I've been reading about Bartolo Colon and got intrigued: Which active MLB player has the highest Body Mass Index of the league?
Note: Prince Fielder is currently* listed at 5'11" 275 lbs. for a BMI of 38.4. However, Bartolo Colon is currently* listed at 5'11" 285 lbs. (265 lbs. in reference list, circa 2011) for a BMI of 39.7. Depending on current* listings, this would make Bartolo Colon as the active MLB player with the highest Body Mass Index, but this may vary when we consider listed weight vs. actual weight.
*As of the 2014 MLB season