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Author Jessica White
Jessica White Writer
Updated on Jun 28th, 2024
Fact checked by Valentina Meneghini

Nutrition and Food: Complete 2024 Guide 

Illustration of different healthy foods in the shape of a plate

Understanding the link between good nutrition and health is crucial. A well-balanced diet not only fuels your body but also plays a vital role in preventing diseases. Poor nutrition, on the other hand, can lead to a range of chronic health issues like cardiovascular disease (CVD), metabolic diseases, and cancer. As Hippocrates wisely said, "Let food be thy medicine and medicine be thy food."

Food is one of the 4 pillars of health. Alongside exercise, sleep, and stress management, what you eat is fundamental to your overall well-being. If you’re a parent, this means making informed food choices not only for yourself but also for your children. Proper nutrition supports growth, cognitive development, and long-term health.

Alongside our in-house, certified nutritionist, I’ve created a thorough, research-backed guide to making informed food choices. This article will explore practical strategies for integrating healthy foods into your family's diet. I’ll address common obstacles and offer up tips to boost the nutrition of your meals.

Nutrition and Food Trends

Let's take a look at some popular trends in the world of food and nutrition, exploring how they can help us make healthier and more sustainable choices.

Plant-Based Eating 

A plate with colourful fruits and vegetables

Plant-based eating focuses on consuming foods derived primarily from plants. This includes not only fruits and vegetables but also nuts, seeds, oils, whole grains, legumes, and beans. While plant-based diets can vary, they generally emphasize whole, minimally processed foods. 

Plant-based diets come in various forms:

  • Vegetarian: Excludes meat but may include dairy and eggs.

  • Vegan: Excludes all animal products, including dairy, eggs, and honey.

  • Flexitarian: Primarily plant-based but occasionally includes meat or fish.

The health benefits of plant-based eating are well-documented. Research studies have shown that a plant-based diet can lower the risk of heart disease, diabetes¹, and certain cancers. It can also help with weight management, improve cholesterol levels, and reduce inflammation and oxidative stress² in the body. 

Increasing consumer demand for plant-based options has led to a surge in meat substitutes and dairy-free offerings. Products like plant-based burgers, almond milk, and soy yogurt are now widely available, making it easier for people to adopt a plant-based diet. 

Nutritional considerations are important when following a plant-based diet. Ensuring adequate intake of essential nutrients like protein, iron, calcium, vitamin B12, and omega-3 fatty acids is crucial. 

Plant-based sources of protein include beans, lentils, tofu, and quinoa. Leafy greens, fortified plant milks, and tofu can provide calcium, while iron can be obtained from legumes, nuts, and seeds. Vitamin B12, which is primarily found in animal products, will require supplementation or fortified foods. Omega-3 fatty acids can be sourced from flaxseeds, chia seeds, and walnuts.

Eating for Gut Health 

The gut-brain connection is an important aspect of your overall health. It highlights the complex relationship between your digestive system and your brain. The gut-brain axis³ refers to the bidirectional communication network linking the central nervous system and the enteric nervous system of the gastrointestinal tract. 

This connection allows your gut and brain to send signals to each other, influencing various bodily functions and overall well-being. Supporting your gut health and microbiome is crucial for maintaining this connection. 

Your gut microbiome, which consists of trillions of microorganisms, plays a vital role in digestion, immune function, and even mental health. A healthy, diverse microbiome helps regulate inflammation, produce important nutrients, and protect against harmful pathogens.

Eating to keep your microbiome healthy involves incorporating specific foods into your diet. These include:

Food type

Why are they needed?

Found in

Probiotics

Probiotics are live beneficial bacteria that support gut health

Fermented foods like yogurt, kefir, sauerkraut, kimchi, and miso

Prebiotics

These non-digestible fibers feed the beneficial bacteria in your gut

Garlic, onions, leeks, asparagus, bananas, and whole grains

Fiber-rich foods

These provide the fiber needed to promote a healthy gut environment and support diverse microbial populations

Whole fruits, vegetables, legumes, and whole grains

Polyphenols

These compounds have antioxidant properties that can benefit gut health

Berries, nuts, seeds, olive oil, and dark chocolate

The impact of your gut on overall health is profound, extending beyond digestion. Emerging research suggests that a healthy gut microbiome can influence mental health, potentially affecting conditions like anxiety and depression. 

