Cumulative effects and predictive value of common obesity-susceptibility variants identified by genome-wide association studies.

I know these specialist-aimed paper can be hard to read and understand especially for people not used to looking at such things, but the basic conclusion is that all of the risk alleles combined only account for ~1% of BMI/weight variance.

All SNPs combined explained 0.9% of BMI variation, with an AUC of 0.574 (95% CI: 0.559, 0.590) for prediction of obesity.

The rest is due to other factors.

Like eating too fucking much. (That part is not in the paper.)

So nope, your genetics ain’t makin’ you fat.