Vitamin D Supplements
Your skin can produce more vitamin D from 10-15 minutes of direct sunshine than you can ingest by drinking 50 glasses of milk! Our bodies cannot manufacture it without sun exposure. But what if you spend little time outdoors, use sunscreen or are older, when our skin becomes less able to manufacture this critical vitamin? Fortified cereals, milk and other off-the-shelf fortified foods are one answer. But when a vitamin important to bone and muscle health, immunity, diabetes and cancer is involved, one should consider a daily supplement. According to a recent study of 1,881 women over age 20 published in Obstetrics & Gynecology, low blood concentrations contribute to urinary incontinence in women. In regions north of 40 degrees latitude (New York City to northern California), the sun is strong enough to trigger D production only from May-September, and sunscreen inhibits much of this beneficial effect. According to the Food and Nutrition Board at the Institute of Medicine at the National Academies (U.S.), the following are recommended International Units (IU) daily intake for healthy people.
| Age | Children | Men | Women | Pregnancy | Lactating | | Birth to 13 years | 200 IU | | | | | | 14-18 years | | 200 IU | 200 IU | 200 IU | 200 IU | | 19-50 years | | 200 IU | 200 IU | 200 IU | 200 IU | | 51-70 years | | 400 IU | 400 IU | | | | 71+ years | | 600 IU | 600 IU | | |
Return From Vitamin D to Anti-aging Supplements

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