Nutrition Exam 4

absorbed like fats, first into the lymph and then into the blood

Must travel with protein carriers in watery body fluids; stored in the liver or fatty tissue

Not readily excreted; tend to build up in the tissues

toxicities are more likely fro supplements but occur rarely in food

needed in periodic doses (perhaps weeks or even months) because the body can draw on its stores

absorbed directly into the blood

travel freely in watery fluids; most are not stored in the body

readily excreted in the urine

toxicities are unlikely but possible with high doses from supplements

needed in frequent doses (perhaps one to three days) because the body does not store most of them to an extent

fat (1)

fat (2)

fat (3)

fat (4)

water (1)

water (2)

beta-carotene

retinol

animals, plants

500-3000 micrograms a day

calcitriol

sunlight synthesis, milk/dairy, fortified products

15 micrograms daily

tocopherol

anything w or made from oil (mayo, seeds, wheat germ also)

15 mg

phylloquinone (green plants) and menaquinone (bacterially synthesized)

intestinal bacteria and dark leafy green veggies

120 micrograms (men) and 90 micrograms (women)

ascorbic acid

fruits and vegetables (and white potatoes)

90mg (men) 75mg (women) [smokers add 35]