carbohydrates Flashcards
whole grain vs refined grains
whole grain = all grain start as a whole kernel, which includes the bran,the germ and the endosperm
refined grains= processed to remove parts containing fibre, some vitamines, minerals and phytochemical
negative health consequences of too much carbohydrates ?
-weight gain
-increase dental caries
- some chronic disease
-loss of high-fibre food benefits
how much CHO do i need ?
according to the AMDR 45 - 65%
according to RDA 130g/day
AI for fibre = 38g/day for men, 25g/day for women
athletes AMDR can increase to 70-75% fue ti increase needs for endurance schedule
three most common monosaccharides ?
glucose = one of the main sources of calories
-can cross blood-brain barrier
fructose= commonly found in honey, fruits and root vegetable
galactose=known as milk sugar
disacggarides
2 singles units joined together
lactose= glucose+galactose;also called milk sugar
maltose= glucose+glucose
sucrose= glucose+fructose; found in sugar cane, honey
food that contain simple and complex CHO
simples CHO found naturally
-fruit
-milk-based products
-white sugar, brown sugar
-molasses,honey,maple syrup
processed food
-pies,cookies,cakes
-soft drinks, energy frinks
complex CHO found naturally
-grains
-whole grains
-cereal
-legumes, black beans
-nuts , seeds
-fruit
about sugars
naturally-occurring sugar= is the sugar found naturally within foods
free sugar= is the sugar no longer naturally-occurring state
added-sugar= is the free sugar that has been added to foods
total sugar=is a combination of free sugar and natural-occurring sugar
sweeteners= are food additives that are used to give products a sweet taste
how much added sufar should we consume ?
just 5%
benefits of fibre ?
- Fiber slow down the absorption for simple sugar which can help maintain health blood glucose levels
-provided prebiotic
-may decrease risk of colon cancer
grams of fibre per day of mens and womens
for mens are 38g for women are 25g
what is a simple CHO vs Complex CHO ?
Simple carbohydrates are sugar with little ring-shaped molecules made of carbon, hydrogen and oxygen
monosaccharides=single molecule/unit
-glucose
-fructose
-galactose
disaccharide= 2 singles units/molecule
-lactose
-maltose
-sucrose
complex Carbohydrates are formed when these rings link up together to make long chains
different types of fiber?
Soluble fiber = dissolve in water
-helps to lower cholesterol
find in oats,legumes,barley
-broccoli, carrots, apples, pears, oranges, bananas
insoluble fiber= hold into water
find in skins of fruits and vegetables
nuts and seeds
do you think its beneficial to decrease all simple sugars ? why ?
how is blood glucose regulated in our body ?
insulin and glucagon work together in balance of blood sugar , glucagon breaks down glycogen to glucose in the liver , insulin enables blood glucose to enter cells where they use it to produce energy
different types of diabetes ?
diabetes 1= when your body doesnt produce enough or non insulin , so the levels of glucose in the blood gets too higher
diabete 2= when your body have higher levels of insulin and glucose