Daily Values (DV) are standardized measures developed by the
U.S. Food and Drug Administration (FDA) to help people learn the amount of
specific nutrients contained in foods. The DV also allows you to compare the
nutrients in one food product to another.
The percent DV helps you determine whether a food is high or
low in a nutrient. In general, 5% DV or less is low in a nutrient, while 20% DV
or more is high. Daily Values are printed on the “Nutrition Facts” panel on
food labels. The percent DV is based on one serving of food. Be sure to read
the label carefully to learn the serving size and the number of servings.
The DV for calcium is based on 1,000 mg. This means a
serving of milk with a Daily Value of 30% calcium has 300 mg of calcium.
In the case of vitamin D, the DV is based on 400 IU for
adults. This means a food serving with a Daily Value of 25% vitamin D has 100
IU of vitamin D. There are few food sources for vitamin D. So, unless an item
has been fortified with vitamin D, most food labels do not list the percent of
the DV of vitamin D.
NOF recommends that adults age 50 and older get 1,200 mg of
calcium every day, and adults under age 50 get 1,000 mg of calcium every day.
Often, a balanced diet can include up to 250 mg of calcium from trace sources
that are difficult to count, such as broccoli and certain green vegetables.
Getting enough vitamin D every day is important to help your
body absorb calcium. Adults age 50 and older need 800-1,000 IU of vitamin D
every day, and adults under age 50 need 400-800 IU of vitamin D every day.
Older individuals and those with osteoporosis may need more.
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