XTend is "The first supplement ever proven to double your fat loss, double your muscle gain and double your strength when compared to whey protein! "At least that is what the XTend website says. I was intrigued and wanted to see if there was any proof of this claim and help others see if XTend was right for them. Xtend Ingredients Xtend is supplement made by Scivation (Scivation.com) and …