The gut produces neurotransmitters such as serotonin, which play a role in mood regulation. An imbalanced microbiome may contribute to mental health issues by increasing inflammation and altering neurotransmitter production.

Scientists continue to explore how gut health influences various aspects of physical and mental health, seeking to understand the mechanisms behind these interactions fully. Ongoing studies will likely reveal even more about the intricate relationship between gut and brain.

Sustainable and Ethical Eating

Vegetables in reusable cloth bags

The importance of seeking sustainable and ethical foods is becoming increasingly recognized. As awareness of the environmental impact of farming grows, more people are considering the effects of their food choices on biodiversity, soil health, and overall ecological balance.

Environmental impact is a major concern in modern farming. Conventional farming methods can lead to soil degradation, water pollution, and loss of biodiversity. Sustainable farming practices, such as crop rotation, organic farming, and agroforestry, help maintain soil health, reduce chemical use, and support diverse ecosystems. 

There is increasing demand for locally sourced and seasonal produce. Local and seasonal foods often have a lower environmental footprint because they require less transportation and storage. Additionally, they support local economies and provide fresher, more nutrient-dense options

Fairtrade practices and humane treatment of animals are gaining attention, ensuring fair wages, safe working conditions, and ethical farming. Labels such as "Fair Trade," "Certified Humane," and "Animal Welfare Approved" help consumers make informed choices. Labels like "organic," "non-GMO," "sustainably sourced," and "grass-fed" reflect the growing interest in sustainability and ethics.

Innovations and alternatives are emerging to meet the demand for sustainable and ethical foods. Lab-grown meat, also known as cultured or cell-based meat, or plant-based alternatives, offer a way to produce animal protein without the environmental and ethical concerns associated with traditional livestock farming. 

Greens Powders

Greens powders and tablets are gaining popularity as a convenient way to boost nutrient intake. These supplements are typically made from a blend of dried and powdered vegetables, fruits, herbs, algae, and other nutrient-dense plant ingredients. They often contain a mix of vitamins, minerals, antioxidants, and probiotics.

Greens powders and tablets can vary widely in their composition, but they commonly include leafy greens, algae, fruits, herbs, probiotics, and fiber. They can be a convenient option for busy people, especially when time is limited or fresh produce is not readily available.

Quote from DeliveryRank's nutritionist

Green Powders aren’t a long-term solution to meeting your nutritional needs. They’re also often overpriced and can eat into your food budget. A focus on eating a diet of real foods should be your primary goal.

Fasting and Intermittent Fasting

Fasting and intermittent fasting have gained popularity for their potential health benefits. These dietary practices involve cycling between periods of eating and fasting, with various methods available to suit different lifestyles and goals.

There are several types of fasting and intermittent fasting, including Time-Restricted Eating (eating all meals within a specific window of time each day, typically 8-12 hours, and fasting for the remaining hours), Alternate-Day Fasting, the 5:2 Diet, and extended fasting (with medical supervision).

Research suggests that fasting and intermittent fasting may offer several health benefits . However, fasting should be done under the guidance of professionals due to safety considerations. Consult with a healthcare provider or a registered dietitian to ensure that fasting is appropriate for your individual health needs.

Healthy Eating Myth Busting 

An illustration of a plate with healthy food surrounded by other food and speech bubbles

Here are some common misconceptions and the truth behind them.

  • Carbs make you gain weight 🍞: Carbs are stored with water in our bodies and the rapid weight loss associated with initially cutting carbs is actually water loss. This is where carbs get their bad reputation, but they are a crucial part of a balanced diet. Whole grains, fruits, and vegetables provide essential nutrients and fiber. It’s refined carbs and added sugars, found in processed foods, that can contribute to weight gain when consumed in excess.

