Chapter 4 Flashcards
Types of CHO
Simple CHO (sugars) and complex CHO or polysaccharides (fibre and starch)
Canadians should get ___% of energy from CHO
55
Daily fibre intake is ___g/day
25
Benifits of fiber
lower blood cholesterol, show glucose absorption, hold moisture in stools, yield small, fat like molecules the colon can use for energy, lower risk of heart disease and diabetes
How does CHO become sugars
Mouth digests through salivary amylase, small intestine digests by pancreatic amylase (starch turns into disaccharides) and enzymes (disaccharides turn into monosaccharides). Fiber travels unchanged into the colon. Glucose, fructose and galactose goes into the bloodstream to the liver, the liver converts galactose and fructose into glucose which is used as energy
Type 1 Diabetes:
When the pancreas does not produce insulin
Type 2 Diabetes:
When the pancreas produces insulin, but the cells stop accepting it
Glycemic effect in food is
the extent to which foods elevate blood glucose compared to a glucose solution (like white bread)
Lactose intolerance is caused by
insufficient lactase enzyme activity to digest lactose
Why are artificial sweeteners “calorie free”
because they are very much sweeter than sugar, so very little is used adding up to a percentage of a calorie