Smoking Cessation and Weight Gain
The modest weight gain many people experience after quitting smoking, and how to manage it safely.
Plain English
Patient-Friendly Explanation
Many people gain some weight after quitting smoking because nicotine suppresses appetite and speeds up metabolism. This gain is usually modest and far less harmful to your health than continuing to smoke.
Medical
Clinical Definition
Smoking cessation commonly leads to weight gain of about 4 to 5 kg on average in the first year, driven by removal of nicotine's appetite-suppressing and thermogenic effects, restored taste and smell, and increased energy intake. Weight gain is a barrier to quit attempts and can be managed with planned diet, activity, and appropriate pharmacotherapy.
Key Insight
Why It Matters
If you are quitting smoking, planning for weight management at the same time improves your chance of a smoke-free life without excessive weight gain. Dr. Joseph Wang can coordinate a combined plan for both goals.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: August 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