  • All fats are bad 🥑: Not all fats are created equal. Healthy fats, such as those found in avocados, nuts, seeds, and olive oil, are essential for brain function, hormone production, and nutrient absorption. Trans fats and excessive saturated fats, often found in processed foods, should be limited, but healthy fats are a vital part of a nutritious diet.

  • You need to detox and cleanse your body 🚫: Your body has its own efficient detoxification systems, primarily the liver and kidneys. There’s no scientific evidence supporting the need for detox diets. Instead, focus on eating a balanced diet rich in fruits, vegetables, whole grains, and lean proteins to support your body’s natural detox processes.

  • Fresh food is better than frozen 🧊: Frozen fruits and vegetables can be just as nutritious, if not more so, than fresh ones. They are often frozen at peak ripeness, preserving their nutrient content. Fresh produce can lose nutrients over time, especially if it has been transported long distances or stored for extended periods.

  • Eating late at night causes weight gain 🌙: Weight gain is more about the overall quality and quantity of food consumed rather than the timing of meals. Eating late at night doesn’t inherently cause weight gain, but it can lead to poor food choices or overeating. Focus on balanced meals and listen to your body’s hunger cues, regardless of the time.

  • Plant-based diets don’t give you enough protein 🌱: Plant-based diets can provide ample protein if they include a variety of protein-rich foods like beans, lentils, tofu, tempeh, nuts, seeds, and whole grains. Combining different plant proteins throughout the day ensures you get all the essential amino acids needed for optimal health.

5 Easy Hacks to Boost Nutrition

Boosting your nutrition doesn't have to be complicated. Here are 5 easy hacks that can help you enhance your diet and improve your overall health effortlessly.

1. Support Your Gut Microbiome

Maintaining a healthy gut microbiome is crucial for overall health. Aim to eat 30 different plant-based foods¹⁰ each week to provide a variety of fiber and nutrients that feed your beneficial gut bacteria. 

Foods like garlic, onions, asparagus, and bananas are excellent for promoting a diverse and healthy microbiome. Remember, a healthy gut also supports a strong gut-brain connection, which can positively influence your mental health.

2. Eat the Most Nutritious Foods

Incorporate nutrient-dense foods into your diet for maximum health benefits. Some of the top choices include leafy greens like kale and spinach, berries such as blueberries and strawberries, fatty fish like salmon, nuts and seeds, legumes, and colorful vegetables. These foods are packed with essential vitamins, minerals, antioxidants, and healthy fats.

3. Add Extra Nutrition to Your Meals

Enhance the nutritional content of your dishes by adding microgreens, fresh herbs, and spices. These are rich in vitamins and antioxidants. You can also include nuts, seeds, sprouted legumes¹¹, and fermented foods like yogurt and kimchi. These additions not only boost nutritional value but also improve flavor and texture.

4. Optimize Food Pairing

Combine certain foods to enhance nutrient absorption. For example, pair iron-rich foods like spinach with vitamin C-rich foods¹² such as citrus fruits to improve iron absorption. Adding a bit of healthy fat to your vegetables, like olive oil on a salad, can increase the absorption of fat-soluble vitamins¹³ A, D, E, and K.

5. Choose the Right Cooking Methods

Cooking methods can impact the nutritional value of your food. Steaming vegetables preserves more vitamins and minerals compared to frying. Blending fruits and vegetables into smoothies retains fiber that might be lost in juicing. 

Incorporating raw foods¹⁴ like salads and fresh fruits can also ensure you get maximum nutrients, as some vitamins are sensitive to heat and may be destroyed during cooking.

What Foods Are the Healthiest?

The term “healthy” is subjective, as it doesn't purely relate to physical health. What is considered healthy for one person might not be for another. For instance, wholegrain bread is generally seen as a healthy choice due to its high fiber content and nutrients. However, for someone with celiac disease, it can cause severe health issues. 

