Testosterone is generated a number of ways in the human body - but most of it comes from the testicles in men.

A smaller amount is from the pituitary in both men and women.

Depending on your weight there is an enzyme created in fat cells called aromatase which converts testosterone to estrogens which can have an impact on your overall hormonal picture.

Testosterone is derived in the body from cholesterol, which is way proper fat consumption is so important for a healthy endocrine system.