Thursday, June 10, 2010

A reader asks

A reader asked about an article he read: "I read this and it angers me. Please correct me if I am wrong since I am just learning. But relying on dairy for our vitamin D these days is just silly."

No you are correct. She is correct when she says that milk is the #1 source of D in our diets because it is. The statement is correct even though she doesn't say it's not enough. Milk is a wonderful source of calcium and we can reasonably get enough from it. The problem lies with the recommended daily allowance for vitamin D. The govt is slow in raising it even though we now know that 4000IU or more a day is probably what a lot of us need. That is 10 times the current RDA!!!

The govt doesn't seem to know much about vitamin D and hasn't since milk was fortified years ago Under FD Roosevelt but with only enough to prevent rickets in children. They still have no idea about how much we really need to be healthy. Then there is the fear about toxicity. If you take 500,000IU in one dose, you would not get toxicity. If you take 500,000 every day for 6 months, you might have a problem.

Think of your vitamin D like a gas tank. Once it's depleted, OTC doses are only going to maintain the current low level. The doc cranks you up with 50 thousand IU once a week for 6 or 8 weeks just to get the tank level up. Then you've got to experiment to figure out how much you need to take daily to maintain the level. That's why you need to work with your doctor and get the blood checks. If your level drops drastically, the only way to refill it is prescription doses over a period of time.

Wait til you see the latest article I found. Over the counter D3 supplements may not contain the amounts listed on the label. I only found 1 study so far though. The vitamin industry isn't regulated the way drugs are. Prices would skyrocket if they were. No wonder I run into stories of folks having difficulty reaching and maintaining the proper blood serum level. For me, I think it is best to combine what I get from diet, reasonable sun exposure and supplements. Also why it's important to have regular blood screens for D level. Really the only way to know if you're getting enough.

1 comment:

  1. Sunshine Sara, you are so well versed on Vitamin D.. keep up the informative posts