Brandon Dotson is a graduate of Lehman college with a Bachelor of Science in health education and a minor in marketing. Please check with the appropriate physician regarding health questions and concerns. The information contained on this site is for informational purposes only, and should not be used as a substitute for the advice of a professional health care provider. The original study is slightly unclear, in that it implies all 10 drop-outs were from the treatment group, but does not explicitly state this. Different protein sources may have differential effects on TT, thus future research may also examine the effects of plant versus animal, and whole food versus powdered protein. Rodents fed protein 52% of TEI show kidney injury and increased systemic inflammation (Snelson et al., 2021); and fed protein 44% of TEI show increased markers of oxidative stress (Żebrowska et al., 2019). Some very low-carb or keto diets can lower testosterone levels by a little or a lot. Therefore, a review was conducted on the effects of low- versus high-carbohydrate diets on men's testosterone and cortisol. Excessive restriction of carbohydrates might lead to elevated cortisol levels, which can adversely affect testosterone. 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. Carbohydrates play a critical role in energy production and hormone regulation, including the balance of testosterone levels in your body. Moreover, a balanced intake of carbs can counter the effects of cortisol that may otherwise inhibit testosterone production by promoting a state of stress in the body. A low-carbohydrate diet may lead to an increase in cortisol levels and a decrease in free testosterone levels. Pairing TRT with plant-based diets high in carbohydrates and fiber but low in dietary fat can reduce and stabilize your average blood sugar. Specially for men, a high-carb diet improves testosterone levels and decreases cortisol better than a low-carb diet over just 10 days (Study). They observed that men adhering to a high-carb, low-protein diet had higher testosterone levels after 10 days compared with those who followed a high-protein, low-carb diet 1. However, not eating enough carbohydrates can also lead to lower testosterone levels in your body 1. Per calorie, protein is more satiating thanfat or carbohydrate, thus HP diets commonly cause a decrease in energy intakevia increased satiety (Paddon-Jones et al., 2008); and low energy intakes are known todecrease T (Henning et al.,2014). Interestingly, the rise in post-exercisecortisol was reduced in studies using carbohydrate supplements during exerciseon HC diets (Supplementary Appendix – Table 9). Percentage change in resting cortisol… Risk of bias of included studies. To manage cortisol, incorporating stress-reduction techniques and ensuring adequate rest are recommended. We hypothesized that obesity might affect not only the male sex hormone, T, but also nutrient metabolism (e.g., iron and glucose), and alterations in nutrient metabolism may contribute to the bidirectional relationship between obesity and the male sex hormone, T. Overall, the effect of CHO intake on androgen may differ between genders. Malnutrition (e.g., protein restriction or a protein-energy deficiency) was suggested to impair Leydig’s cell function and affect T biosynthesis 26,27.