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Vitamin D needs vary by gender and age, but most adult women need 14 to 70 micrograms or 600 IU of vitamin D a day, according to Johns Hopkins Medicine. (That number stays the same when you’re ...
Here’s what to know about vitamin D benefits and ... weakness in pre-menopausal women. Do I need a vitamin D supplement? ... up to age 70 is 600 IU and 800 IU for adults over 70, ...
Likely benefits include increased bone health, immunity, mental heath and more, according to Mayo Clinic. Vitamin D has more health benefits than previously known, study says. How can we get it?
This is contrary to what many calcium supplement manufacturers claim in their promotional materials. The studies of absorption of two most common salts, calcium carbonate and calcium citrate, show varied results. Both were found to be equally bioavailable in most vitamin D–sufficient postmenopausal women and when taken with a meal.
Adequate intake of calcium and vitamin D is essential for bone health. The National Osteoporosis Foundation recommends a daily calcium intake of 1,000 mg for men aged 50-70 and 1,200 mg for women aged 51 and older and men aged 71 and older. For vitamin D, a daily intake of 800-1,000 IU is recommended for adults aged 50 and older. [36]
Unlike the other twelve vitamins, vitamin D is only conditionally essential - in a preindustrial society people had adequate exposure to sunlight and the vitamin was a hormone, as the primary natural source of vitamin D was the synthesis of cholecalciferol in the lower layers of the skin's epidermis, triggered by a photochemical reaction with ...
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