To the best of our knowledge, this is the only study that has examined the anabolic effects of Garcina mangostana in humans. Significant improvements were reported in FT concentrations in the supplement group compared to the placebo group. In addition, the group consuming the supplement performed significantly more repetitions on the leg extension exercise and realized significantly greater increases in lean body mass and arm circumference than the placebo group. To optimize testosterone levels, aim for a moderate protein intake that supports muscle growth without compromising hormone production. Carbohydrates play a critical role in energy production and hormone regulation, including the balance of testosterone levels in your body. One study published in Nutrients in 2021 found that men consuming a high-fat diet (75% of their dietary intake) experienced significant increases in testosterone levels during resistance training. So if you’re trying to figure out the optimal intake of dietary fat for testosterone production. Both during and after the study, the researchers saw that the higher fat intake group had higher free testosterone levels, along with lower sex hormone binding globulin (SHBG) levels. A recent study showed no significant relationship between dietary intake of CHO and total and free T levels in healthy women . Effect of fat and protein intake on changes in circulating testosterone concentrations. Although evidence points to a positive effect of dietary fat on circulating testosterone concentrations, it should not be dismissed that fat is not the optimal fuel source for athletes participating in strength/power sports 83,90,91,92. It has been suggested that increases in testosterone concentrations resulting from a KD are related to the high dietary intake of cholesterol . Hu and colleagues observed a significant decrease in testosterone concentrations when dietary macronutrient intake was reduced. Consuming foods or dietary supplements containing nutrients with aromatase inhibitors may provide an ergogenic effect by inhibiting the conversion of testosterone to estradiol, indirectly increasing testosterone concentrations. Does this mean that low-protein diets are the answer to higher testosterone levels? BFM, total body fat mass; SMM, skeletal muscle mass; VFM, visceral fat mass; SFM, subcutaneous fat mass. Multivariate linear regression of serum total testosterone levels and selected anthropometric, inflammation, lipid, glucose, and iron-related biomarkers. Body compositions were divided by the body weight and expressed as the total body fat mass (BFM) (%), skeletal muscle mass (SMM) (%), visceral fat mass (VFM) (%), and subcutaneous fat mass (SFM) (%). Considering that high-fat diets (HFD) increase cholesterol levels, increases in dietary fat consumption have been suggested to potentially result in an increase in testosterone production . Achieving the right balance of macronutrients in your diet is crucial for optimizing testosterone production and supporting muscle growth, fat loss, and overall health. High protein intake can increase cortisol levels, a hormone that can suppress testosterone production. Your dietary pattern can directly affect testosterone and other hormone levels, so it’s essential to consider these dietary components in your routine for better overall hormonal health. Specific dietary patterns have been shown to influence your testosterone levels, which are crucial for maintaining muscle mass and overall health. While dietary fats provide the cholesterol needed for hormone production, the role of carbohydrates is equally important for hormonal homeostasis.