Weight Management
April 7, 2026
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Diet and Exercise While on GLP-1 Medication: Maximising Weight Loss Results
Medically reviewed by Dr. Kevin Chua, Medical Director
Medically reviewed by Dr. Kevin Chua, Medical Director
Disclaimer: This article provides general medical information and is not a substitute for professional medical advice.
GLP-1 medications do the heavy lifting of appetite reduction, but what you eat and how you move still matter enormously. The right diet and exercise approach during medical weight loss maximises fat loss, preserves lean muscle mass, and builds habits that support long-term weight maintenance.
When you're in a calorie deficit (whether medication-assisted or not), your body loses both fat and lean tissue. The single most important nutritional strategy during GLP-1 treatment is adequate protein intake to minimise muscle loss.
| Body Weight | Daily Protein Target |
|---|---|
| 70 kg | 84–112 g |
| 80 kg | 96–128 g |
| 90 kg | 108–144 g |
| 100 kg | 120–160 g |
General guideline: 1.2–1.6 g of protein per kg of body weight per day1.
| Food | Protein (approximate) |
|---|---|
| Chicken breast (palm-sized) | 25–30 g |
| Fish fillet (1 piece) | 20–25 g |
| 2 eggs | 12–14 g |
| Tofu (1 block, ~150g) | 12–15 g |
| Greek yoghurt (1 cup) | 15–20 g |
| Protein shake | 20–30 g |
Singapore hawker tips: - Chicken rice — ask for extra chicken, less rice → ~25g protein - Fish soup — excellent protein source → ~20-25g protein - Thunder tea rice (lei cha) — add tofu → moderate protein - Yong tau foo — choose protein-rich items (tofu, fish, egg)
GLP-1 medications change your relationship with food. Here's how to adapt effectively.
Your stomach empties more slowly on GLP-1 medications. What felt like a normal portion before may now feel overwhelming. Practical strategies include:
Prioritise: - Lean proteins (chicken, fish, tofu, eggs) - Vegetables (as much as you like) - Whole grains (brown rice, oats — in moderate portions) - Fruits (especially lower-sugar options like berries) - Healthy fats (nuts, avocado, olive oil — in moderate amounts)
Minimise: - Fried foods (harder to digest; worsen nausea) - Heavily processed foods (calorie-dense, nutrient-poor) - Sugary drinks (empty calories; insulin spikes) - Large meals (better to eat smaller, more frequent meals)
Exercise during GLP-1 treatment serves different goals than exercise for weight loss alone. The priority shifts from "burning calories" to "preserving muscle and building fitness."
Resistance training is the most important exercise modality during medical weight loss. It's essential for preserving lean mass during caloric deficit.
Recommended: - 2–3 sessions per week - Target all major muscle groups - Progressive overload (gradually increase weight/resistance) - Can be gym-based (weights, machines) or bodyweight (push-ups, squats, lunges)
Starting points for beginners: - Bodyweight squats: 3 sets × 10–15 reps - Push-ups (or wall/knee push-ups): 3 sets × 8–12 reps - Lunges: 3 sets × 10 per leg - Rows (resistance band or dumbbell): 3 sets × 10–12 reps
Non-exercise activity thermogenesis (NEAT) — general daily movement — contributes significantly to total calorie expenditure: - Take stairs instead of lifts - Walk to nearby errands instead of driving - Stand or walk during phone calls - Park further away from your destination
GLP-1 medications create unique dietary situations that require adaptation and planning.
While reduced appetite is the goal, extreme appetite suppression can make it hard to meet nutrition targets — especially protein.
Solutions: - Set meal reminders (eat by the clock, not by hunger) - Prioritise protein at every meal - Consider protein shakes if solid food is unappealing - Don't skip meals entirely — even a small meal is better than nothing
Singapore's food culture revolves around shared meals. Managing social situations while on GLP-1 medication requires some strategy:
During dose increases, some foods may be temporarily unappealing: - Stick to bland, easy-to-digest foods (rice porridge, clear soups, crackers) - Avoid strong-smelling foods - Small, frequent snacks rather than large meals - This phase is temporary — variety returns as you adjust
GLP-1 receptor agonist medications for weight management in Singapore typically cost SGD $200–500 per month depending on the specific medication and dosage. Costs vary by provider and whether branded or biosimilar options are available. noah™ offers structured weight loss plans with doctor oversight.
Prices are approximate and may vary. Updated April 2026.
Not necessarily. GLP-1 medications naturally reduce calorie intake by suppressing appetite. However, focusing on food quality (especially protein) and portion size is important. If progress stalls, calorie awareness may help identify issues.
Absolutely. Singapore's hawker food can be part of a healthy weight loss diet. Choose protein-rich options, moderate portion sizes (e.g., less rice), and avoid deep-fried dishes as your default.
Yes, and it's strongly recommended. Start at a comfortable level and gradually increase intensity. If you experience dizziness or excessive fatigue, reduce intensity and ensure adequate hydration and nutrition.
The three pillars: adequate protein (1.2–1.6 g/kg/day), regular resistance training (2–3×/week), and not losing weight too rapidly (0.5–1 kg/week is ideal for fat loss while preserving muscle).
A daily multivitamin can help ensure micronutrient adequacy during calorie restriction. Protein supplements (whey or plant-based) are useful if you struggle to meet protein targets through food alone. Discuss specific supplements with your doctor.
→ Return to pillar: Complete Guide to Medical Weight Loss in Singapore
This article is for informational purposes only and does not constitute medical advice. Always consult a licensed doctor before starting any treatment.
Davies MJ, Bergenstal R, Bode B, et al. Efficacy of liraglutide for weight loss among patients with type 2 diabetes. JAMA. 2015;314(7):687-699. PMID: 26132939 ↩
Articles featured on Noah are for informational purposes only and should not be constituted as medical advice, diagnosis or treatment. If you have any medical questions or concerns, please talk to your healthcare provider.
