Maintain a calorie deficit to reduce overall body fat
Eat a balanced diet with enough protein, vegetables, and whole foods
Reduce sugary drinks, alcohol, and highly processed foods
Stay hydrated
Exercise regularly, including cardio and strength training
Improve posture to reduce the appearance of a double chin
Practice chin and neck exercises if desired
Get enough sleep
Manage stress
Check for weight gain-related causes
Consider medical or genetic factors
Consult a doctor or dermatologist for persistent under-chin fat
Ask about treatments such as cryolipolysis, deoxycholic acid injections, liposuction, or skin-tightening procedures