
Eating a balanced diet is an essential part of maintaining good health and can help you feel your best. While there is no one-size-fits-all approach to healthy eating, there are several key principles that underpin a balanced diet. These include eating a variety of foods, such as fruits and vegetables, whole grains, lean proteins, and healthy fats, while limiting the consumption of processed foods, added sugars, and excessive sodium. Portion control and physical activity are also important factors in maintaining a healthy weight and reducing the risk of obesity-related health issues.
| Characteristics | Values |
|---|---|
| Nutrients | Vitamins, minerals, protein, carbohydrates, fats, fibre, phytochemicals, calcium, iron, sodium |
| Calories | Depends on sex, age, and activity level. An average person needs 2000 calories to maintain weight. |
| Fats | Less than 30% of total energy intake. Unsaturated fats are preferable to saturated fats and trans fats. |
| Saturated fats | Less than 10% of total energy intake |
| Trans fats | Less than 1% of total energy intake |
| Sugars | Less than 10% of total energy intake. For additional health benefits, reduce to less than 5%. |
| Sodium | Keep below 2300 mg per day |
| Food groups | Fruits, vegetables, legumes, grains, protein foods, dairy |
| Whole foods | Fresh whole foods like broccoli, apples, almonds, plain yoghurt, canned tuna, natural peanut butter |
| Moderation | Avoid eating to extremes, neither too much nor too little |
| Variety | Consume different foods from within each of the food groups |
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What You'll Learn

Eat a variety of nutrient-dense foods
Eating a variety of nutrient-dense foods is a key principle of a balanced diet. Nutrient-dense foods are those that provide a high level of nutrients relative to their calorie count. They are the opposite of "empty-calorie" foods, which provide little nutritional value despite their high calorie count.
Nutrient-dense foods include fruits and vegetables, lean meats, poultry, fish, low-fat dairy products, and whole grains. These foods are rich in essential nutrients such as vitamins, minerals, protein, healthy fats, fibre, and carbohydrates. For example, whole grains like whole wheat, barley, quinoa, and brown rice have a milder effect on blood sugar and insulin levels compared to refined grains.
By choosing nutrient-dense foods, you can ensure you get all the necessary nutrients without exceeding your calorie intake. This helps maintain a healthy weight and lowers the risk of diseases such as obesity, type 2 diabetes, and high blood pressure.
It is important to note that the recommended daily calorie intake varies depending on factors such as age, sex, and physical activity level. On average, an adult requires about 2,000 calories per day to maintain their weight.
To incorporate a variety of nutrient-dense foods into your diet, consider the following:
- Make fruits and vegetables the largest portion of your meals, aiming for at least 5 servings per day.
- Include whole grains, legumes (beans, lentils), nuts, and seeds in your diet.
- Choose lean meats and poultry, and low-fat dairy options.
- Opt for healthy fats like unsaturated oils (olive oil) over saturated and trans fats.
- Limit added sugars and sodium in your diet.
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Consume adequate amounts of essential nutrients
Consuming a variety of nutrient-dense foods is essential to meeting your body's nutritional needs. Nutrient-dense foods are those that provide a high number of essential nutrients per calorie, ensuring you get adequate nutrition without exceeding your calorie needs.
Fruits and vegetables are excellent sources of vitamins, minerals, and fibre. Aim for a variety of colourful fruits and vegetables to benefit from their different nutrient profiles. Whole grains, such as whole wheat, barley, wheat berries, quinoa, oats, and brown rice, are also rich in fibre and have a milder effect on blood sugar and insulin levels compared to refined grains.
Protein is another essential nutrient for staying strong and healthy. Plant-based proteins, such as beans, lentils, soy foods, nuts, seeds, and seafood, offer the most health benefits. For those consuming animal products, lean meats, poultry, and low-fat dairy are good sources of protein and other nutrients.
Healthy fats, like unsaturated fats, are essential in a diet. Found in fish, avocado, nuts, and olive oils, these fats are known to lower cardiovascular disease risk. However, it is important to limit saturated fats and trans fats, which can negatively impact health.
Finally, while not technically a nutrient, water is essential for health and should not be overlooked. Aim to drink plenty of fluids throughout the day, with water being the best choice.
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Balance food choices for optimal health
A balanced diet is essential for optimal health. It gives your body the nutrients it needs to function correctly and protects against disease, infection, fatigue, and low performance. The exact composition of a balanced diet will vary depending on individual characteristics such as age, gender, and physical activity levels, but there are some general principles to follow.
Firstly, focus on whole, unprocessed foods such as fruits, vegetables, legumes, whole grains, nuts, and seeds. These plant foods offer a wide range of vitamins, minerals, fibre, and phytochemicals, which have antioxidant, anti-inflammatory, and even anticancer properties. Aim for a variety of colourful vegetables and fruits to ensure you get a diverse range of nutrients.
Secondly, ensure you are consuming adequate protein, which is essential for staying strong and healthy. Plant-based proteins such as beans, lentils, soy foods, nuts, and seeds are excellent choices, as are seafood options like fish. If you consume animal products, include lean meats, poultry, and low-fat dairy products in moderation, as these can be good sources of calcium and iron.
Thirdly, balance your macronutrients. This includes consuming healthy fats, such as unsaturated fats found in fish, avocado, nuts, and olive oil, while limiting saturated fats and trans fats, which can increase the risk of heart disease and other illnesses. Carbohydrates are also important, and whole grains such as whole wheat, barley, quinoa, and brown rice are preferable to refined grains like white bread and white rice due to their milder effect on blood sugar and insulin levels.
