07-01-2015, 02:11 PM
If you're using any type of pre-workout check the ingredients immediately. If it has bitter orange extract (or synephrine to be exact) throw it away and stop taking it immediately. C4 is changing their formula because this energy-booster has been found to have some very serious cardiovascular side effects when paired with caffeine.
http://www.webmd.com/vitamins-supplements/ingredientmono-976-bitter%20orange.aspx?activeingredientid=976&activeingredientname=bitter%20orange
Edit: Not to mention it is on mainly professional athletic organizations list of banned substances.
http://www.webmd.com/vitamins-supplements/ingredientmono-976-bitter%20orange.aspx?activeingredientid=976&activeingredientname=bitter%20orange
Edit: Not to mention it is on mainly professional athletic organizations list of banned substances.
![[Image: 85d8232ebbf088d606250ddec1641e7b.jpg]](https://s-media-cache-ak0.pinimg.com/236x/85/d8/23/85d8232ebbf088d606250ddec1641e7b.jpg)
