IPHY 2420 Lecture Notes - Lecture 2: Vitamin B6, Collagen, Folic Acid
6 Mar 2016
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Document Summary
A compound that is not made (or produced enough) in the body: essential. Causes deficiency disorders that can be treated by supplying missing substances. Natural sources: plants, animals, fungi, bacteria: vitamin e better natural. Synthetic: made in labs by microbes: folic acid has greater activity than natural. Associated w/ lipids in foods and body. Do not dissolve in water or urine, stored in body and may be toxic. Dissolve in water or urine, excreted in urine. Issue of deficiency since easily lost, generally nontoxic. May: have hormonal action, participate in chemical reactions, regulate body processes (cell division/ development, growth/maintenance of tissues) Addition of specific amounts of thiamin, riboflavin, niacin, folic acid, and the mineral iron to refined flour and milled grains (b vitamins and iron: these are lost during refinement. Addition of nutrients to commonly eaten processed foods: iodine added to salt to prevent goiter, vitamin d in milk.
