Endurance exercise helps increase testosterone levels in the body (,), but adding whey protein to the diet has no impact on testosterone levels. Many of us use whey protein to help lose weight, lower cholesterol, lower blood pressure, and even for asthma. The whey protein in the shake causes muscles to extract testosterone from the bloodstream and take advantage of it. If you're feeling fatigued by too much whey protein, don't let your energy levels and muscle growth be affected.
When extrapolated to humans, that's approximately 19 grams of whey protein and 2.8 grams of leucine, both fairly standard doses. Immediately after this training, the rats received 500 milligrams of whey protein, which provided approximately 50 milligrams of leucine, or the rats received only an additional 54 milligrams of leucine or just water (the control group). Protein buildup can also cause “rabbit starvation,” in which the body converts too much protein into ammonia, which is toxic at high levels. Stop doubting if your whey protein intake is helping to improve your testosterone and commit to something that WORKS.
If you're wondering if whey protein increases testosterone, the answer is that whey protein can increase testosterone absorption. A common question about whey protein actually has less to do with whey protein and testosterone and more to do with whey protein and estrogen. So does whey protein increase testosterone? Well, over time, this increase in androgen receptors could be beneficial. As for the impact of whey protein on the digestive system, it could contribute to increased estrogen levels due to the heavy metals and BPA found in some commercial protein powders.
After receiving 500 milligrams of whey protein, the researchers found a 90.5% increase in the intracellular concentration of testosterone in the exercised muscle. The advice to consume lots of protein is one of the ten commandments of muscle development, and whey is often recommended as the perfect source. Specifically, there may be bioactive peptides present in whey protein that make whey a superior option for post-workout nutrition and muscle development. Difficulty digesting whey protein could also cause a disruption in the body's ability to regulate estrogen production and inflammation in the intestine.
Although free amino acids such as leucine have their benefits, this study points to the possibility of producing new discoveries about the specific value of whey protein.