Topic 8: Vitamins Flashcards
what is the function of vitamin A?
growth and development
keep throat, digestive system and lung lining moist free infection
keeps eyes healthy
helps with vision in dim light
what is the function of B12?
maintains the sheath that surrounds and protects nerve fibers and promotes their normal growth.
helps B12 to divide cells
What does vitamin A deficiency cause?
night blindness or permanent blindness
child not growing properly
weak immune system
liver and bone damage
What are the sources of retinol?
Animal sources: primarily dairy products and liver (cod liver oil, other fish oils, egg yolk)
what is another name for vitamin D?
cholecalciferol
what are the sources of vitamin E?
Vegetable oils (corn and safflower oils) green leafy vegetables and whole grains. (Found in many foods including polyunsaturated vegetable oils)
what are the sources of vitamin K?
green leafy vegetables, cheese, liver, coffee
what are the factors affecting vitamin C?
oxygen, water and enzymes
what is another name for vitamin B1?
Thiamine
what are the sources of vitamin B1?
wholegrain cereals, yeast, marmite, wheatgerm
what is the function of vitamin B1?
growth and general good health
breakdown of CHO foods
what does a deficiency of vitamin B1 cause?
Beriberi - failure to grow
nervous system damage, paralysis
what are the sources of vitamin B2?
lean meat, milk, eggs, yeast, liver
what does a deficiency of B2 cause?
tiredness, apathy, failure to grow
what are the sources of vitamin B3?
Wheat, nuts, meat and fish
what are the sources of vitamin B6?
wholegrain cereals, yeast, marmite, wheatgerm
what is the function of vitamin B6?
release energy of CHOs, alleviate stress
what is another name for vitamin B12?
Cyanocobalamin
what is the function of vitamin B12?
amino acid metabolism and other enzymes
what type of nutrients are vitamins?
micronutrients
what depends on the amount of vitamins we need?
age and life stage
What are the fat soluble vitamins?
A, D, E, K
what is another name for vitamin A?
retinol, beta-carotene
What is beta-carotene?
an antioxidant that protects against cancer
what are the sources of beta carotene?
Fruits and vegetables that are red, orange, yellow, and deep green
what is the function of vitamin D?
Works with calcium for healthy bones and teeth
what does a deficiency in vitamin D cause?
rickets in children and osteomalacia in adults
What are the sources of Vitamin D?
sunlight, egg yolk, fortified milk
what is another name for vitamin E?
Tocopherol
what is the function of vitamin E?
healthy cell walls and blood, reduce risk of developing heart disease, cancer
what is the function of vitamin K?
blood clotting
What are the water soluble vitamins?
B vitamins and vitamin C
what is another name for vitamin B2?
Riboflavin
what are the functions of B2?
obtain energy from food
what is another name of vitamin B3?
Niacin
what is the function of vitamin B3?
release energy from CHOs
what is another name for vitamin B6?
Pyridoxine
what are the sources of vitamin B12?
animal products
what does a deficiency of B12 cause?
anemia megloblastic
what are the sources of folic acid?
offals, pulses, raw veg, bread
what is another name for vitamin C?
ascorbic acid
what are the sources of vitamin C?
Citrus fruits, tomatoes, potatoes
what is the function of vitamin C?
collagen synthesis, antioxidant, wound healing
what does a deficiency in vitamin C cause?
Scurvy
