Vegan Diet Plan for Weight Loss

Following a vegan diet while using GLP-1 medication such as Mounjaro or Wegovy is absolutely possible, but it requires a little more planning. With a smaller appetite and slower digestion, meeting your protein and micronutrient needs can be challenging.

This guide explains how to follow a balanced vegan diet while on GLP-1 treatment, including key nutrients to focus on, how to manage side effects, and practical meal ideas to help you feel your best.

GLP-1 receptor agonists work by slowing gastric emptying and enhancing fullness signals. For vegan GLP-1 users, this can lead to:

• Reduced total food intake, affecting protein and iron levels
  
• Discomfort if fibre intake is too high or introduced too quickly
• Greater need for careful planning to avoid deficiencies in B12, calcium, and omega-3 fats

Prioritise protein

Include a protein source at each meal. Combine foods to create complete amino acid profiles. Examples include:

• Tofu, tempeh, and soy yoghurt
• Lentils, beans, and chickpeas
• Quinoa, buckwheat, and amaranth
• Vegan protein powders made from pea or soy

See Protein on GLP-1s for more detailed guidance.

Balance fibre intake

Fibre is vital for gut health but can worsen bloating or nausea if too high. Choose cooked vegetables, blended soups, or soft fruits like bananas and berries. Gradually increase variety as your digestion adapts.

Watch for key micronutrients

Supplement where needed, especially for:

• Vitamin B12: essential for energy and nerve health
• Iron: found in lentils, beans, and fortified cereals
• Calcium: from fortified plant milks and tofu
• Omega-3: from chia, flaxseed, or algal supplements

See our article Supplements and GLP-1s for more information.

Challenge: Bloating from fibre
Practical Response: Switch to cooked vegetables and limit raw foods temporarily.

Challenge: Low protein intake
Practical Response: Add tofu, lentils, or pea protein powder to main meals.

Challenge: Low appetite
Practical Response: Choose higher-calorie plant foods like nut butter, tahini, or avocado.

Challenge: Fatigue
Practical Response: Check B12 and iron intake; consider supplements if needed.

• Breakfast: Smoothie with soy yoghurt, banana, oats, and pea protein
• Snack: Roasted chickpeas or nut butter on oatcakes
• Lunch: Lentil soup with wholegrain bread
• Dinner: Tofu stir-fry with rice and cooked vegetables

Each meal provides protein, gentle fibre, and slow-release carbohydrates for balanced energy.

Speak to a Medicspot clinician if you:

• Struggle to meet protein or iron needs
• Experience ongoing bloating or discomfort
• Notice excessive fatigue or dizziness
• Need advice on vegan supplements while using medication

Our clinical team can help tailor a safe and sustainable vegan plan for your treatment phase.

Medicspot’s clinicians and health coaches specialise in supporting people on GLP-1 receptor agonists, including those following plant-based or vegan diets. Our experts can help you design a balanced routine that maintains strength, comfort, and nutritional wellbeing throughout your weight-loss journey.

Take our free online assessment to see if GLP-1 treatment could be right for you, or use the weight loss calculator below to find out instantly if you are likely to be eligible and to see how much weight you could lose.

• A vegan diet can work well with GLP-1 treatment when carefully balanced.
• Prioritise protein and monitor key nutrients like B12, iron, and calcium.
• Adjust fibre intake for comfort and include soft, cooked foods.
• Supplement where necessary and seek clinical advice when needed.

Disclaimer

This article is for general information only and should not be used for the diagnosis or treatment of medical conditions. Medic Spot Limited has used all reasonable care in compiling the information but makes no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. In the event of an emergency, please call 999 for immediate assistance.

There is no guarantee of a specific weight loss medication being prescribed. Clinicians will review your online questionnaire and will recommend the most appropriate weight loss treatments for you based on your answers. In some cases the clinicians may contact you for additional information. See our Terms of Service for more information.