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Nutrition Concept and Controversies > Minerals > Flashcards

Flashcards in Minerals Deck (15)
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1

Where do we get minerals from?

plants, water, indirectly from plants through animals, eating wide variety of foods

2

What do minerals function as?

essential for bone and teeth, fluid balance, blood clotting

3

what do some minerals act as?

electrolytes

4

Which is the determinant of extracellular fluid volume?

sodium

5

What can you change in your life besides altering sodium and potassium to reduce blood pressure?

weight loss, DASH diet, physical activity, moderation of alcohol consumption

6

Where does most of the sodium in our diet come from?

it comes from the added salt during processing of foods

7

Do salty foods always taste salty?

no

8

What did the IOM find when they reviewed the evidence to determine if there was evidence to support lower than 2300 mg/d intake levels?

they concluded that 2300 mg/d for the general public is fine, but not for those with hypertension or diabetes. The

9

Did the IOM find that the data supported a positive relationship between high intakes of sodium and CVD?

yes they did and it was consistent with evidence on blood pressure

10

How much energy is needed for the sodium potassium pump?

20-40% of the resting energy expenditure for a normal adult!

11

How are potassium and sodium
related?

An increased intake of one mineral will result in an increased excretion of the other mineral.

12

How is vitamin D involved in calcium and phosphorus regulation?

Needed for bone mineralization
Stimulates intestinal absorption of calcium
With parathyroid hormone (PTH), activated osteoclasts to mobilized calcium from bone
With PTH, reabsorb calcium in the kidneys

13

What are Phytates?

considered an "anti-nutrient", storage form of phosphorus in plants

14

Why can we not get phosphate from phytates?

humans lack the enzymes

15

What is the relationship between phosphorus and all cause mortality?

Higher phosphorus intake was associated with higher all cause mortality
Higher phosphorus density was associated with higher all cause mortality