FSN 101 Lecture Notes - Lecture 11: Carnitine, Neural Tube Defect, Phospholipid
16 Nov 2016
School
Department
Course
Professor
Document Summary
Produce deficiency symptoms when missing from diet. Basic functions: facilitate energy-yielding chemical reactions, function as co-enzymes. Types of vitamins: fat-soluble vitamins, water-soluble vitamins. Megadose: proved useful in treating certain conditions. Most synthesized vitamins work equally well in the body. Scientists believe they have discovered all the vitamins. Fat-soluble: not readily excreted (except vitamin k) Water-soluble: generally lost from the body (except b-12, excreted via urine. Vitamins should be consumed daily: occasional lapse is harmless. Fat-soluble vitamins: can accumulate in the body, don"t need to consume every day. Water-soluble vitamins: some can cause toxicity, should consume every day, but okay to miss occasionally. Most likely due to supplementation: vitamin pills, highly fortified foods. Decreased vitamin content: improper storage, excessive cooking, exposure to light, heat, air, water, and alkalinity. Freeze foods not consumed within a few days. Blanching destroys enzymes: slows down vitamin degradation. Preformed: retinoid (retinol, retinal, and retinoic acid, found in animal products. Prevent drying of the skin and eyes.
