Lose overall body fat through a calorie-controlled diet and regular exercise
Focus on cardio and full-body strength training
Maintain a healthy, stable weight
Wear a properly fitted supportive bra to reduce the appearance of breast size
Improve posture to make the chest look smaller
Avoid rapid weight gain
Consider reducing high-calorie, high-sugar, and highly processed foods
Discuss hormonal causes with a doctor if breast size changed suddenly
Review medications with a healthcare professional if they may affect breast tissue
Consider surgical breast reduction if you want a permanent change
Consult a doctor before starting any weight-loss or medical treatment plan