Can Vitamin D Increase Testosterone Levels in Men?

Several studies suggest that vitamin D can increase men’s testosterone levels. In a 12-month study by a German research team involving 54 overweight but healthy males, 31 of the subjects were given 3,333 IU of vitamin D per day and the rest were given placebo. The subjects were deficient in vitamin D when they entered the study. All the subjects also participated in a structured weight loss re

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