Quote about healthy foods from DeliveryRank's nutritionist

Nutrient-Dense Foods Across Food Groups

Here are some of the most nutrient-dense foods, categorized by food groups:

Food Group

Food Type

Nutrients

More Reading

Vegetables 🥬


Leafy greens (spinach, kale)

Packed with vitamins A, C, K, and minerals like iron and calcium

How to Eat More Spinach,
How to Eat More Leafy Greens

Cruciferous vegetables (broccoli, Brussels sprouts)

Rich in fiber, vitamins C and K, and various antioxidants


Sweet potatoes

High in vitamins A and C, fiber, and potassium


Fruits 🍊


Berries (blueberries, strawberries)

High in antioxidants, vitamins C and K, and fiber


Citrus fruits (oranges, grapefruits)

Excellent source of vitamin C and fiber


Avocados

Rich in healthy fats, vitamins E and K, and folate


Grains 🍚

Quinoa

High in protein, fiber, iron, and magnesium


Oats

Good source of fiber, particularly beta-glucan, which helps reduce cholesterol levels


Brown rice

Provides fiber, magnesium, and B vitamins


Protein Foods 🍗


Lean meats (chicken, turkey)

High in protein and B vitamins, with lower fat content


Fish (salmon, mackerel)

Rich in omega-3 fatty acids, protein, and vitamin D

How to Eat More Fish

Legumes (lentils, chickpeas)

Excellent source of plant-based protein, fiber, and iron

How to Eat More Lentils,
How to Eat More Beans

Dairy and Dairy Alternatives 🧀


Greek yogurt

High in protein, calcium, and probiotics for gut health


Cheese

Provides calcium, protein, and various vitamins


Fortified plant milks (soy, almond)

Often enriched with calcium, vitamin D, and B12


Fats 🥜


Nuts and seeds (almonds, chia seeds)

High in healthy fats, protein, and fiber


Olive oil

Rich in monounsaturated fats and antioxidants

How to Eat More Olive Oil

Fatty fish (salmon, sardines)

Packed with omega-3 fatty acids and protein


Staying hydrated is essential for overall health. While not a food, water supports every bodily function and helps maintain energy levels. A healthy diet is balanced and varied and should cater to your specific health needs and preferences. Drinking water is a universal need, no matter who you are.

What’s the Difference Between Nutrition and Food?

Not all foods are nutritionally equal. The nutrient content of different foods varies significantly, impacting your health in different ways. While some foods are rich in vitamins, minerals, and other essential nutrients, others may offer little nutritional value despite being calorie-dense.

The Standard American Diet (SAD) often falls short in nutrition. This diet is characterized by high intakes of ultra-processed foods, sugars, and unhealthy fats and tends to be low in essential nutrients. For instance, nearly 90 percent of the US population15 falls short of the recommended daily intake for vegetables.

Unfortunately, SAD is linked to various health issues, including obesity, diabetes, and heart disease. Healthier alternatives, rich in whole foods like fruits, vegetables, lean proteins, and whole grains, provide better nutrition and support overall health.

Focusing on nutrition helps you stay healthy and manage health conditions. Good nutrition supports your immune system, helps maintain a healthy weight, and can ease symptoms of chronic diseases. It also plays a crucial role in meal planning, ensuring that you and your family get the necessary nutrients for optimal health.

Understanding the nutritional content of the foods you buy is essential, but it can be a daunting task. Learning to read labels effectively helps you make better food choices quickly, saving time and ensuring your meals are both nutritious and balanced.

Types of Nutrients

Essential nutrients are crucial for your body's proper functioning. These nutrients are called "essential" because your body cannot produce them on its own, or cannot produce enough of them, so you must obtain them through your diet.

Infographic listing types of nutrients

Vitamins

Vitamins are organic compounds that your body needs in small amounts. They play various roles, including supporting your immune system, aiding in energy production, and ensuring healthy skin and eyes. Different vitamins have different functions. For example, Vitamin C is vital for immune function and skin health, while Vitamin D supports bone health.

