According to studies, one to two cups of strong coffee each day can help raise your testosterone levels. This is equivalent to 200 to 400 mg of caffeine.
A higher intake than this would likely raise levels of the stress hormone cortisol which would do more harm than good. This can lead to catabolism and inhibition of muscle tissue growth. Keep your intake to about 1-2 cups per day to reap the T-boosting benefits.
Adding butter to your morning cup of coffee instead of milk can be a tasty addition and also give you a maximum amount of T boosting nutrition in one simple cup.
This was popularized as the “Bulletproof coffee” and is not really a new phenomenon, it has been practiced by the inhabitants of Tibet for centuries as Po Cha, which is buttered tea. It helps them to resist the hard conditions and climate of living at high altitudes in the Himalayan region.