[testdelacc1]

Some say there is a link between calorie consumption and weight gain but we don’t know for sure.

[ElFitz]

I thought they said it was all slow metabolism and lack of exercise, aka bad luck (genes) and laziness.

[TeMPOraL]

No, obviously it's all just Not Eating Healthy. Calories are irrelevant, because Body Is Magic and Not As Simple AS "calories in, calories out".