Which intervention most directly targets the modifiable component of body composition to improve health outcomes?

Wearing a waist trainer daily to compress subcutaneous fat and change body composition permanently

Progressive resistance (strength) training combined with adequate protein intake to increase lean muscle mass and reduce relative body fat

Strict carbohydrate restriction only for one week to quickly decrease body mass through glycogen depletion without exercise

Taking diuretics to reduce total body water and thus lower measured weight without changing muscle or fat