Section 1
Nutrition
Book
Version 29
By Boundless
By Boundless
Boundless Anatomy and Physiology
Physiology
by Boundless
5 concepts
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Digestive Systems
Animals use the organs of their digestive systems to extract important nutrients from food they consume, which can later be absorbed.
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Carbohydrates: Sources, Uses in the Body, and Dietary Requirements
Carbohydrates, which break down to glucose, are a major source of energy for humans, but are not an essential nutrient.
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Lipids: Sources, Uses in the Body, and Dietary Requirements
Fats store energy, facilitate absorption of fat-soluble vitamins, aid brain growth and development, and protect against many diseases.
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Proteins: Sources, Uses in the Body, and Dietary Requirements
Proteins are composed of 20 different amino acids, about half of which are essential, meaning they must be obtained from the diet.
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Food Requirements and Essential Nutrients
Essential nutrients are those that cannot be created by an animal's metabolism and need to be obtained from the diet.