Earlier this month I have discussed the scientific process and how to interpret results, but at some point we also have to look at whether the process that brought about the results was valid in the first place. In my last article, I discussed a study looking at HMB supplementation and explained how the fact that the subjects included no females and no trained athletes limited what conclusions could be drawn from the findings and applied to larger populations of people. But there was another larger issue with the study design: the study had no control group.
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