I love the sun, but when I'm unable to be in it, which is more so than not, I supplement with D3 and K2. I like this brand because of it's high IU's and the company's reputation. I can tell a positive difference in my health when I am faithful with D3.
During exercise, it affects the "pump effect", the muscles are able to perform more intense training, and every man will quickly feel the results of the preparation. Some testosterone boosters work by preventing existing testosterone from converting into estrogen, while others directly increase testosterone production. However, there’s no food or diet that is proven to definitely increase your testosterone levels.