NUTR 250 Lecture Notes - Lecture 19: Spinach, Dermatitis, Dementia
Document Summary
60-65% absorbed by active transport or facilitated diffusion. Excreted in urine and gives it yellow color. Absorbed in stomach and small intestine by active and passive diffusion. Absorption, transport, storage, and excretion of pantothenic acid. Headache, fatigue, impaired muscle coordination, gi upset. It"s released from lysine and absorbed by sodium-dependent transport. Rda: between 1. 3-1. 3 mg/day depending on age and gender. Absorption, transport, storage, and excretion of vitamin b-6. Susceptible to heat, oxidation, and uv light. 50-90% is destroyed in processing and preparation. Dietary folate equivalents (dfe): different absorption of food folate and synthetic folic acid. 1 dfe = 1 mog food folate. First affects cells with short lifespan and rapid turnover rate. Red blood cells remain large and immature. Mouth sores, abnormal liver function, low absorption. Folate is critical for neural tube development. Humans get it from animal foods and some fermented foods. Absorption, transport, storage, and excretion of vitamin b-12.