The normal value of testosterone T in men ranges from about 14 to 25.4 nmol/L, and the exact value is related to the man’s own condition. Testosterone T is a steroid hormone that is mainly secreted from the testes, with small amounts also secreted by the adrenal glands, and has the effect of maintaining muscle strength and mass as well as boosting energy. Once secreted into the male bloodstream, testosterone is usually present in 3 different forms, with about 65% of testosterone bound to sex hormone binding proteins, about 33% bound to serum albumin, and the remaining 2% of testosterone present in a free form. Normally, most men have a testosterone t-value of around 14 to 25.4 nmol/L or so. If the actual testosterone t-value is lower than normal, then it may be related to testicular disease, obesity, diabetes, alcohol consumption, and many other factors, which can easily lead to a decrease in the number of sperms, which in turn affects the fertility, and thus should be paid special attention to. In order to maintain a normal testosterone T value in men, it is necessary to develop healthy eating habits in normal times, you can eat some zinc-containing foods, such as oysters, beef, etc., timely supplementation of nutrients, and pay attention to rest, try not to stay up all night. If the patient is not feeling well, he should consult the doctor for examination and early treatment.