Jeffrey Salazar
A nutritional diet is one that gives your body the nutrients it needs to function correctly. The average person needs about 2,000 calories every day to maintain their weight, but this depends on their age, sex, and physical activity level. A nutritional diet contains foods from the following groups: fruits, vegetables, dairy, grains, and protein. It is recommended to fill half your plate with fruits and vegetables, a quarter with whole grains, and the rest with protein foods. Whole grain foods include whole grain bread, brown or wild rice, quinoa, oatmeal, and hulled barley. They are rich in fibre, protein, and B vitamins. It is also important to stay hydrated by drinking water, coffee, or tea, and to limit sugary drinks.
What does a nutritional diet look like?
| Characteristics | Values |
|---|---|
| Calories | The average person needs about 2,000 calories every day to maintain their weight, but the amount will depend on their age, sex, and physical activity level. Males tend to need more calories than females, and people who exercise need more calories than people who don’t. |
| Carbohydrates | The type of carbohydrate in the diet is more important than the amount. Some sources of carbohydrates—like vegetables (other than potatoes), fruits, whole grains, and beans—are healthier than others. |
| Fats | Less than 30% of total energy intake from fats. Unsaturated fats (found in fish, avocado, nuts, and in sunflower, soybean, canola, and olive oils) are preferable to saturated fats (found in fatty meat, butter, palm and coconut oil, cream, cheese, ghee, and lard) and trans fats. |
| Protein | Include legumes, nuts, seeds, tofu, fortified soy beverage, fish, shellfish, eggs, poultry, lean red meats, lower-fat milk, lower-fat yogurts, and cheeses lower in fat and sodium. |
| Vitamins and minerals | Found in fruits, vegetables, pulses, nuts, and eggs. |
| Water | Drink plenty of water. Water supports health and promotes hydration without adding calories to the diet. |
| Sugary drinks | Avoid sugary drinks, including energy drinks, fruit drinks, 100% fruit juice, soft drinks, and flavored coffees, as they have lots of sugar and little to no nutritional value. |
| Sodium | Less than 5 grams of salt (equivalent to about one teaspoon) per day. |
| Variety | Eat a variety of good foods to provide adequate nutrition. |
| Meal frequency | Eat smaller meals more often. Eat at least three meals a day with snacks in between. |
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What You'll Learn
Consume a variety of fruits and vegetables
Consuming a variety of fruits and vegetables is essential for maintaining a nutritionally adequate diet. While the specific quantity of fruits and vegetables may vary depending on individual factors such as age, sex, height, weight, and physical activity levels, the consensus across dietary guidelines is that these food groups should constitute a significant proportion of one's diet.
Fruits and vegetables are typically low in fat and calories, making them ideal for maintaining a healthy weight and supporting cardiovascular health. They are packed with essential vitamins, minerals, and antioxidants, including folate, vitamin C, and potassium. For example, tomatoes contain lycopene, a compound that may help protect men against aggressive forms of prostate cancer. Additionally, the dietary fiber in fruits and vegetables aids in digestion and promotes a healthy gut, while the natural sugars in fruits can satisfy a sweet tooth without causing the same blood sugar spikes as refined sugars.
The World Health Organization (WHO) recommends a minimum of 400g of fruit and vegetables per day, roughly equivalent to five 80g portions, to reduce the risk of serious health problems. This can include fresh, frozen, canned, dried, or juiced produce, with the caveat that canned fruits packed in syrup and fruit juices may contribute additional sugars. Local and seasonal fruits are ideal, as they tend to be fresher and provide a greater concentration of nutrients.
When planning meals, it is beneficial to incorporate a variety of colorful fruits and vegetables, as different colors indicate different plant compounds and nutrients. For instance, green leafy vegetables like spinach and kale are rich in iron, while orange vegetables like carrots and sweet potatoes are high in vitamin A. By including a diverse array of fruits and vegetables in one's diet, the body receives a comprehensive range of nutrients that contribute to overall health and well-being.
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Choose healthy oils and fats
A nutritional diet is one that gives your body the nutrients it needs to function correctly. The number of calories you need depends on your sex, age, and activity level. On average, a person needs about 2,000 calories a day to maintain their weight, but this will vary depending on individual factors. It is important to remember that the source of your calories matters, too. Some foods provide mainly calories and very little nutrition, and are known as "empty calories". These include soft drinks, cordials, biscuits, cakes, and confectionery, which are high in added sugars and calories.
When it comes to choosing healthy oils and fats, it is important to remember that some fats are essential to a healthy diet. Unsaturated fats, found in fish, avocado, nuts, and sunflower, soybean, canola, and olive oils, are considered healthier than saturated fats, which are found in fatty meat, butter, palm and coconut oil, cream, cheese, ghee, and lard. Trans fats, found in baked and fried foods, pre-packaged snacks, and cooking oils, should be avoided.
To incorporate more healthy oils and fats into your diet, try using olive oil, especially extra virgin olive oil, as it is the least processed type. Other healthy vegetable oils include canola, soy, corn, sunflower, and peanut oils. Avocados, nuts, and fatty fish like salmon are also good sources of healthy fats. When it comes to spreads, choose unsaturated options and consume them in small amounts. Remember that low-fat does not always mean healthy, and some fat in the diet is essential.
While saturated fats can be part of a healthy diet, they should be limited to less than 10% of your total energy intake, while trans fats should be limited to less than 1%. Swapping saturated fats for unsaturated fats can help lower cholesterol. Additionally, when choosing dairy products, opt for lower-fat options like milk and yoghurt, which provide the same amount of calcium and other nutrients as their full-fat counterparts but with fewer calories and less saturated fat.
