The liver and kidneys convert vitamin D (produced in the skin and taken up in the diet), into the active hormone, which is called calcitriol. Active vitamin D helps to increase the amount of calcium the gut can absorb from eaten food into the bloodstream and also prevents calcium loss from the kidneys.
So a healthy liver and kidneys are a must…. Watch ur diet too much of processed foods, fad diets can all deplete vitamin D.
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