NTR 109
Week Six - Ten
Vitamins and Phytochemicals
Vitamins
Essential organic substances
Produce deficiency symptoms when missing from diet
Yield no energy
Basic functions:
Facilitate energy-yielding chemical reactions
Function as co-enzymes
Fat-soluble vitamins
A, D, E and K
Absorbed with fat
Transported by protein carriers
Stored in large amounts in liver and fatty tissues
More time to become deficient
Highly toxic—especially Vitamin D and A
Dissolve in lipids or solvents
Water-soluble vitamins…
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