Optimum Nutrition Serious Mass - 2.73kg
Optimum Nutrition Serious Mass - 2.73kg
In stock
Optimum Nutrition Serious Mass is a high-calorie weight gain formula designed to support muscle growth, recovery, and overall size development. Delivering over 1,250 calories per serving, along with quality protein, complex carbohydrates, creatine, and a full vitamin & mineral blend, it provides the nutritional support needed to fuel serious progress.
Perfect for hard gainers, athletes, and anyone struggling to increase calorie intake, Serious Mass helps you build size and strength without the guesswork.
Each serving provides 50g of protein, 250g of carbohydrates, and 3g of creatine to support performance, recovery, and muscle development.
Enjoy post-workout or between meals to support consistent calorie intake and steady muscle growth.
Why Choose Optimum Nutrition Serious Mass?
- 1,250+ calories per serving to support weight gain
- 50g protein to support muscle growth & recovery
- 250g carbohydrates for energy & size gains
- 3g creatine to support strength & performance
- 25 vitamins & minerals for daily nutrition support
- Ideal for hard gainers and strength athletes
- Great for post-workout or between meals
Product Overview
Product Overview
How To Use
How To Use
Serving Information
Serving Information
Whats In A Serving
Whats In A Serving
Ingredients
Ingredients
Allergen & Suitability
Allergen & Suitability
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What Is Mass Gainer?
Mass gainers are high-calorie supplements designed to support weight gain and muscle growth by increasing your daily intake of calories, protein and carbohydrates.
Often called weight gainers, they can be particularly useful for people who struggle to eat enough calories through food alone. When combined with progressive resistance training and a calorie surplus, mass gainers provide a convenient way to support muscle growth, recovery and increased body weight.
Benefits Of Mass Gainer
Helps Increase Calorie Intake
Mass gainers provide a convenient source of extra calories, making it easier to maintain the calorie surplus needed for weight and muscle gain.
Supports Muscle Growth
The protein in mass gainers provides essential amino acids needed for muscle protein synthesis, supporting muscle growth alongside resistance training.
Supports Training Recovery
Protein supports muscle repair and recovery, while carbohydrates help replenish energy following demanding workouts.
Convenient Nutrition
A mass gainer shake provides protein, carbohydrates and calories in one serving, making it easier to increase your daily intake without adding another large meal.
Who Should Use Mass Gainer?
Hard Gainers
Ideal for people who struggle to gain weight or consume enough calories through their normal diet.
Muscle-Building Goals
Useful for gym-goers in a muscle-building or bulking phase who need additional calories and protein to support growth.
Strength Athletes
Powerlifters, bodybuilders and strength-focused athletes can use mass gainers to help meet the higher calorie and protein demands of intense training.
Active People With High Calorie Needs
People with high training volumes or energy requirements may find mass gainers a convenient way to increase daily calorie intake and support recovery.
Choose Your Mass Gainer
High-Calorie Mass Gainers
Provide large amounts of calories and carbohydrates for people who find it difficult to maintain a calorie surplus.
Lean Mass Gainers
Offer a more controlled calorie intake with plenty of protein, making them suitable for a more gradual approach to gaining mass.
High-Protein Mass Gainers
Place greater emphasis on protein content while still providing additional carbohydrates and calories for muscle growth and recovery.
All-In-One Mass Gainers
Combine protein and carbohydrates with additional ingredients such as creatine, vitamins or minerals for more comprehensive nutritional support.
Mass Gainer FAQ
What does a mass gainer do?
What does a mass gainer do?
A mass gainer helps increase your daily calorie, protein and carbohydrate intake, making it easier to achieve the calorie surplus required for weight gain and muscle growth.
Do mass gainers help you build muscle?
Do mass gainers help you build muscle?
Yes, mass gainers can support muscle growth by providing additional calories and protein. However, building muscle still requires progressive resistance training and an appropriate overall diet.
Are mass gainers good for gaining weight?
Are mass gainers good for gaining weight?
Yes. Mass gainers are specifically designed to provide additional calories for weight gain, making them particularly useful for people who struggle to eat enough food to maintain a calorie surplus.
What's the difference between mass gainer and protein powder?
What's the difference between mass gainer and protein powder?
Protein powder primarily increases protein intake, while mass gainers provide significantly more calories and carbohydrates alongside protein. This makes mass gainers better suited to people actively trying to gain weight.
When should you take a mass gainer?
When should you take a mass gainer?
You can take a mass gainer whenever additional calories are needed. Popular times include after training, between meals or alongside your normal diet.
Can you take a mass gainer every day?
Can you take a mass gainer every day?
Yes, provided it fits your daily calorie and nutritional requirements. How often you need one depends on your diet, activity levels and weight-gain goals.
Can beginners use mass gainers?
Can beginners use mass gainers?
Yes. Beginners who struggle to consume enough calories can use a mass gainer to support weight gain and muscle-building goals, although it should complement rather than replace a balanced diet.
How do I choose the best mass gainer?
How do I choose the best mass gainer?
Compare the calories, protein, carbohydrates, ingredients and serving size. The best mass gainer should provide enough additional nutrition to help you reach your individual calorie and protein targets without unnecessarily exceeding them.
