Because of spam, I personally moderate all comments left on my blog. However, because of health issues, I will not be able to do so in the future.

If you have a personal question about LI or any related topic you can send me an email at I will try to respond.

Otherwise, this blog is now a legacy site, meaning that I am not updating it any longer. The basic information about LI is still sound. However, product information and weblinks may be out of date.

In addition, my old website, Planet Lactose, has been taken down because of the age of the information. Unfortunately, that means links to the site on this blog will no longer work.

For quick offline reference, you can purchase Planet Lactose: The Best of the Blog as an ebook on or Almost 100,000 words on LI, allergies, milk products, milk-free products, and the genetics of intolerance, along with large helpings of the weirdness that is the Net.

Sunday, December 28, 2008

Everybody Needs More Vitamin D

Vitamin D is necessary for many reasons, not least because it helps the body absorb calcium better. I've been telling you You Need More Vitamin D with Your Calcium and that there are Vitamin D Deficiency Problems in Teens and Adults.

Now the American Academy of Pediatrics (AAP) has announced that it is doubling the amount of vitamin D it recommends for infants, children and adolescents.

The previous recommendation, issued in 2003, called for 200 IU per day beginning in the first two months of life.

The change in recommendation comes after reviewing new clinical trials on vitamin D and the historical precedence of safely giving 400 IU per day to the pediatric population. Clinical data show that 400 units of vitamin D a day will not only prevent rickets, but treat it. This bone-softening disease is preventable with adequate vitamin D, but dietary sources of vitamin D are limited, and it is difficult to determine a safe amount of sunlight exposure to synthesize vitamin D in a given individual. Rickets continues to be reported in the United States in infants and adolescents. The greatest risk for rickets is in exclusively breastfed infants who are not supplemented with 400 IU of vitamin D a day.

Adequate vitamin D throughout childhood may reduce the risk of osteoporosis. In adults, new evidence suggests that vitamin D plays a role in the immune system and may help prevent infections, autoimmune diseases, cancer and diabetes.

Adults may be higher recommendations as well, according to an article by Carol M. Bareuther on the Triton.
On the heels of the AAP’s announcement, the National Academy of Sciences’ Institute of Medicine (IOM) is set to review its recommendations for adults. Currently, adults up to age 50 should consume 200 IUs per day, adults aged between 51 and 70 should have an intake of 400 IUs, and adults aged 71 and over should consume 600 IUs.

I've noticed that major brands like Caltrate and the store brands that copy its lead have labels proclaiming "advanced levels of vitamin D" on its bottles of Calcium 600+D calcium supplement. That means 600 mg of calcium and 400 IU of vitamin D in each pill.

Be careful not to overdo the D. There are warnings associated with amounts of 2000 IU per day and over.

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1 comment:

LinC said...

When thinking about vitamin D supplements, don't forget that your body will manufacture D in response to sunlight. You need to cut back on supplements in the summer or when you are getting lots of sun on skin (ski season).

Nice blog!