Usage patterns
脂肪がつくfor fat to build up (on the body)
From lack of exercise, fat has started building up on my body.
脂肪を燃やすto burn fat
I run every day to burn fat.
脂肪を落とすto lose fat (reduce body fat)
I plan to change my diet and lose fat.
脂肪を蓄えるto store up fat
Animals store up fat in preparation for winter.
脂肪が多いto be high in fat
This meat is high in fat, so it isn't suited for health-conscious people.