Testosterone levels in the body as well as its production capacity can be influenced by a range of factors. Notably exercise, smoking and nutritional intake are some of the biggest factors which can affect it. Without going into too much detail, your ability to produce testosterone in your body is closely related to your dietary fat intake. In fact, studies 9 have shown that the amount as well as the types of fat you eat may impact on testosterone levels in the body. In general, you want a relatively higher fat intake coming from saturated and monounsaturated fats. While this might seem to go against a lot of what you’ve been told about diets, fat is no longer the demon it used to be and is definitely not a problem if you have no underlying health issues.
Different testosterone esters are often blended into one injectable preparation. In some cases up to seven esters are used, but the most popular formulation is that of Sustanon 250 where four esters are mixed together. This is done to take advantage of the faster acting esters while still only requiring weekly or bi-weekly injections. It is often believed to be a superior form of testosterone, but in reality it’s nothing more than just testosterone. One drawback of testosterone blends are that they incorporate esters with long carbon chains and those chains occupy allot of molecular weight, so the actual dosage of hormone is less than one would obtain from shorter esters like propionate. Testosterone blends are most useful during bulking phases where frequent injections are not possible.
To strengthen the anabolic properties of testosterone, more than 100 synthetic steroid derivatives have been described for human purposes. The anabolic effect promotes protein synthesis, muscle growth and erythropoiesis. In clinical practice, substances with anabolic effect are needed to overcome various catabolic states. However, none of these compounds are devoid of androgenicity. Androgenic and anabolic properties of anabolic steroids cannot be totally separated. Therefore, it is more appropriate to use the term anabolic androgenic steroids (AAS).