Vitamin D supplementation and antibiotics
Posted: Tue Feb 07, 2006 3:42 pm
http://www.davidwheldon.co.uk/vit_D.html
Vitamin D Supplementation in Multiple Sclerosis
An essential supplement for anyone using an antibiotic regime.
Brief introduction
Vitamin D is a steroid hormone; it has long been known to be concerned in the regulation of body levels of calcium and phosphorus, and in the mineralization of bone. In recent years it has become clear that Vitamin D receptors are present in numerous cell types. Evidently it has wide-ranging effects in a number of systems. Vitamin D3, or cholecalciferol, is generated in the skin by the action of sunlight on a precursor; it is also taken in the diet. Unsupplemented dietary sources are probably inadequate. Of itself, D3 has little biological activity, but, in a two-step process, it is firstly hydroxylated in the liver to 25-hydroxycholecalciferol {25(OH)D}which is alpha-hydroxylated in the kidney to 1,25-dihydroxycholecalciferol. This is the biologically active form of vitamin D. The second reaction is tightly controlled; it is induced primarily by parathyroid hormone.........................................
Vitamin D Supplementation in Multiple Sclerosis
An essential supplement for anyone using an antibiotic regime.
Brief introduction
Vitamin D is a steroid hormone; it has long been known to be concerned in the regulation of body levels of calcium and phosphorus, and in the mineralization of bone. In recent years it has become clear that Vitamin D receptors are present in numerous cell types. Evidently it has wide-ranging effects in a number of systems. Vitamin D3, or cholecalciferol, is generated in the skin by the action of sunlight on a precursor; it is also taken in the diet. Unsupplemented dietary sources are probably inadequate. Of itself, D3 has little biological activity, but, in a two-step process, it is firstly hydroxylated in the liver to 25-hydroxycholecalciferol {25(OH)D}which is alpha-hydroxylated in the kidney to 1,25-dihydroxycholecalciferol. This is the biologically active form of vitamin D. The second reaction is tightly controlled; it is induced primarily by parathyroid hormone.........................................