fm, how's your d3 status?
http://grande.nal.usda.gov/ibids/index. ... row=282092
: Reduction of blood pressure during long-term treatment with active vitamin D (alphacalcidol) is dependent on plasma renin activity and calcium status. A double-blind, placebo-controlled study
...This study supports the idea of a relationship between calcium metabolism and the renin-aldosterone system in essential hypertension and describes a beneficial effect of vitamin D supplementation on blood pressure in low-renin hypertension.
Pol Merkur Lekarski. 2007 Oct;23(136):307-10.[Role of vitamin D3 in arterial blood pressure control]
Bednarski R, Donderski R, Manitius J.
The basic function of vitamin D3 in human body is to maintain the calcium-phosphate homeostasis. Its metabolic function is mediated by the nuclear VDR receptor. The existance of vitamin D3 receptors outside tissues and organs which take part in calcium-phosphate metabolism has resulted in not treating it as an anti rickets agent only. Lower arterial blood pressure observed in people living in sunny areas and decrease of arterial blood pressure values after exposure to UVB radiation could confirm the relationship between vitamin D3 and hypertension. Perhaps through its influence on calcium-phosphate metabolism, RAA system, immune system, control of endocrine glands and endothelium function the vitamin D3 contributes to lowering arterial blood pressure and lessening the risk of cardiovascular disease.
http://jcem.endojournals.org/cgi/conten ... /86/4/1633
A short-term supplementation with vitamin D3 and calcium is more effective in reducing SBP than calcium alone. Inadequate vitamin D3 and calcium intake could play a contributory role in the pathogenesis and progression of hypertension and cardiovascular disease in elderly women.