BIO 111 Lecture Notes - Lecture 8: Dental Caries, Phospholipid, Xylitol
24 Dec 2020
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Food and nutrition board- 45-65% of calories. Nutrition fact panel- 60% of calories, this would be 300 grams/day for someone consuming 2000 calories/day. 2005 dietary guidelines- choose fiber-rich fruits, vegetables, and whole grains. 3 or more oz. equivalence from grains group should be from whole grains. Who- added sugar should provide no more than 10% of calories. Main problems with too much sugar are that it provides empty calories and dental caries. Sugar alcohol- sorbitol, xylitol (sugar in gum) Much sweeter on a per gram basis. Not a single substance, but a group of substance together termed dietary fiber. Group has similar characteristics- mostly made up of indigestible plant polysaccharides. We do not have the digestive enzymes to break the chemical bonds that hold these polysaccharides together (e. g. : cellulose) Most food labels don"t separate insoluble and soluble fiber. The definition of fiber has been expanded to include fiber added to a food product- functional fiber.
