ANP 201 Lecture Notes - Lecture 5: Vitamin A Deficiency, Subsistence Agriculture, Muscle Atrophy
Document Summary
Omnivorous: eat a wide range of both plants & animals. This enhances our access to the nutrients we need for function and survival, *humans adapt to diet (the kinds of foods we eat) and nutrition (the deriving of nutrients from those foods) *each body function requires a certain amount of energy and particular nutrients, and a lack of energy or nutrients can hamper body functions. *humans have dietary plasticity reflects humans" unique combination of biology and culture. *different ways to extract food resources from the environment. *inadequate intake of appropriate foods -> deficiency disease. *crops tend to be high in bulk & low in protein. *typically heavy reliance on a single cereal crop. Nutritional adaptation: 3 usages: the ability of the body to adapt to nutritional stress, behavioral or cultural practices. Pellagra (niacin deficiency) = a diet high in maize consumption. Beriberi (vb1 deficiency) = a diet high in milled/washed rice. *by efficiently utilizing nutrients or by altering metabolic activity.
