Cancer. 2014 Feb 15;120(4):521-9. doi: 10.1002/cncr.28368. Epub 2013 Oct 25. Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
WWW.NCBI.NLM.NIH.GOV|BY LEE HJ , ET AL.
Vitamin D3 is a molecule (Cholecalciferol). It's the EXACT SAME molecule (Cholecalciferol) that is made by the human body.
Vitamin D3 is a molecule (Cholecalciferol). It's the EXACT SAME molecule (Cholecalciferol) that is sold in vitamin D3 bottles at the store..
Vitamin D3 is a molecule (Cholecalciferol). It's the EXACT SAME molecule (Cholecalciferol) that is in fish and FISH LIVERS.
There is no such thing as synthetic D3 (Cholecalciferol)
Cod liver oil is a rich source of vitamin D3 (Cholecalciferol) that is NOT MADE BY THE HUMAN BODY.
The NATURAL vitamin D in cod liver oil is vitamin D3 (Cholecalciferol).
Cod liver oil is used by many as a vitamin D3 supplement.
Here's a quote from the link:
"The key is having the proper ratio of vitamin D to vitamin A in your body. To obtain this proper D/A ratio, you must make a choice. (1) Either obtain the D/A ratio Nature intended—that is, the ratio the human genome evolved on—or (2) assume one knows better and intervene in a closed system, bypass the controls in the intestine, and inject active A directly into your blood by taking vitamin A or cod liver oil. Vitamin A production is tightly controlled in the body, the source (substrate) being carotenoids from vegetables in your intestine. The body uses these carotenoid substrates to make exactly the right amount of retinol for your body. That is, it is a closed, tightly regulated, system, one designed to perfection by Nature. When you take vitamin A as retinol, such as in cod liver oil, you intervene in this closed system and bypass the controls. Proceed at your peril." (End of quote)
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What are some of the reasons for chronic vitamin D3 deficiencies?
To get vitamin D3 from the sun (my favorite method), it has to be a certain time of year or day, the sun has to be in a certain angle, there can be no cloud cover, you have to have a certain amount of skin exposed etc. If these conditions are not met, your body cannot make vitamin D3 from sunlight. It's not uncommon for folks living in states with a good distance from the equator, with lots of cloud cover, air pollution, and long winters, not to be able to make vitamin D3 from the sun. Folks can literally go almost the whole year and not be able to make vitamin D3. Well, that's NOT NATURAL EITHER. Even if their bodies' chemistries are perfect, they are not going to be make vitamin D3 from the sun. That is going to lead to chronic vitamin D3 deficiencies despite their ''perfect'' bodies' chemistries. WITHOUT the vitamin D3 supplementation of cod liver oil, their vitamin D3 deficiencies would be even WORSE. Vitamin D3 deficiencies are NOT NATURAL OR HEALTHY. Vitamin D3 deficiencies are not healthy shortterm or longterm.
The natural vitamin D in Cod liver oil is Vitamin D3.
Quote from the link:
"What forms of vitamin D are present in fish and fish livers?
It is obvious from what has been written above that both vitamin D2 and vitamin D3 are available for fish in their diet, but vitamin D2 is almost absent in fish. The only form of vitamin D that has been identified at significant levels in fish oils (both body and liver) is vitamin D3". (End of quote)
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Here are observations by a prominent medical doctor on high doses of vitamin D3 on thousands of patients, covering over twenty years.
Dr. Joe Prendergast is board-certified in internal medicine as well as endocrinology and metabolism. He graduated from Wayne State University in Detroit, Michigan, completed a fellowship in endocrinology and metabolism at Henry Ford Hospital in Detroit, and fulfilled his research fellowship at the University of California, San Francisco. He has served on many prestigious local and national committees and review panels including the American Board of Internal Medicine, the State of California Legislative Task Force on Diabetes and Obesity, and the American Association of Clinical Endocrinologists. Among his many positions, Dr. Joe has served as an Associate Clinical Professor of the Department of Medicine at the University of California Medical Center and is currently a staff physician at Stanford.
Dr Joe Prendergas stated that the observations on heavy vitamin D3 supplementation, over long periods of time, were beyond amazing with no toxic side effects.
Some more AMAZING observations on healthy D3 levels by Dr Joe Prendergast.
Again, my focus is only on healthy D3 blood levels.
I'm not concerned about D3 supplementation.
If you want to use the sun to get your D3 levels up to a healthy range, that's fine.
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