Nutrition principles as applied to Ca Flashcards
what is nutrient requirement
universal absolute requirment
what is requirment
individual amount that each of us needs - will vary
what is recc. daily intake **
amount that will satisfy all but those in the 2 SD mean above (97.5%)
what does eating below the RDA mean?
not neccesarily meaning you are insufficiant
4 purposes of dietary standards
- assist in planning diets
- aid in assessing adqeuate diet
- aid in planning food supplies
- serve as scentific basis for public health
what are 2 methods for determining requirments
- experimental - measure in and out
2. epidemiological
what does RDA not work for
calories
what is estimated energy requirement
caloric intake needed - should hit 50% of pop
what is target for healthy person
RDA
what is target for malnourished person
RDA for their ideal body weight
what is target in disease
modify according to metabolic need
3 methods of nutritional assessment
- biochem. - test for all the stuff
- clinical - subject observation - fat, Hx,
- anthropomorphic - BMI, skinfold, waist circumferance
what happens in too much protein
Ca goes down
what happens in menopause
need more Ca
do supplements reverse osteo?
no
major source of Ca
west - dairy
other - not sure
3 types of vit D and their source
- D3 - cholecalciferol - animal - inert
- D2 - ergo calciferol - plant - inert
- 1,25 dehyroxy - calcitrol - active form
what is vit D RDA
600 IU except over 70 - 800
3 consequences of low vit D
- low Ca absorb
- high PTH
- low bone mineral density
what was found in women’ health initiative
- no significant prevention of hip fracture
- slight increase in stone
- modest protection of bone density
4 cancers linked to low vit D
- breast
- prostate
- colon
- ovary
what is potential risk with Ca supplement
MI
