I recently downloaded my Ancestry.com DNA data, and started looking at it with the help of SNPedia:
One of the neat things I found is that I have genetic markers for increased coffee consumption:
https://www.snpedia.com/index.php/Coffee
I drink at least a few cups a day and so does my dad, so confirmation bias does the rest.
That makes me wonder if drinking coffee (amoungst other foods) is truly causal in decreasing prostate cancer, as opposed to heavy coffee drinkers having other correlated biomarkers (in particular ethnic correlations) that help dodge it.
Anyways, I’m not trying to disparage this study, I just think it’s neat that we’re somewhat predisposed to like certain foods from birth.