A study conducted on males of an average age of 40 showed that approximately 170mg of epicatechin per day, dosed at 2mg per kg of bodyweight, resulted in almost a 50% increase in follistatin and a 16.6% decrease in myostatin, alongside a strength increase of 7%. In a second study, researchers provided participants with 50-200mg of epicatechin a day and were amazed to find that their follistatin levels were 250% higher after just 5 days!