In one study, overweight men with low testosterone who were given vitamin D supplements had a surprisingly big increase in testosterone levels and lost almost all of their excess weight after one year. (fitnessandpower.com)
Studies have shown that increased fat intake results in the best increase in testosterone production. (thescienceofgettingripped.com)
But to be honest, if you want to see a big increase in your testosterone levels, it's more important to avoid certain foods. (get-a-wingman.com)