Minerals

Minerals are inorganic elements that are essential for various bodily functions. They help build strong bones and teeth, regulate metabolism, and stay properly hydrated. Key minerals include calcium – which is critical for bone health – and iron, which is necessary for oxygen transport in the blood.

Protein

Proteins are the building blocks of your body. They are made up of amino acids, which are crucial for repairing tissues, building muscle, and making enzymes and hormones. Protein is essential for growth, immune function, and maintaining lean body mass. Common sources include meat, dairy, beans, and nuts.

Fats

Fats are a vital source of energy and are necessary for absorbing certain vitamins. Healthy fats – such as those found in avocados, nuts, and olive oil – support cell growth, protect organs, and keep your body warm. They also help produce important hormones. Avoiding trans fats and limiting saturated fats is important for heart health.

Water

Water is essential for nearly every bodily function. It helps regulate body temperature, transports nutrients and waste, and is vital for maintaining cellular health. Staying hydrated is crucial for energy levels, brain function, and overall health. You should aim to drink enough water daily to stay hydrated, especially when active or in hot climates.

Carbohydrates

Carbohydrates are your body's main source of energy. They are broken down into glucose, which fuels your cells, tissues, and organs. Carbs are found in fruits, vegetables, grains, and legumes. Choosing complex carbohydrates, like whole grains and fiber-rich vegetables, provides sustained energy and supports digestive health.

Guidelines for Healthy Nutrition

Following guidelines for healthy nutrition can significantly improve your overall well-being. A varied and balanced diet supports everything from gut health to immune function, ensuring that you and your family get the nutrients needed to thrive.

Incorporating Diversity in Meals

Introducing variety into your meals ensures good gut microbiome function and diversity¹⁶. A diverse diet supports a healthy gut, which is crucial for your overall well-being. Different foods provide multiple types of fibers and nutrients that feed the beneficial bacteria in your gut. A balanced and robust microbiome promotes a strong immune system among numerous other benefits.

Trying new foods and cuisines can prevent meal monotony and make eating more enjoyable. Experimenting with different cuisines introduces you to a broader range of nutrients. It’s a great way to discover healthy and delicious options that you may not have considered before. You can even turn it into a family activity that encourages everyone to be more adventurous. Subscribing to a meal delivery service can be a good way to try out new ingredients, diets, and cuisines.

Introducing New Flavors and Ingredients to Children

Young child in high chair being spoon-fed

Introducing new flavors and ingredients to children is essential. It helps develop their palates and nutritional habits. Children are more likely to accept and enjoy a variety of foods if they are exposed to them early and often. 

Here are a few tips to make this process easier:

  • Start early: Begin introducing new flavors and textures when your children are young.

  • Be persistent: It may take several exposures for a child to accept a new food, so don’t give up too quickly.

  • Make it fun: Create positive associations with new foods by involving your children in meal preparation or presenting the food in a fun, appealing way.

  • Lead by example: Children are more likely to try new foods if they see their parents enjoying them.

Variation in Nutritional Guidelines

Nutritional guidelines vary across countries and age groups, highlighting that nutrition isn’t one size fits all. For example, the US Dietary Guidelines¹⁵ set the minimum standards needed to prevent health issues, but aiming for a more diverse and nutrient-rich diet provides additional health benefits.

Guidelines differ by age group, with specific recommendations for children, adults, and seniors. Children need nutrients that support growth and development, such as calcium and iron, while adults may focus more on maintaining health and preventing chronic diseases. Seniors might need more of certain nutrients like vitamin D and calcium to support bone health.

We can look to other cuisines for potentially healthier alternatives to the Standard American Diet. For example, Japanese cuisine includes large amounts of fish, seaweed, and fermented food. This diet reflects Japanese culture and naturally contains a healthy balance of nutrients. Similarly, the Mediterranean diet focuses on wholesome ingredients like olive oil, nuts, seeds, fruits, vegetables, and whole grains. 

Understanding these differences can help you tailor your diet to meet not only basic nutritional needs but also optimize your health. Incorporating a variety of foods from different cultural diets and adjusting for specific age-related nutritional needs can enrich your meals and improve your overall nutrition.

