This guide has been reposted with permission from Examine.com.  Why learn to read a scientific study? Marketing claims backed by “scientific evidence” pervade the health and fitness industry. Supplement manufacturers sell compounds like green coffee extract (on which there is barely any human research) as if their effects were as well-established as those of creatine (on which there are hundreds of human trials). Sometimes, following the paper trail of a marketing claim does lead to a real, published study — but not all studies are created equal. To avoid wasting money on ineffective products, you need to be able to…

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