Another gender gap: compensating differentials for being thin

 From the Economist, The economics of thinness,

Myriad studies which find that overweight or obese women are paid less than their thinner peers while there is little difference in wages between obese men and men in the medically defined “normal” range. 

... research in America, Britain, Canada and Denmark suggests that overweight women do have lower salaries. The penalty for an obese woman is significant, costing her about 10% of her income.

An economist at the BLS offers a partial explanation: “the increasing rarity of thinness has led to its rising premium.”