Exam - Vitamin D
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35 Terms
Where is Vitamin D activated in the body
liver and kidneys
why is vitamin D considered non essential
they body can synthesize all its needs
about how much sunlight can help the body make vitamin D
10 minutes
which group is at greater risk for vitamin D deficiency
people with dark skin
which group is also at risk for vitamin d deficiency
house bound elderly people
what happens to vitamin D in adipose (fat) tissue?
it is trapped/stored
what is one major role of vitamin D
regulating calcium
which body location acts as a reservoir for calcium
skeleton
how does vitamin D help the digestive tract
increases calcium absorption
What does Vitamin D help the kidneys do with calcium?
recycle it
vitamin D helps transport calcium
to and from the bone
what does vitamin d help maintain
bone integrity
what is rickets
child deficiency of vitamin D
which is a sign of rickets
bowed legs
what is osteomalacia
adult deficiency of vitamin D
osteomalacia can cause bones and joints to become
painful, soft, and weak
Osteoporosis involves
weakened bones
which two nutrients are especially important for preventing osteoporosis
Calcium and vitamin D
which can help prevent vitamin D deficiency
sunlight exposure and milk
vitamin 3 is considered one of the most potentially toxic vitamins because too much can?
increase blood calcium
excess vitamin D can cause calcium to be withdrawn from this
bones
high does of vitamin D can potentially contribute to
kidney and heart failure
which can be a symptom of high vitamin D doses
Nausea
high doses of vitamin D can cause
increased urination and thirst
Moderate doses of too much Vitamin D may increase risk of
falls and fractures
what types of rays from sunlight help the body make vitamin D
ultraviolet (UV) rays
what substance in the skin is transformed into a vitamin D Precursor by sunlight
cholesterol
which organ assist in converting the vitamin D precursor into vitamin D
liver and kidneys
compared with sunlight colored skin, dark colored skin generally requires
more sunlight to make vitamin D
which can interfere with vitamin D synthesis from sunlight
all of the above
what is the DRI for vitamin D for ages 1-70
15 micrograms/day
what is the UL for vitamin D
100 microgram/day
which is a good food source of vitamin D
milk fortified products
about how much of the daily vitamin D need can 3 cups of milk provide?
½ of the daily needs
Vegetarians can get vitamin D from
fortified foods and sunlight