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Servings
16
Price/serv
23.69
Price
379.00
Optimum Nutrition

Optimum Nutrition Serious Mass Weight Gainer Vanilla 12 LB

Good for:HardgainersBulking PhasePost-Workout RecoveryAthletes Increasing Muscle MassHigh-Intensity TrainersPeople with High Caloric Needs
379.00
401.06
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1
  • Supports rapid weight and muscle gain
  • Delivers 1,250 calories per serving for aggressive bulking
  • Provides 50g of blended protein for sustained muscle repair

Benefits

  • Muscle & Performance
  • Weight Management

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Whey Protein Concentrate

A fast-digesting, high-quality protein source that rapidly delivers amino acids to muscles post-workout to kick-start repair and growth.

Micellar Casein

A slow-releasing protein that provides a sustained supply of amino acids over several hours, ideal for preventing muscle breakdown between meals.

Egg Albumin

A complete protein with a high biological value, contributing to the blended protein profile for both immediate and extended amino acid delivery.

Creatine Monohydrate

One of the most researched sports supplements, creatine supports increased strength, power output, and muscular endurance during high-intensity training.

L-Glutamine

The most abundant amino acid in muscle tissue, glutamine supports post-exercise recovery, immune function, and gut health.

Complex Carbohydrates (Maltodextrin)

Provides a dense caloric base from carbohydrates to replenish glycogen stores and sustain energy levels throughout the day.

Optimum Nutrition Serious Mass Weight Gainer Vanilla 12 LB

Optimum Nutrition Serious Mass is the ultimate high-calorie weight gain formula engineered for hardgainers and athletes who struggle to pack on size. Each massive serving delivers 1,250 calories, 50g of blended protein, and 252g of carbohydrates to fuel your most demanding training sessions and support serious muscle recovery.

Whether you are bulking up for competition or simply trying to build a bigger, stronger physique, Serious Mass gives your body the raw fuel it needs to grow. With added vitamins, minerals, creatine, and glutamine, this isn't just a calorie supplement — it is a complete muscle-building system in every scoop.

Why Athletes Choose Serious Mass

Imagine finishing a gruelling workout and knowing that your recovery shake is already doing the heavy lifting. A rich, creamy vanilla shake that mixes smoothly, sits comfortably, and delivers the nutrients your muscles are starving for. That is Serious Mass — your most reliable training partner in a tub.

Highlights

  • 1,250 calories per serving to support aggressive weight gain
  • 50g of blended protein including whey, casein, and egg for sustained amino acid release
  • 252g of carbohydrates to replenish glycogen and fuel performance
  • Enriched with 25 vitamins and minerals for complete micronutrient support
  • Added creatine and glutamine for enhanced strength and recovery
  • Available in delicious Vanilla flavour
  • 12 LB tub for extended use

Directions

Mix 2 heaping scoops with 24 oz of water or milk. Consume once or twice daily between meals or post-workout. For best results combine with regular strength training and a balanced diet.

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Allergy information

Contains milk, egg, and soy. Manufactured in a facility that also processes wheat, peanuts, and tree nuts.

Fits your routine

2 Heaping Scoops (334g)

Label directions: Mix 2 heaping scoops (approximately 334g) with 24 oz of cold water or milk in a blender.

Slot
Morning · Evening

From the product label. A planning tool, not medical advice. You can change everything afterwards.

How to Use

Mix 2 heaping scoops (approximately 334g) with 24 oz of cold water or milk in a blender. Use once or twice daily between meals or immediately after training. Adjust liquid to taste preference.

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