The Basics of a Healthy Diet

The food pyramid used to be the standard in nutrition education. It was meant to illustrate the ideal proportions of different food groups for a healthy diet, but it lacks nuance. It emphasizes a grain-heavy diet with minimal fats and oils. However, it doesn’t distinguish between good and bad sources of fat. 

The Healthy Eating Plate has emerged as a more detailed and practical visual guide for structuring your meals. This plate-based approach simplifies meal planning, making it easier to ensure a balanced intake of essential nutrients every time you eat.

Created by experts at the Harvard T.H. Chan School of Public Health¹⁷, the Healthy Eating Plate emphasizes the importance of portion control and variety in your diet. By following this visual guide, you can ensure you're getting the right mix of nutrients for optimal health. 

Here's a breakdown of the key components of the Healthy Eating Plate:

 Infographic with a diagram of a healthy plate showing the breakdown of fruits and vegetables, whole grains, and healthy protein

Vegetables and Fruits

  • Fill half your plate with a variety of vegetables and fruits.

  • Prioritize vegetables over fruits.

  • Choose a rainbow of colors for diverse nutrients.

Whole Grains

  • Allocate a quarter of your plate to whole grains.

  • Include options like brown rice, whole wheat, quinoa, and barley.

  • Limit refined grains to maintain stable blood sugar levels.

Healthy Protein

  • Dedicate the remaining quarter of your plate to healthy proteins.

  • Opt for fish, poultry, beans, nuts, and tofu.

  • Minimize red and processed meat consumption.

Healthy Oils

  • Use healthy oils such as olive, canola, and other plant-based oils.

  • Avoid trans fats and limit butter to promote heart health.

Hydration

  • Drink water, tea, or coffee with minimal added sugar.

  • Limit milk and dairy to one or 2 servings daily.

  • Limit/restrict juice and other sugary beverages.

Physical Activity

  • Complement your healthy eating with regular physical exercise.

  • Aim to stay active to support weight management and overall health.

Food Choices and the Impact on Health

Processed Food vs. Whole Food 

Whole foods are minimally altered from their natural state. These include fresh fruits, vegetables, whole grains, lean meats, and nuts. They’re rich in essential nutrients and free from added sugars, unhealthy fats, and artificial ingredients. 

In contrast, processed foods have been altered in some way. Some can be minimally processed with no adverse health effects, such as canning or freezing without altering the nutritional value. However ultra-processed foods can be related to negative health outcomes if consumed in excess. This is because they contain other substances, such as added preservatives, artificial flavors, and colors, as well as being typically high in unhealthy fats, added sugar and salt, and having low nutritional value.

An analysis of 45 studies with nearly 9.9 million participants¹⁸ found significant associations between ultra-processed food intake and increased risks of mortality, various cancers, and mental, respiratory, cardiovascular, gastrointestinal, and metabolic health issues. 

Strong evidence highlights elevated risks for cardiovascular disease-related mortality, type 2 diabetes, and mental health disorders like anxiety and depression. These findings emphasize the importance of reducing ultra-processed food consumption for better health and longevity.

The Link Between Diet and Chronic Disease

Certain dietary patterns can cause specific health issues¹⁹. Diets high in ultra-processed foods, sugars, and unhealthy fats are linked to an increased risk of chronic diseases such as obesity, type 2 diabetes, heart disease, and certain cancers. 

The Standard American Diet (SAD), which is rich in refined carbohydrates, processed meats, and sugary beverages, has been shown to contribute significantly to these health problems. Consuming large amounts of sodium and trans fats further exacerbates these risks by leading to hypertension and increasing bad cholesterol levels.

Evidence shows that particular diets can have a positive effect on health. The Mediterranean diet, for instance, is associated with a lower risk of chronic diseases and improved longevity. This diet emphasizes the consumption of fruits, vegetables, whole grains, nuts, seeds, olive oil, and fish, while limiting red meat and processed foods. 

