23andMe’s genotyping results has provided scientific support for something I’ve been telling people over the years without many believing me… that I can become fat. At 5’2″ and 108 lbs. of a marathon runner’s body, I can’t say I blame them. I don’t look like much at this weight, never mind the 90 lbs. I used to be at before I started distance running 16 years ago. Yet, I can eat a lot, with consequences almost like any over typical person if I don’t run it all off.

The Anecdotal Case

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