NEWCASTLE, England, Nov. 23 (UPI) -- Half of British women lack vitamin A due to a genetic variation, scientists found.
Researchers at Newcastle University in England, led by Dr. Georg Lietz, found 47 percent of volunteer group of 62 women carried a genetic variation that prevented their bodies from effectively converting beta-carotene into vitamin A.
The findings suggest beta carotene may not be an effective substitute for vitamin A for women whose bodies are not able to make the conversion, Lietz said. Beta carotene has been suggested for pregnant women since a 1987 study linked too much vitamin A with certain birth defects.
"Worryingly, younger women are at particular risk," Lietz said in a statement. "The older generations tend to eat more eggs, milk and liver which are naturally rich in vitamin A, whereas the health-conscious youngsters on low-fat diets are relying heavily on the beta-carotene form of the nutrient."
The study findings were published in the Federation of American Societies for Experimental Biology Journal and were presented at the Hohenheim Nutrition Conference in Stuttgart, Germany.Deep, yellow fat on pasture raised animals indicative of high vitamin a content and overall health resulting from the animal eating what it's supposed to eat: grass and living where it's supposed to live: outside in the sunshine.Further reading on Vitamin A. Why you need it. Where to get it.
- Vitamin A Saga
- Some good information on the many roles vitamin a plays in our bodies.
- The Pioneering Reasearch of Dr. Weston A. Price: The Whole, Natural Food Diet
- Looking for sources of the good stuff? There's a lot of vitamin a in pastured beef liver. A lot.
Tuesday, December 1, 2009
Why, I do declare, that bison is sticking his tongue out at me! Bison roaming the range, as it should be.
More reasons to eat those grass fed organ meats, pastured eggs, and butter. Vitamin a does not come from a vegetable, beta carotene does. Your body actually has to convert the beta carotene to vitamin a, a process that wanes as we age and, apparently, is genetically absent in almost half of women (I would wager it the same in men and children).