Studies have shown that adhering to the Mediterranean diet can reduce signs of Alzheimer’s disease²¹, lower the risk of heart disease and stroke, and improve overall cognitive function.

Eating certain foods and following particular diets can reduce the risk of specific health issues. A plant-based diet²¹, which focuses on fruits, vegetables, legumes, nuts, and whole grains, is linked to a lower risk of heart disease, hypertension, type 2 diabetes, and certain cancers. 

Whole foods play a crucial role in preventing chronic diseases. Foods like berries, leafy greens, nuts, seeds, and fatty fish are nutrient-dense and have been shown to lower the risk of chronic illnesses. 

For example, consuming berries regularly can improve cardiovascular health²² due to their high antioxidant content, while fatty fish like salmon, rich in omega-3 fatty acids, can reduce inflammation²³ and lower the risk of heart disease.

Common Nutritional Deficiencies

Nutritional deficiencies are widespread and can lead to various health issues. Here are some of the most common deficiencies, the conditions they cause, and the sources where you can find these essential nutrients.

Iron

Iron deficiency is one of the most common nutritional deficiencies worldwide affecting 30% of the population²⁴. It can lead to anemia, characterized by fatigue, weakness, and pale skin. To prevent this, include iron-rich foods such as red meat, poultry, fish, lentils, beans, and fortified cereals in your diet.

Vitamin D

Vitamin D deficiency can cause bone-related conditions such as rickets in children and osteomalacia or osteoporosis in adults, with symptoms including bone pain and muscle weakness. You can find vitamin D through sunlight exposure, fatty fish like salmon and mackerel, fortified dairy products, and egg yolks.

Depending on where you live, you may be unable to rely on food consumption to meet the recommended Vitamin D requirements. In certain countries, it’s recommended that you take a supplement from September through to March/April. 

Iodine

Iodine deficiency can lead to thyroid gland problems, including goiter (an enlarged thyroid) and hypothyroidism, and can also cause developmental delays in children. Iodine can be sourced from iodized salt, seafood, dairy products, and eggs.

Vitamin B12

Vitamin B12 deficiency can cause pernicious anemia, characterized by fatigue, weakness, constipation, and neurological issues like numbness and tingling in the hands and feet. Ensure adequate intake by consuming meat, fish, dairy products, eggs, and fortified cereals. For those without animal products in their diets, you will need to consider a B12 supplement. 

Magnesium

Magnesium deficiency can result in muscle cramps, mental disorders, osteoporosis, and high blood pressure, often linked to an increased risk of cardiovascular diseases. Incorporate magnesium-rich foods such as green leafy vegetables, nuts, seeds, whole grains, and legumes into your diet.

Calcium

Calcium deficiency can lead to weakened bones, increasing the risk of fractures and conditions like osteoporosis and rickets, with symptoms including muscle cramps and spasms. Dairy products, fortified plant-based milks, leafy green vegetables, and almonds are good sources of calcium.

Vitamin A

Vitamin A deficiency can cause night blindness and increase the risk of infections, as well as lead to skin issues and delayed growth in children. You can find vitamin A in liver, carrots, sweet potatoes, dark leafy greens, and fortified foods.

Do You Need to Take Vitamin Supplements?

A pot of open orange gummies with a sliced orange in the background

Determining whether you need vitamin supplements depends on your diet and health status. Ideally, most people can get the necessary vitamins and minerals from a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats. 

Supplements are not a substitute for a healthy diet. While they can help fill nutritional gaps, they should not replace whole foods that provide a wide range of nutrients and other health benefits. Aim to meet your nutritional needs primarily through a varied and balanced diet, using supplements as an additional support if necessary.

However, certain groups may benefit from supplements, such as those with specific deficiencies, pregnant women, older adults, or individuals with restricted diets. Before starting any supplement regimen, it's important to discuss your individual needs with a healthcare professional.

