Vitamin D & Testosterone
Vitamin D is one of the 24 essential vitamins needed for us to survive.
It plays a part in over 1,000 bodily functions and provides a host of health benefits:
- healthier bones,
- increased immunity,
- better nutrient absorption,
- reduced risk of osteoporosis,
- and reduced risk of cancer to name a few.
As it turns out, vitamin D levels are also directly correlated with testosterone levels.
Here’s a quick look at the research:
Researchers analyzed the blood work of 2,299 men for a variety of factors. A major finding in the study was that men with sufficient vitamin D had much higher testosterone levels compared to men who were deficient in it (1).
Researchers gave healthy men (i.e. without ED) a daily dose of either 3,332IU of vitamin D or placebo. After one year, the men supplementing with vitamin D had about 25% higher testosterone levels (2).
After analyzing the blood work of 1,362 men, researchers found a direct correlation between vitamin D levels and testosterone. This correlation, however, plateaued when vitamin D reached above a certain level (3).
As you can see, vitamin D is essential for testosterone.
If you currently have low vitamin D levels, then topping them up can have a significant impact on your T.
Past a particular point, however, the effect plateaus.
So if you already have optimal vitamin D levels (between 75-85 nmol/l) then topping up your levels even further will not impact on your T.
Vitamin D can be acquired through foods like fish, dairy, and eggs, but the ultimate source of it is the sun.