The Six Categories of Nutrients

A diet rich in soy and whey protein, found in ...
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The six categories of nutrients

1. Carbohydrates Chemical substances in foods that consist of a single sugar molecule or multiples of sugar molecules in various forms. Sugar and fruit, starchy vegetables, and whole grain products are good dietary sources.

2. Proteins Chemical substances in foods that are made up of chains of amino acids. Animal products and dried beans are examples of protein sources.

3. Fats (Lipids) Components of food that are soluble in fat but not in water. They are more properly referred to as “lipids.” Most fats are composed of glycerol attached to three fatty acids. Oil, butter, sausage, and avocado are examples of rich sources of dietary fats.

4. Vitamins Thirteen specific chemical substances that perform specific functions in the body. Vitamins are present in many foods and are essential components of the diet. Vegetables, fruits, and grains are good sources of vitamins.

5. Minerals In the context of nutrition, minerals consist of 15 elements found in foods that perform particular functions in the body. Milk, dark, leafy vegetables, and meat are good sources of minerals.

6. Water An essential component of the diet provided by food and fluid.


Judith E. Brown. Nutrition Through the Life Cycle 3rd Edition.


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