I have been using metformin for several years
the numerous health benefits and anti-aging properties and disease prevention benefits make metformin one of the best drugs you can take
the bloating and gas from metformin is due to the fact you have a large amount of bad bacteria in your gut, this will pass in time, just reduce the dose and keep going
make sure to take after a meal as this will help for those that suffer from this
best health benefits come from around 1800mg daily from medical studies which is an odd number since most are 500mg tab dose
start with 1000mg and once your stomach gets better bump to 1500mg
Berberine is good also but metformin is much better, not in same league, plus much of berberine is of low quality so beware
some coaches don't like it because of the fact it reduces igf-1, but if you are on gear you have nothing to worry about
others complain of a lowered testosterone level but I have done my blood work even when not on any gear and it didn't effect me at all
one of the best long term health compounds you can take plus it does help drop fat from another pathway, increase good gut bacteria, prevents diabetes, heart disease and even cancer among numerous other benefits