One cup of milk supplies adolescents with approximately what percentage of their RDA for calcium?50%33%25%15%
Question
One cup of milk supplies adolescents with approximately what percentage of their RDA for calcium?
- 50%
- 33%
- 25%
- 15%
Solution
The Recommended Dietary Allowance (RDA) for calcium for adolescents aged 9-18 is 1300 mg per day. One cup of milk contains approximately 300 mg of calcium.
To find out what percentage of the RDA for calcium is supplied by one cup of milk, we can use the formula:
(Actual amount / Recommended amount) * 100%
Substituting the given values into the formula, we get:
(300 mg / 1300 mg) * 100% = 23.07%
So, one cup of milk supplies adolescents with approximately 23.07% of their RDA for calcium. This is closest to 25% among the given options.
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