BPK 110 Chapter Notes - Chapter 9: Retinol, Retinoid, Carotenosis

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 110
• Professor: Leah Esplen

Document Summary

Carotenodermia: the harmless yellow-orange to the skin due to high levels. Kin 110 chapter 9 fat soluble vitamins of carotenoid-rich food, such as carrot. Role in antooxidants, bone health, coenzymes, vision and blood. Needed in small amounts, not an energy source, chemical regulation, individual units rather than long chains, organic. Fat-soluble vitamins: a, d, e, k: intestinal cells absorb fat-soluble vitamins along with dietary fat, lipoprotein carry fat-soluble vitamins through the lymph and blood, liver picks up and stores the vitamins for future. Water-soluble vitamins: b, c: dissolves in water, travels directly into the bloodstream, kidneys filter excess and excretes it. Fat-soluble vitamins accumulate in the liver and adipose tissues. Excessive intake of vitamin a or d causes toxic effects. Little too much vitamin is ok (100-150%), but mega dosages is toxic. Fat-soluble vitamins pose a greater risk of toxicity because they are stored for long periods of time.