Mary was a business major who enrolled in my sports nutrition course at the University of New Hampshire. She played on the women’s lacrosse team and was working toward a minor in Nutrition. She always attended class and participated in class discussions. So, I was surprised when she emailed me the following message while conducting research for an essay on the protein requirements of athletes:

Hi Dr B,
Two internet sources I have looked at regarding protein intake for muscle builders have suggested a MINIMUM of 1-1.5 g (preferably 2) for every POUND. That is a ridiculous amount, and I am not sure if these sites have mixed up kg with lbs? They just seem like they know what they are talking about because they give examples. I am confused...

Mary’s not alone in her confusion. Many internet sites are incorrect and spread misleading information, especially when they’re linked to sites that sell protein supplements. I prefer to think that the authors are naively spreading the manure of their own ignorance (like, mixing up kg with lb), rather than lying to sell products and rob athletes.