Friday, January 18

In Search of Vitamin D . . .

1. Vitamin D is imperative for it's role in the absorption of calcium. No vitamin D = no calcium absorption = osteoporosis.
2. Vitamin D helps to fight against cancers and diabetes.
3. More than 40 percent of American adults do not have enough vitamin D in their bodies.
4. Reduced sunlight and reduced vitamin D contribute to depression.
5. Foods fortified in vitamin D, such as milk, do not provide the necessary amounts needed. You'd have to drink ten tall glasses of milk to get enough vitamin D.

6. People with naturally dark skin need 20-30 times as much exposure to sunlight for their bodies to produce adequate vitamin D.

7. It is impossible for your body to get too much vitamin D from the sun. It will regulate itself, so head on outside for some free vitamin D!


Anonymous said...

Interesting that it is the Vitamin D we need to prevent the osteoporosis - and the calcium is only secondary. And here we have been worrying about the calcium levels for so long.
Good info, Hannah!

TedHutchinson said...

While I did find the photos charming I hope no one concludes that sun exposure in winter, when shadows are longer than you are tall, will provide any Vitamin D.
Yes it is good to be out in the bright light and getting plenty of exercise is good for everyone but unfortunately the UVB rays in winter have too much atmospheric pollution to get through when the angle of the sun is so low in winter.
Really everyone above latitude 35 needs to use Cholecalciferol Vitamin D3 from October through to March. 1000iu/daily is fine for children (2000iu is a safe upper amount for them) and 2000iu/daily should be sufficient for most adults though those with a long term condition may be better advised to take 4000iu/daily. 10,000iu/daily is the safe upper amount for adults.
See Risk assessment for vitamin D
The Vitamin D Council have good research based information on Vitamin D.

Me said...

Thanks, Mom (Dianna) for the tips of vitamin D you gave me yesterday!

Mr. Hutchinson, thank you for the interesting information. Researching the subject on the internet did reaffirm that the wavelengths of radiation that produce sunburn are the same ones necessary to allow the body to produce vitamin D. It's not unheard of to get a sunburn in central NY in the winter with exposure. Also, I noticed that advanced age makes it more difficult for the body to absorb the necessary Vitamin D.
The good news is:..."According to Dr. Michael Holick, as little as 5-10 minutes of sun exposure on arms and legs or face and arms three times weekly between 11:00 am and 2:00 pm during the spring, summer, and fall at 42 degrees latitude should provide a light-skinned individual with adequate vitamin D and allow for storage of any excess for use during the winter with minimal risk of skin damage." -

We do not depend on only the sun for our family's vitamin D, but what a wonderful blessing it was to be out of doors, with the sun pouring down on us!
Remember, sunlight also provides the spectrum of light needed to combat seasonal depression!

Melissa said...

I love this post! A friend and I were talking yesterday after church in the church yard about Vitamin D. The 70 degree weather yesterday certainly made it wonderful to be outside. Thank you for showing your beautiful children and pictures! It's good to see how active a family is outside, the way every family should be! Thanks for your family's example!

Melissa :D