Healthy Food Swaps

Infographic with two columns of unhealthy and healthy food swaps

Making healthy food swaps can significantly improve your diet without feeling overwhelming. Small changes are easier to manage and can lead to longer-lasting habits. Here are some simple swaps you can start incorporating into your meals.

  • Beans instead of meat: Beans are a great source of protein and fiber and can be a healthier alternative to meat. You don't have to make the switch all at once; you can start by replacing half of your meat with beans in a chili for example.

  • Greek yogurt instead of sour cream: Greek yogurt is rich in protein and probiotics, making it a nutritious substitute for sour cream. Use it as a topping for baked potatoes, tacos, or in dips to cut down on fat while boosting protein intake.

  • Whole grains instead of refined grains: Choose whole grains like brown rice, quinoa, and whole wheat pasta instead of their refined counterparts. Whole grains provide more fiber, vitamins, and minerals, supporting better digestion and sustained energy levels.

  • Olive oil instead of butter: Olive oil, particularly extra virgin, is rich in heart-healthy monounsaturated fats and antioxidants. Use it in place of butter for cooking, sautéing vegetables, or drizzling over salads to enhance flavor and nutrition.

  • Nuts and seeds instead of croutons: For a crunchy salad topping, opt for nuts and seeds instead of croutons. They add healthy fats, protein, and fiber, making your salad more nutritious and satisfying.

  • Fruit instead of sugary snacks: Swap out cookies, candies, and other sugary snacks for fresh or dried fruit. Fruits like berries, apples, and oranges provide natural sweetness along with vitamins, minerals, and fiber.

  • Herbs and spices instead of salt: Reduce sodium intake by flavoring your dishes with herbs and spices instead of salt. Experiment with options like garlic, ginger, basil, and cumin to enhance taste without adding extra sodium.

FAQ

What is the difference between food and nutrition?

The difference between food and nutrition is that food refers to what you eat and drink, while nutrition is about the nutrients your body gets from food. Food provides the substances we consume daily, like fruits, vegetables, meats, and grains. Nutrition focuses on how our body uses these substances to function, grow, and maintain health​​.

What does food and nutrition do?

Food provides energy and the building blocks for the body, while nutrition ensures these foods meet our body's needs. Proper nutrition involves obtaining and using essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals from our diet to support bodily functions, growth, and health​.

What is the healthiest food you can eat?

Leafy greens, berries, nuts, and fatty fish are some of the healthiest foods you can eat. These foods are nutrient-dense, meaning they provide high levels of vitamins, minerals, and antioxidants essential for maintaining good health and preventing chronic diseases​​.

How does poor nutrition affect health?

Poor nutrition can lead to numerous health problems, including obesity, heart disease, diabetes, and deficiencies. Inadequate intake of essential nutrients can weaken the immune system, impair physical and mental development, and increase the risk of chronic conditions​​.

References

    1https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466941/

      2https://www.sciencedirect.com/science/article/pii/S2213231721000173

        3https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367209/

          4https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815357/

            5https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282467/

              6https://pubmed.ncbi.nlm.nih.gov/25526594/

                7https://www.livescience.com/lab-grown-meat

                  8https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9946909/

                    9https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(24)00098-1/fulltext

                      10https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5954204/

                        11https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8358358/

                          12https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7607440/

                            13https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(21)00194-7/fulltext

                              14https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5902672/

                                15https://www.dietaryguidelines.gov/sites/default/files/2020-12/Dietary_Guidelines_for_Americans_2020-2025.pdf

                                  16https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9455721/

                                    17https://www.hsph.harvard.edu/nutritionsource/healthy-eating-plate/

                                      18https://www.bmj.com/content/384/bmj-2023-077310

                                        19https://www.nih.gov/news-events/nih-research-matters/how-dietary-factors-influence-disease-risk

                                          20https://www.nia.nih.gov/news/mind-and-mediterranean-diets-linked-fewer-signs-alzheimers-brain-pathology

                                            21https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6742661/

                                              22https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3068482/

                                                23https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8846546/

                                                  24https://bmjopengastro.bmj.com/content/9/1/e000759

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