Lastly, practice moderation and be mindful of your calorie intake. While some fat is essential, limit your consumption of highly processed foods that are high in sugar and salt, as these can contribute to weight gain, tooth decay, and increased risk of diseases. Instead, opt for nutrient-dense foods that provide a wide range of essential nutrients without excessive calories. Remember, balance is key, and by combining a variety of whole foods from different food groups, you can optimise your health and well-being.
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Minimise processed foods
Minimising the consumption of processed foods is an important principle of a balanced diet. Processed foods are any that have been cooked, canned, frozen, or packaged. While some processed foods can be enjoyed as part of a healthy diet, such as canned vegetables, frozen fruits, and pasteurised dairy products, it is important to limit those that are high in sodium, sugar, additives, and preservatives.
The reason for this is that processed foods are generally considered inferior to unprocessed foods, and there is evidence of an association between certain types of processed foods and poor health outcomes. For each additional daily serving of ultra-processed food, there is an 18% increased risk of death. This is thought to be due to the poorer nutritional quality of these foods, which are often low in nutrients and high in unhealthful fats, added sugars, and excess sodium.
To minimise your consumption of processed foods, you can make gradual changes to your diet. For example, you could try replacing processed snacks with fresh fruit, mixed nuts, edamame, or veggies with hummus. Preparing meals in large batches once or twice a week can also help, as it ensures you have nutritious meals ready to go when you're busy and makes it less tempting to opt for convenience meals or fast food.
Another way to reduce your intake of processed foods is to replace processed drinks with water. If you don't like plain water, you can try sparkling or flavoured water, or infuse water with fresh fruit or herbs. When you do buy processed foods, checking the nutrition labels and choosing those with minimal additives and preservatives can help you make healthier choices.
While it is not necessary to eliminate processed foods from your diet completely, making these small changes can lead to healthier eating habits and improve your overall health.
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Eat in moderation
Eating in moderation is a crucial principle of a balanced diet. Moderation is essential for optimal health and survival. It is important to remember that eating is, in part, about enjoyment and indulging with a spirit of moderation. For example, burgers, French fries, cake, and ice cream every night for dinner will lead to health complications. However, when consumed as part of an otherwise healthy diet and only on a weekly basis, these foods should not significantly impact overall health. If this is done once per month, it will have even less impact on overall health.
It is also important to understand that all types of fat are high in energy and should be consumed in small amounts. While some fat in the diet is essential, people in the UK tend to consume too much saturated fat, which can increase cholesterol levels in the blood and lead to a higher risk of heart disease. Therefore, it is recommended to get most of your fat from unsaturated oils and spreads, such as olive oil. Additionally, limit your intake of trans fats, found in baked and fried foods, pre-packaged snacks, frozen pizza, pies, cookies, and biscuits.
Deep-fried foods are often high in calories but low in nutritional value, so they should be consumed sparingly. Similarly, regularly consuming foods and drinks high in sugar increases your risk of obesity and tooth decay. Eating too much salt can also negatively impact your health by raising your blood pressure and increasing the risk of heart disease or stroke. Therefore, when consuming foods and drinks high in fat, salt, and sugar, it is best to do so less often and in small amounts.
It is worth noting that the concept of moderation also applies to nutrient intake. For instance, while calcium is essential for healthy teeth and bones, excessive calcium can interfere with iron absorption. Similarly, sodium is a vital nutrient, but an overabundance can contribute to congestive heart failure and chronic kidney disease. Therefore, achieving balance in your diet involves ensuring you do not consume one nutrient at the expense of another.
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Frequently asked questions
A balanced diet is an important part of maintaining good health and can help you feel your best. Here are some principles to follow:
- Eat at least 5 portions of a variety of fruits and vegetables every day.
- Base meals on higher-fibre, starchy foods like potatoes, bread, rice, or pasta.
- Include some dairy or dairy alternatives like soy drinks.
- Eat beans, pulses, fish, eggs, meat, and other protein sources.
- Choose unsaturated oils and spreads and consume them in small amounts.
Fruits and vegetables are a good source of vitamins, minerals, and fibre. Here are some tips to include more in your diet:
- Keep a bowl of fresh fruit on your kitchen counter or dining table for easy access.
- Include a variety of colourful fruits and vegetables in your meals to make them more appealing.
- Try different preparation methods, such as steaming, roasting, or blending into smoothies.
- Sneak extra vegetables into sauces, soups, and casseroles.
- Keep frozen or canned fruits and vegetables on hand for convenience.
The amount of protein you need depends on your age, sex, and activity level. According to the NHS, you should include some form of protein in your diet, such as beans, pulses, fish, eggs, and meat. The British Nutrition Foundation recommends including a range of protein-rich foods, especially beans, peas, and lentils.
Dairy alternatives are a great option for those who are lactose intolerant, vegan, or looking for plant-based options. Some healthy alternatives to dairy include:
- Soy milk, which is a good source of protein and calcium.
- Almond milk, which is low in calories and sugar but may be lower in calcium and protein.
- Oat milk, which has a creamy texture and is often fortified with vitamins and minerals.
- Rice milk, which is naturally sweet and suitable for those with nut allergies.
According to the British Nutrition Foundation, current UK diets are high in saturated fat, salt, and sugar. Here are some signs that you may be consuming too much:
- You regularly crave sweet or salty snacks.
- You add sugar to your tea or coffee.
- You often choose processed or pre-packaged foods over fresh, whole foods.
- You frequently drink sugary drinks or eat sugary snacks.
- You don't check nutrition labels for sugar and sodium content.











































