High-Calorie Formula → Over 1200 calories per serving to support mass gain Muscle Growth Support → Includes quality protein for recovery and development Carb-Loaded Energy → Fuels intense workouts and replenishes glycogen Easy Weight Gain → Ideal for hardgainers and fast metabolisms Added Vitamins & Minerals → Supports overall health and performance

Protein Blend Supports muscle repair and growth after training. Carbohydrate Matrix Provides fast and sustained energy for workouts and recovery. Creatine & Glutamine (depending on version) Helps improve strength and recovery. Vitamins & Minerals Supports metabolism and overall performance.

Optimum Nutrition Serious Mass 12lbs

Q: Usage & Timing

Take 1 serving daily or split into 2 smaller shakes Best taken: After workouts Between meals Before bed for extra calories 💡 Tip: Blend with milk, peanut butter, or oats for even more calories

Q: FAQ - What Customer Ask

Is Serious Mass good for beginners? Yes, it’s ideal for beginners who need extra calories to start gaining weight. Will Serious Mass make me gain fat? Weight gain depends on your total calorie intake. Combine with training for best results. Can I take it without working out? Yes, but for optimal muscle gain, resistance training is recommended. How fast will I see results? Most users notice weight gain within a few weeks when used consistently.

$139.95 CAD

Flavor

Chocolate Vanilla

Pickup available at Vikings Nutrition

Usually ready in 1 hour

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Over 10,000 Customers Trust Us Daily — 4.9★ Ratingl Fast 1–3 Day Delivery l

Serious Mass is a high-calorie weight gainer designed for those who struggle to gain weight and muscle. With a powerful blend of protein, carbohydrates, and essential nutrients, it helps you increase your daily calorie intake and support rapid muscle growth.

More info about this formula

Discover the formula

Benefits & Results

High-Calorie Formula → Over 1200 calories per serving to support mass gain
Muscle Growth Support → Includes quality protein for recovery and development
Carb-Loaded Energy → Fuels intense workouts and replenishes glycogen
Easy Weight Gain → Ideal for hardgainers and fast metabolisms
Added Vitamins & Minerals → Supports overall health and performance

Inside the formula

Protein Blend
Supports muscle repair and growth after training.
Carbohydrate Matrix
Provides fast and sustained energy for workouts and recovery.
Creatine & Glutamine (depending on version)
Helps improve strength and recovery.
Vitamins & Minerals
Supports metabolism and overall performance.

Usage & Timing

Take 1 serving daily or split into 2 smaller shakes

Best taken:

After workouts

Between meals

Before bed for extra calories

💡 Tip: Blend with milk, peanut butter, or oats for even more calories

More About the Products

Serious Mass is designed for individuals who have difficulty gaining weight through food alone. Whether you’re a beginner or an experienced lifter, this formula helps you reach your calorie surplus efficiently.

It’s one of the most popular weight gainers worldwide thanks to its high-calorie profile and easy-to-mix formula.

FAQ - What Customer Ask

Is Serious Mass good for beginners?

Yes, it’s ideal for beginners who need extra calories to start gaining weight.

Will Serious Mass make me gain fat?

Weight gain depends on your total calorie intake. Combine with training for best results.

Can I take it without working out?

Yes, but for optimal muscle gain, resistance training is recommended.

How fast will I see results?

Most users notice weight gain within a few weeks when used consistently.

Optimum Nutrition Serious Mass 12lbs