Posted on 02/23/2011 9:03:31 AM PST by decimon
With most people unable to get enough vitamin D from sunlight or foods, scientists are suggesting that a new vitamin D-fortified food — bread made with high-vitamin D yeast — could fill that gap. Their study, confirming that the approach works in laboratory tests, appears in ACS' Journal of Agricultural and Food Chemistry.
Connie Weaver and colleagues cite studies suggesting that up to 7 in 10 people in the United States may not get enough vitamin D, which enables the body to absorb calcium. Far from just contributing to healthy bones, however, vitamin D seems to have body-wide beneficial effects. Vitamin D insufficiency has been linked to an increased risk of heart disease, cancer, allergy in children, and other conditions. With few good natural sources of vitamin D, milk producers long have added it to milk. Weaver explains, however, that dairy products do not provide enough. The body makes its own vitamin D when the skin is exposed to sunlight. But people are not exposed to sun in winter and are avoiding the sun and using sun blocks in summer. Scientists thus have been looking for new ways to add vitamin D to the diet.
Weaver's group did experiments with laboratory rats, a stand-in for humans in such research, that ease doubts over whether bread baked with high vitamin D yeast could be a solution. The doubts originated because yeast produces one form of the vitamin, termed vitamin D2, which has been thought to be not as biologically active as the form produced by sun, vitamin D3. They showed bread made with vitamin D2-rich yeast, fed to the laboratory rats, had effects that seemed just as beneficial as vitamin D3. "Our results suggest that bread made with high vitamin D yeast could be a valuable new source of vitamin D in the diet," they concluded.
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The authors acknowledge support from Lallemand/American Yeast.
ARTICLE FOR IMMEDIATE RELEASE "Bioavailability and Efficacy of Vitamin D2 from UV-Irradiated Yeast in Growing, Vitamin D-Deficient Rats"
DOWNLOAD FULL TEXT ARTICLE http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/jf104679c
CONTACT: Connie Weaver, Ph.D. Department of Foods & Nutrition Purdue University West Lafayette, Ind. 47907 Phone: (765) 494-8237 Fax: (765) 494-0674 Email: weavercm@purdue.edu
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R2 D2?
D-3 is the best. We have been taking 4,000 units per day for the past year and we have felt a lot better and have not gotten sick.
C3PO?
C3PO?
One of the FReepers turned us on to D3 chewies from Walmart.
We have not been sick since.
what is D3 and where can I get it?
When I was younger i drank a ton of milk and always felt grea- i stopped between ages 30 and 40 and felt like crapo
I started drinkig it latel and feel great (and not that pukey skim milk- 2% or the whole thing- it curbs your appetite big time so you do NOT get fat from drinking it)
Tanning booths in the winter, and supplements. Of course, 0bummer taxes tanning booths, a racist policy if ever there was one.
You can get D3 at Walmart-—and it’s cheap! I take 5000 daily.
That’s 5000 IUs daily-—not pills! LOL!
LOL
thats alot of vitamin d. if you are low, you usually need about 50k units a week to creep up.
thats alot of vitamin d. if you are low, you usually need about 50k units a week to creep up.
thats alot of vitamin d. if you are low, you usually need about 50k units a week to creep up.
Yeah, I've been asking that very question for so long now. And people just give me funny looks. Go figure.
I’ve been taking 4000 units of Vitamin D3, mixed with calcium citrate. I cut back the D3 a bit in the summer months, when it’s short sleeve weather. But I believe the body gets rid of excess D3 anyway.
But it’s certainly important to take it in the winter, or if it is overcast for any length of time.
Not a recommendation, but I find the cheapest source is usually on-line, at Vitacost.
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