"Typically within four to eight weeks [of] taking creatine, you'll probably gain anywhere from two to four pounds of lean body mass," Antonio says. "You have to combine training with creatine," Antonio says. It's not just your muscles that could benefit from taking creatine, either. A 2018 study published in Elsevier suggests that taking creatine supplements might improve short-term memory and reasoning skills in healthy individuals. "There's some evidence in endurance athletes that [creatine] will also help endurance," Antonio says.

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Persons: Jose Antonio, Antonio, It's Organizations: Florida's Nova Southeastern University, CNBC, Elsevier, Harvard Health Publishing