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ok Iko.. My blood tests=vitamin "D" test came back at 12 WHICH she said was very very low.. supplements have been added 1 a week at 1.25mg for a 12 weeks. Only she said it shouldn't be that low while I am taking huge doses of omega 3 Vitamin. "D" and my thyroid screwed up now taking 175mcg levoxyl instead 150.Feel like crap and hurt everywhere specially in my bones etc...
WELL THAT WOULD HAVE BEEN GOOD lol... WHAT THE HECK IS A LIVER FISH? LOL...
Quote from: iko on 16/04/2010 17:25:46A promise is a promise... []so here you find D-vitamin safety limits: Risk assessment for vitamin D. Hathcock JN, Shao A, Vieth R, Heaney R.Council for Responsible Nutrition, Washington, DC 20036-5114, USA. jhathcock@crnusa.orgThe objective of this review was to apply the risk assessment methodology used by the Food and Nutrition Board (FNB) to derive a revised safe Tolerable Upper Intake Level (UL) for vitamin D. New data continue to emerge regarding the health benefits of vitamin D beyond its role in bone. The intakes associated with those benefits suggest a need for levels of supplementation, food fortification, or both that are higher than current levels. A prevailing concern exists, however, regarding the potential for toxicity related to excessive vitamin D intakes. The UL established by the FNB for vitamin D (50 microg, or 2000 IU) is not based on current evidence and is viewed by many as being too restrictive, thus curtailing research, commercial development, and optimization of nutritional policy. Human clinical trial data published subsequent to the establishment of the FNB vitamin D UL published in 1997 support a significantly higher UL. We present a risk assessment based on relevant, well-designed human clinical trials of vitamin D.Collectively, the absence of toxicity in trials conducted in healthy adults that used vitamin D dose > or = 250 microg/d (10,000 IU vitamin D3) supports the confident selection of this value as the UL.Am J Clin Nutr. 2007 Jan;85(1):6-18.Free full text to enjoy real Science! http://www.ajcn.org/cgi/reprint/85/1/6
A promise is a promise... []so here you find D-vitamin safety limits: Risk assessment for vitamin D. Hathcock JN, Shao A, Vieth R, Heaney R.Council for Responsible Nutrition, Washington, DC 20036-5114, USA. jhathcock@crnusa.orgThe objective of this review was to apply the risk assessment methodology used by the Food and Nutrition Board (FNB) to derive a revised safe Tolerable Upper Intake Level (UL) for vitamin D. New data continue to emerge regarding the health benefits of vitamin D beyond its role in bone. The intakes associated with those benefits suggest a need for levels of supplementation, food fortification, or both that are higher than current levels. A prevailing concern exists, however, regarding the potential for toxicity related to excessive vitamin D intakes. The UL established by the FNB for vitamin D (50 microg, or 2000 IU) is not based on current evidence and is viewed by many as being too restrictive, thus curtailing research, commercial development, and optimization of nutritional policy. Human clinical trial data published subsequent to the establishment of the FNB vitamin D UL published in 1997 support a significantly higher UL. We present a risk assessment based on relevant, well-designed human clinical trials of vitamin D.Collectively, the absence of toxicity in trials conducted in healthy adults that used vitamin D dose > or = 250 microg/d (10,000 IU vitamin D3) supports the confident selection of this value as the UL.Am J Clin Nutr. 2007 Jan;85(1):6-18.Free full text to enjoy real Science! http://www.ajcn.org/cgi/reprint/85/1/6
Vitamins versus leukemiaVitamins A and D may stop cancer cells from growing by Joseph Briante Vitamins that can "steer" cancer cells away from growth toward cell differentiation or cell death may form the basis of new therapies for fighting leukemia, say University of Guelph researchers. Profs. Kelly Meckling-Gill and Jim Kirkland, graduate student Donna Berry and post-doctoral fellow Ducica Curdic, Department of Human Biology and Nutritional Sciences, have discovered a vitamin D signalling pathway that affects how cancer cells grow and develop.They're now looking at a combination of vitamins A and D to combat acute promyelocytic leukemia (APL), which accounts for about 10 per cent of leukemia cases.Vitamins A and D may also have preventive activity in inhibiting leukemia development in the "at risk" population."If we treat leukemia cells with both (Vitamin A and D), those cells are induced to die at a high rate," says Meckling-Gill. "And the vitamins may have a role in preventing cancerous development."THE APL CHALLENGEAPL usually strikes adults in the prime of their life, with a median age of about 35. Traditional chemotherapy is effective, but relapses are common and very aggressive. So physicians use another approach known as differentiation therapy, which uses an agent to force immature cancer cells to mature and, at the same time, inhibits their growth. One such agent, retinoic acid -- an active metabolite of vitamin A -- has already been used clinically to treat APL. But its use is limited because it has only short-term efficacy, and patients generally develop resistance. The Guelph researchers hope that a dual attack using calcitriol, the active form of Vitamin D, and retinoic acid will improve the efficacy of differentiation therapy. If this happens, a treatment could be developed to use when retinoic acid fails.Meckling-Gill has shown that when calcitriol is used, APL cells mature normally in a pathway distinct from the one induced by retinoic acid. APL cells are arrested at a point where they would normally choose between two maturation pathways. Retinoic acid stimulates maturation to neutrophils; and calcitriol, to monocytes and macrophages, cell types important for immune function."A patient resistant to retinoic acid may still respond to vitamin D," says Meckling-Gill. "We hope this research will contribute to the design of a drug to use in a clinical setting." A MORE GENTLE THERAPYThe advantage of vitamin-derived treatment is that it could decrease problems associated with immunosuppressive and chemotherapeutic drugs, which often have very toxic side effects. If effective, differentiation therapy eliminates the need for patients to undergo bone marrow transplants, which are risky and costly.This research is sponsored by the Natural Sciences and Engineering Research Council and the Cancer Research Society Inc.