A traditional approach sees you reduce carbs to around 5% of total energy intake with a maximum carb limit of 50g per day. The reason for this is somewhat unclear, but a low-carb diet seems to help modulate neural stress and elevate levels of GABA – a calming neurotransmitter. It shares similarities to other low-carb diets such as Atkins or Paleo. But, did you know that there's a link between keto and testosterone? Adequate protein intake and calorie balance are also crucial for maintaining optimal T levels. While some mechanisms suggest potential risks, others indicate that keto can support hormone synthesis when properly managed. Incorporating resistance training and managing stress are equally important, as these factors directly influence hormone levels. According to a study, a 75g sugar intake in a day can cause a 25% drop in the T levels. High levels of insulin in your blood can lower your T levels. It would ultimately lead to weight gain and lower T levels. Some evidence suggests that a very low-carb diet can lower cortisol levels, which may be beneficial for overall health (22). Being overweight or obese can lead to lower testosterone levels (9). If you think your testosterone levels may be clinically low, it’s important to see your healthcare provider to get tested and discuss causes and treatments. So whether the keto diet causes erectile dysfunction and other nuances of the keto and testosterone cycle are still up for debate. Another important factor to consider is the impact of body composition on testosterone levels. Researchers split 25 young men into two diets – keto and high-carb – then had both groups resistance train for 11 weeks. While chronically high insulin can negatively impact testosterone, moderate insulin reduction on keto may not be detrimental. However, LDL cholesterol is essential for hormone production, including testosterone. However, extreme calorie restriction or rapid weight loss can have the opposite effect, potentially lowering testosterone due to increased stress on the body. This reduction in insulin can have downstream effects on other hormones, including testosterone. In conclusion, the effects of ketosis on male hormones are complex and depend on various factors, including diet composition, duration of keto adherence, and individual lifestyle. Despite these potential benefits, athletes and active men should approach the keto diet with caution. The list above is what you would eat most of the time while following the low carb part of the diet. Targeted keto is an advanced dietary strategy for a specific type of person who works out intensely and needs to increase performance. Occasionally spiking your insulin will help you get the best of both worlds and maximize muscle growth and exercise performance. Another hormone called growth hormone is needed for muscle building and weight loss. On a TKD, you’re likely to eat fewer carbs overall compared to CKD. With TKD, you would only bump up your carbs only around your high-intensity workouts — not for the whole day. On workout days, your carb macros might increase slightly, and your fat macros would decrease.