🏆 Optimum Nutrition Serious Mass — Pakistan’s #1 High-Calorie Mass Gainer

Buy Optimum Nutrition Serious Mass Gainer Protein Powder 6LBS In Pakistan

For hardgainers, fast metabolisms, and athletes chasing serious size — Optimum Nutrition Serious Mass is the ultimate solution. As the world’s highest-calorie weight gain formula, it delivers up to 1,260 calories, 50g of protein, up to 253g of carbohydrates, and 5g of creatine monohydrate in every single serving — everything your body needs to break through plateaus and build real, measurable mass. Available now at ARNutrition.pk at the best price in Pakistan with 100% authenticity guaranteed.

Explore our complete range of ➡️ Best Mass Gainers in Pakistan and find the best option for your bulking goals.

🔍 What is Optimum Nutrition Serious Mass?

Buy Optimum Nutrition Serious Mass Gainer 12lbs Protein Powder In Pakistan

Optimum Nutrition Serious Mass is a premium mass gainer powder from ON — the world’s #1 sports nutrition brand. It is engineered specifically for individuals who struggle to consume enough calories through whole foods alone. Whether you have a high metabolism, a weaker appetite, or an on-the-go lifestyle, Serious Mass provides a convenient and effective solution to support your weight gain and muscle-building goals. One shake. Serious results.

🧪 Key Ingredients & Formula

Nutrition Facts Of Optimum Nutrition Serious Mass Gainer

Optimum Nutrition Serious Mass packs a fully loaded nutritional profile in every serving:

• 🥛 Protein Blend — Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, and Sweet Dairy Whey delivering both fast and sustained amino acid release for all-day muscle support
• 🔥 5g Creatine Monohydrate — supports explosive strength, power output, and muscle growth during high-intensity training
• 💪 8g L-Glutamine — naturally occurring glutamine per serving to accelerate post-workout recovery and reduce muscle breakdown
• ⚡ 11g BCAAs + 24g EAAs — a full spectrum of essential and branched-chain amino acids for optimal muscle protein synthesis
• 🌿 25 Vitamins & Minerals — including Vitamins A, C, E, B-Complex, and Zinc to support immune health and convert food into cellular energy
• 🧠 Choline, Inositol & MCTs — added performance boosters for energy metabolism and cognitive support during intense training phases

💪 Key Benefits of Optimum Nutrition Serious Mass

📈 Explosive Caloric Surplus for Maximum Size

The biggest challenge for hardgainers is consuming enough calories to grow. Optimum Nutrition Serious Mass solves this completely — packing over 1,250 calories, 50 grams of protein, and 252 grams of carbohydrates into every serving, with no added sugar. That’s a full meal’s worth of mass-building nutrition in one convenient shake, making caloric surplus finally achievable without forcing down excessive food.

🏋️ Superior Muscle Growth & Strength

Every scoop of Optimum Nutrition Serious Mass fuels genuine muscle development. The multi-source protein blend delivers amino acids rapidly and continuously, supporting muscle protein synthesis throughout the day and night. Combined with 5g of creatine monohydrate, this formula actively increases your strength output and physical performance during every training session — so you don’t just gain weight, you gain muscle.

⚡ Faster Recovery & Glycogen Replenishment

Training hard depletes your glycogen stores and breaks down muscle tissue. Optimum Nutrition Serious Mass is formulated to reverse both. Over 250 grams of carbohydrates per serving aid in muscle recovery and replenish glycogen stores after intense workouts, while L-Glutamine supports tissue repair and reduces next-day soreness — so you’re ready to train again sooner and harder.

For a leaner bulk, check out Kevin Levrone Gold Lean Mass— ideal for clean muscle gains without excess fat.

📋 How to Use Optimum Nutrition Serious Mass?

Getting the most out of Optimum Nutrition Serious Mass is simple:

• 🥄 Serving: Add 2 heaping scoops (~334g) to a blender with 700–750ml of cold water or milk
• 🏋️ Post-Workout: Consume within 30–45 minutes after training to maximize recovery and muscle growth
• 🍽️ Between Meals: Use half a serving between meals to maintain a consistent caloric surplus throughout the day
• 🥤 Pro Tip: Mix with low-fat milk instead of water for an extra 390+ calories and a creamier, richer shake
• 📅 New Users: Start with half a serving (1 scoop) for the first week to allow your digestive system to adjust

⚠️ Not suitable for individuals under 18 years of age. Do not use if pregnant or nursing. Store in a cool, dry place away from direct sunlight.

Want an anabolic mass formula? Also try ➡️ Kevin Levrone Anabolic Mass

❓ Frequently Asked Questions

🇵🇰 What is the price of Optimum Nutrition Serious Mass in Pakistan?

The price of Optimum Nutrition Serious Mass in Pakistan varies depending on the size — typically available in 6lb and 12lb options. At ARNutrition.pk, we offer the most competitive and up-to-date pricing with a 100% authenticity guarantee. Visit our product page or reach out to our support team for the latest price.

🏆 Is Optimum Nutrition Serious Mass the best mass gainer for skinny guys in Pakistan?

Yes — Optimum Nutrition Serious Mass is one of the best mass gainers for skinny guys and hardgainers in Pakistan. With over 1,250 calories per serving, multi-source protein, creatine, glutamine, and 25 vitamins and minerals — it provides everything your body needs to gain serious size even when your appetite or metabolism works against you. Pair it with a structured training program for best results.

Q: What is the best mass gainer for beginners in Pakistan?

A: ON Serious Mass is perfect for beginners. For advanced users looking for anabolic support, check out Russian Bear 10000 Mass Gainer or for a high-calorie extreme formula try MuscleTech MassTech Extreme 2000

🛒 Why Buy from ARNutrition.pk?

• ✅ 100% Authentic Supplements Guarantee

• 🚚 Free & Fast Delivery All Over Pakistan

• 💰 Competitive Prices & Regular Deals

• ⭐ 150,000+ Happy Customers

• 🏆 6+ Years of Trust in Sports Nutrition

🛡️ At ARNutrition.pk, every tub of Optimum Nutrition Serious Mass is sourced from authorized distributors and verified for 100% authenticity. We deliver nationwide across Pakistan — Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, and beyond — with Cash on Delivery available. Your gains are our guarantee. 💯

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