In summary, choosing healthy oils and fats involves opting for unsaturated fats, found in plant-based oils, fish, avocado, and nuts, while limiting saturated fats and avoiding trans fats. This can help lower your risk of cardiovascular disease and improve your overall health. Remember to also watch your portion sizes and total calorie intake, as even healthy fats and oils can contribute to weight gain if consumed in excess.
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Drink water and avoid sugary drinks
Drinking water is essential for maintaining a nutritional diet. Water supports health and promotes hydration without adding extra calories to your diet. It is recommended to drink at least 6 to 8 glasses of water per day. While water is the best option, you can also drink coffee, tea, and unsweetened lower-fat milk to stay hydrated.
On the other hand, sugary drinks should be avoided as much as possible. Sugar-sweetened beverages, including energy drinks, fruit drinks, soft drinks, and flavoured coffees, contain high amounts of sugar and empty calories with little to no nutritional value. These empty calories can lead to weight gain and increase the risk of developing type 2 diabetes. Additionally, sugar-sweetened drinks have been linked to childhood obesity and tooth decay.
Fruit juice, even 100% fruit juice, should also be consumed sparingly. While it retains some of the vitamins and minerals of the fruit, it often has more sugar and less fibre. It is important to eat whole fruits instead of drinking fruit juice to get the full nutritional benefits.
If you find plain water boring, you can add a slice of lemon, lime, or orange to it for flavour. Additionally, herbal teas and infused water can provide variety without adding sugar or artificial sweeteners.
Overall, staying hydrated with water or other healthy alternatives is crucial for maintaining a nutritional diet and promoting overall health and well-being.
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Eat whole grains and limit refined grains
Eating a nutritionally balanced diet is about getting the right mix of nutrients, and the right number of calories, to promote health and wellbeing. A nutritionally balanced diet will include foods from the following groups: fruits, vegetables, dairy, grains, and protein.
Grains are an important part of a balanced diet, but it is important to choose the right types of grains. Whole grains are a healthier option than refined grains. Whole grain foods include whole grain bread and crackers, brown or wild rice, quinoa, oatmeal, and hulled barley. They are prepared using the entire grain, which means they contain fibre, protein, and B vitamins. These nutrients help to keep you feeling fuller for longer, and promote overall health.
Refined grains, such as white bread and pasta, are processed and stripped of many of these important nutrients. This means they are less healthy and can cause a spike in blood sugar levels. Eating whole grains instead of refined grains can help to regulate blood sugar levels and provide a good source of energy. Whole grains are also linked to a reduced risk of heart disease and type 2 diabetes.
However, it is important to note that some people may not be able to tolerate whole grains. For example, those with a gluten intolerance should avoid whole wheat flour. It is always important to consider individual dietary needs and requirements when making choices about what to eat.
To eat a nutritionally balanced diet, it is recommended that you fill a quarter of your plate with whole grain foods. This will ensure you get the right amount of nutrients and energy from this food group, while still allowing room for other important food groups.
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Get enough protein
Getting enough protein is essential for maintaining overall health and well-being. Proteins are the building blocks of our bodies, making up bones, cartilage, muscle, blood, skin, enzymes, hormones, and vitamins. They are essential for growth and development, and they repair and build cells and tissue.
The Recommended Dietary Allowance (RDA) for protein is 0.8 grams of protein per kilogram of body weight, or 0.36 grams per pound. This amount is the minimum required to meet your basic nutritional needs and avoid illness. For example, a person who weighs 75 kg (165 pounds) should aim for 60 grams of protein per day. It's important to note that your daily protein requirement is not fixed and can fluctuate depending on your physical activity level, age, and other factors such as pregnancy or breastfeeding.
To ensure you get enough protein, include a variety of protein-rich foods in your diet. Both plant-based and animal-based sources of protein are available. Animal sources include meat, chicken, fish, eggs, and dairy. Plant-based sources include beans, lentils, nuts, and tofu. Aim for 30-40 grams of protein at each meal to promote fullness and preserve muscle mass.
If you are unable to consume enough protein through your diet, consider adding protein boosters to your meals, such as starchy foods like pasta, egg noodles, or quinoa. You can also opt for high-protein snacks or drinks between meals, such as cheese and biscuits, falafel and hummus, or milkshakes and fruit juice-style drinks.
It is worth noting that while protein is essential, a high-protein diet that consists predominantly of red and processed meat is linked to an increased risk of cardiovascular disease and diabetes. Therefore, it is recommended to focus on plant-based proteins and a variety of protein sources, such as those found in a Mediterranean-style diet.
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Frequently asked questions
A nutritionally balanced diet is one that gives your body the nutrients it needs to function correctly. A balanced diet contains foods from the following groups: fruits, vegetables, dairy, grains, and protein.
Fill half your plate with fruits and vegetables at every meal and snack. Base meals on higher-fibre, starchy foods like potatoes, bread, rice, or pasta. Include some dairy or dairy alternatives, such as soya drinks. Eat beans, pulses, fish, eggs, meat, and other protein sources. Choose unsaturated oils and spreads, and consume them in small amounts. Drink plenty of fluids, at least 6 to 8 glasses per day, with water being the healthiest option.
Limit or avoid red and processed meat, such as bacon, ham, and sausages. Reduce your intake of saturated fats, found in fatty meats, butter, palm and coconut oil, cream, cheese, ghee, and lard. Avoid trans fats, found in baked and fried foods, pre-packaged snacks, frozen pizza, pies, cookies, biscuits, and wafers. Limit sugary drinks, including energy drinks, fruit juices, soft drinks, and flavoured coffees, as they provide little to no nutritional value and contribute to weight gain.
Eat at least three meals a day with snacks in between. Eating smaller meals more frequently can help prevent you from making unhealthy food choices when you become too hungry.
