Bodybuilders who take 2.5 grams of betaine per day will change their body composition – more muscle, less fat!
Researchers experimented with two dozen experienced recreational bodybuilders – men aged between 18 and 35. All of the men followed the same intensive training schedule for six weeks. Half of them were given a placebo; the other half took 2.5 g betaine every day.
At the end of the six weeks the bodybuilders who had taken betaine had lost a couple of percent fat mass. In addition, betaine supplementation resulted in a significant increase in lean body mass (see charts). The researchers also found that the bodybuilders in the betaine group had gained more muscle in their arms.