Onyx Supplements ↗Protein Supplements
Optimum Nutrition - Serious Mass - 5.44kg
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Product notesAbout this product Product Overview Optimum Nutrition – Serious Mass — When it comes to building muscle and gaining size, your body needs a calorie surplus — and that’s where Serious Mass steps in.…Read the full detailsClose details
Optimum Nutrition – Serious Mass — When it comes to building muscle and gaining size, your body needs a calorie surplus — and that’s where Serious Mass steps in. This high-calorie mass gainer packs a massive 1,250 calories per serving, delivering 50g of protein and over 250g of carbohydrates to help you grow and recover faster. Designed for athletes, hard gainers, and anyone struggling to meet daily calorie goals, Serious Mass provides high-quality nutrients without added sugar. It also includes creatine, glutamine, and 20 essential vitamins and minerals to support strength, performance, and overall health.
Key Benefits- 1,250 Calories per Serve: Supports calorie surplus for serious mass and muscle gains.
- 50g Premium Protein Blend: Fuels muscle growth, recovery, and maintenance.
- 250g+ Complex Carbohydrates: Restores glycogen stores and provides sustained energy.
- With Creatine & Glutamine: Boosts strength, power, and muscle recovery.
- 20 Added Vitamins & Minerals: Comprehensive micronutrient support for overall wellbeing.
- No Added Sugar: Delivers clean calories without unnecessary sweeteners.
- Versatile Use: Ideal as a post-workout shake or between meals to meet macro goals.
New users: Start with ½ serving (1 scoop) daily to assess tolerance and digestion.
Regular use: Mix 2 scoops of Serious Mass with 700–720ml of cold water or milk using a blender for best results. You can add fruits, nut butter, or oats for extra calories if desired.
- Post-Workout: Consume immediately after training to maximize recovery and growth.
- Between Meals: Use as a calorie-dense meal supplement to help reach daily goals.
- Tip: Consistency is key — take daily for optimal results.
Protein Blend: Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, Sweet Dairy Whey.
Carbohydrate Matrix: Maltodextrin and other complex carbs to support glycogen replenishment.
Additional Nutrients: Creatine Monohydrate, Glutamine, Vitamins (A, C, D, E, B-Complex), and Minerals (Zinc, Magnesium, Calcium, Iron, etc.).
No added sugar. Gluten-free. Artificial flavouring varies by flavour option.
FAQWho should use Serious Mass?
Ideal for hard gainers, athletes, or anyone struggling to consume enough calories for muscle growth.
Can I take it as a meal replacement?
While nutrient-dense, it’s best used as a supplement to meals, not a replacement.
Is it suitable for beginners?
Yes — start with a smaller dose (½ serving) and increase gradually.
Does it contain creatine?
Yes, each serving contains creatine monohydrate for enhanced strength and recovery.
Store in a cool, dry place away from direct sunlight. Keep sealed when not in use. Suitable for adults only. Use as directed with a balanced diet and exercise program. Consult a healthcare professional before use if pregnant, nursing, or taking medication.
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