Food Types And Nutrients Are Part Of The Balanced Diet
To understand the human need for food, we must first consider what food is. Food is any material eaten to supply nutrition to the organisms. Food is consumed by man in his diet to satisfy his dietary requirements. Food is generally of vegetable, animal, or fungi origin, and includes necessary nutrients, including vitamins, proteins, carbohydrates, and minerals. There are four food groups, which are carbohydrates, proteins, vegetables, and fruits.
A food group is a group of nutrients and carbohydrates that together form the basis of the diet. The foods of each group contain varying proportions of these macronutrients. Carbohydrates are the main source of energy and fibre. The lack of fiber may lead to constipation, while the excess intake of carbohydrates can result in obesity.
A carbohydrate is a food that has one sugar molecule attached to it. Most plants have a limited ability to produce this sugar, which gives them their starch and glucose content. This is in fact the source of most carbohydrates available on the market today. When carbohydrates are digested they are converted to sugar resulting in energy. The majority of food groups to have a combination of both simple and complex carbohydrates.
One of the most important groups of food is meat. Meat is eaten for its protein content, as well as for the wide variety of nutrients it provides, ranging from minerals to vitamins. Lean meats are better for your health than meats that have been processed. Although all mammals produce protein, there are different sources of protein available to us based on what is available in nature, according to what animals have been fed and how they are raised.
It is important that we eat enough vitamin A, because this nutrient helps to protect us against vitamin A deficiency. Although many foods have beta-carotene, the best sources of this vitamin are tomatoes, carrots and liver, as these foods are high in provitamin A. Vitamin A protects the skin from damage and it is found in foods such as carrots, spinach and whole grain rice. For a healthy bone structure and a healthy nervous system, make sure you eat enough vitamin A.
Fruits and vegetables are an integral part of a balanced diet. They provide many of the necessary substances for good health, but only if they are eaten in the correct proportions. Too much of any one food can be detrimental and therefore, it is important that you include a variety of fruits and vegetables in your diet. There are many excellent books and websites that can help you identify the best kinds of fruits and vegetables and the corresponding food types.