Vitamin D deficiency has become rampant. Estimates indicate that 40 – 60% of the U.S. population may be deficient in Vitamin D. There are theories on why this is so from the overuse of sunscreen, to the fact that we spend more and more time indoors.
In recent years, much has been written about vitamin D supplements. Vitamin D is critical for bone health and preventing diseases such as rickets.
Vitamin D is a fat-soluble vitamin, known for its effects on bone and calcium metabolism. If you’re deficient in vitamin D, your athletic performance will be impaired.
You can take at as much as 2,000 – 4,000 IU. However, be aware that if you take too much there is evidence that suggests it may promote fat growth. This amount – between 2,000 – 4,000 IU – has been shown to be safe.
Vitamin D supplementation, in vitamin D deficient individuals, will increase testosterone levels. However, vitamin D supplementation in individuals who don’t have vitamin D deficiency will do nothing with regard to testosterone levels.
So, if you’re going to take Vitamin D supplements, use D3. De has been shown to be about 90% more potent at raising levels of storage in the body as opposed to vitamin D (as opposed to D3).
