Flashcards in Dietary Calcium Deck (26):
You require at least __________ per day.
What mineral is in bone?
Calcium is absorbed by two ways: ___________________.
- passive absorption (simple diffusion through or around cell)
- active absorption (pumps dependent on ATP)
Vitamin D binds to _________________.
nuclear transcription factors to upregulate the expression of the active absorption proteins
What nutritional things enhance the absorption of calcium?
Lactose, acidity, and protein
What things impair calcium absorption?
Vitamin D deficiency and steatorrhea
What nutritional things impair the absorption of calcium?
Alkalinity, oxalic acid, phytic acid, and caffeine
Most of the fetal calcium is taken up in the ______________.
third trimester (80%), meaning kids born prematurely will likely be calcium-deficient
The Framingham study followed ________________.
kids from age 3 to 13
What did the Framingham study show?
Kids with high dairy and meat intake had the highest bone mineral content.
Research has shown that girls can have as much as ___________ mg of calcium deposition per day.
What happens to calcium absorption during pregnancy?
Other than milk, what foods are helpful in attaining calcium?
Calcium __________ is best absorbed with meals, whlie calcium ____________ is best absorbed between meals.
What four groups are most at risk of being calcium/vitamin D deficient?
Post-bariatric surgical patients
Active calcium absorption occurs in the _______________, while passive absorption occurs in ____________.
duodenum; the entire small intestine
BMC is primarily controlled by ___________.
The DASH diet was found to decrease ________________.
In addition to increasing GI absorption of calcium, vitamin D also ______________.
decreases urinary excretion
Under decreased intake or increased need, calcium absorption can increase up to ______.
What happens to the bones during lactation?
Some bone mass is lost, but the lost amount is typically regained after weaning.
What is the RDA range for calcium?
700 mg (toddlers) to 1,300 mg (adolescents) per day
True or false: the daily recommended intake increases during pregnancy.
False. The body can compensate.
Which race/ethnicity has the highest rate of osteoporosis?
The best predictor of BMD is ______.