Product type
Mass Gainer
Price
Price
$129.99
Availability
Out of stock
Screen size
Screen resolution
RAM
Storage
CPU
Connectivity
Megapixels
Operation system
Product dimensions
Weight
Сountry of origin
Product information
Optimum Nutrition — Serious Mass (12 lbs)
Product Description
Optimum Nutrition Serious Mass is the ultimate weight gain and muscle-building formula, created for those who struggle to consume enough calories for growth. Each serving delivers a massive 1,250 calories, 50 grams of high-quality protein, and over 250 grams of carbohydrates — fueling muscle recovery and size without unnecessary fat. Designed for hard gainers and athletes with high energy demands, Serious Mass provides the nutrients you need to bulk up and build serious size, fast.
Key Benefits
-
1,250 calories per serving for maximum muscle growth
-
50 g of protein from a premium blend of whey, casein, and egg proteins
-
250+ g of complex carbohydrates for sustained energy and recovery
-
25 vitamins and minerals for overall health and performance
-
Creatine and Glutamine support strength and muscle repair
-
Mixes easily — no clumps or chalky texture
-
Ideal for hard gainers, athletes, and high-metabolism individuals
-
Available in rich flavors like Chocolate, Vanilla, Strawberry, and Banana
Why It Works
Serious Mass simplifies bulking by providing a calorie-dense, nutrient-rich shake that helps you meet your daily intake goals. The protein blend supports sustained muscle recovery, while complex carbs replenish glycogen and fuel performance. Added creatine and glutamine help boost strength and recovery, making it the perfect all-in-one mass gainer for building lean size and strength.
Directions
Mix 2 scoops with 24 oz of cold water or milk and blend for 30–60 seconds.
For beginners, start with ½ serving daily to assess tolerance and gradually increase.
Consume between meals, after workouts, or before bed for best results.
Ingredient Highlights
-
Protein Blend: Whey Protein Concentrate, Calcium Caseinate, Egg Albumin
-
Carbohydrate Matrix: Maltodextrin for sustained energy
-
Creatine Monohydrate & Glutamine – Strength and recovery support
-
Vitamin & Mineral Complex – Supports metabolism and performance
Nutritional Profile (Per Serving)
-
Calories: 1,250
-
Protein: 50 g
-
Carbohydrates: 252 g
-
Fat: 4.5 g
-
Sugar: 20 g
-
Creatine Monohydrate: 1 g
Allergen Information
Contains milk, egg, and soy (lecithin). Manufactured in a facility that also processes wheat, peanuts, and tree nuts.
Size & Servings
-
Net Weight: 12 lbs (5.44 kg)
-
Servings: ~16 per container
Related Products
You Will Also Like
FAQ
Do I really need supplements if I eat a healthy diet?
Supplements aren’t meant to replace real food — they complement your diet. Even with balanced eating, most people fall short on certain nutrients like Vitamin D, Omega-3s, or Magnesium. Supplements help fill those gaps, support performance, recovery, and overall wellness. The key is to use them strategically, not excessively.
When is the best time to take protein powder or pre-workout?
Protein powder: Best taken within 30–60 minutes after a workout to support muscle recovery and growth. It can also be used as a meal replacement or snack during the day.
Pre-workout: Take it 20–30 minutes before training for maximum energy, focus, and endurance during your session.
Are supplements safe to take every day?
Most high-quality supplements are safe when taken as directed. Always follow label dosages and consult your healthcare provider if you’re pregnant, nursing, or on medication. Choose trusted brands that are third-party tested and transparent about their ingredients — this ensures purity, potency, and safety.
- Choosing a selection results in a full page refresh.
!