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Nutrition
Nutrition, diet, calories and weight loss are hot topics, and there's a lot of conflicting information out there. The HowStuffWorks Nutrition Dictionary provides reliable information on all aspects of eating right and staying healthy, including concise definitions of vitamins, minerals and dietary supplements. Get nutrition facts and learn about dietary restrictions for medical conditions such as pregnancy, diabetes and kidney disease.
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Fiber is a substance found in plants. Dietary fiber -- the kind you eat -- is found in fruits, vegetables, and grains and is an important part of a healthy diet

Fats are organic compounds that are made up of carbon, hydrogen, and oxygen. They are a source of energy in foods. Fats belong to a group of substances called lipids, and come in liquid or solid form.

A balanced diet refers to intake of appropriate types and adequate amounts of foods and drinks to supply nutrition and energy for the maintenance of body cells, tissues, and organs, and to support normal growth and development.

Cholesterol is a soft, waxy substance found in all parts of the body. This includes the nervous system, skin, muscle, liver, intestines, and heart. It is made by the body and also obtained from animal products in the diet.

 
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