There are several hormones affecting your body mass index. Testosterone or the male sex hormone is one of them. Lower testosterone adds to the body weight and fat. According to medical research papers, testosterone hormonal imbalance can impact your body health badly. Low testosterone adds to abdominal fat. The fat gain is compounded in middle aged men between 35 and 45. They witness weight gain around the middle part of body. It is known as abdominal obesity and popularly called as beer belly, fat belly and spare tire. Testosterone therapy can effective address this problem. 

Testosterone therapy aims at increase the testosterone level of a male to the level of a 25 year old. The increased level is capable of counteract with the negative effects of estrogens. In the absence of adequate secretion, abdominal fat cells are capable of converting testosterone to estradiol. This conversion compounds with the additional weight of the person and diminishing testosterone secretion. This results in higher insulin secretion and fat belly. Testosterone therapy effectively counters with the problem and checks the conversion. As a result, additional fat formation at abdominal region gets a setback. Along with, this therapy is also beneficial for maintaining ideal blood pressure and waist-to-hip ratio.