Several studies concluded that diets low in fat (under 15% of total calories) significantly decreased testosterone levels while diets higher in fat (above 30% of total calories) increased serum testosterone levels. Rather than continuing with this discussion I will provide a link to an article which covers the subject quite nicely. To simplify everything that I have said, it seems that one should not lower fat below 15% of daily calories unless they would like to face extreme testosterone deficiencies. Likewise, one should not increase fat to say 40% in order to increase testosterone. Although fat increases testosterone to a degree, it is important to remember that testosterone is only a small piece of the larger puzzle. There are many other hormones and factors involved in building muscle other than just testosterone. By increasing fat to extremely high levels, there will be less “space” for carbohydrates and protein, both of which are very important for aforementioned reasons.
I’m currently the biggest I’ve ever been with the level of conditioning I have, I’m hard with definition and have striations in my ass, hams and triceps, now I’m not in comp shape sure I have body fat but I am not fat, I am hard to the touch and am tipping the scale at almost 175lbs at 5ft 2. I had a look at some of the competition and I do respect anyone that does sessions but never call me a fat pig again, after what I saw some were fat and many looked like figure gals however if that’s what you enjoy great,but now I can understand why guys want to see pictures all the time as yrs ago that never happened.