Optimum Nutrition Serious Mass 12 lbs

Product Overview

Optimum Nutrition Serious Mass 12 lbs is a high-calorie mass gainer supplement designed for people who want to gain body weight and build muscle mass. It provides a large amount of calories, protein, carbohydrates, creatine, and vitamins to support muscle growth, recovery, and strength. (Optimum Nutrition)

Main Ingredients

1. Protein Blend

• Whey Protein Concentrate
• Calcium Caseinate
• Whey Powder
• Egg Albumin

These protein sources supply essential amino acids that help build and repair muscle tissue after workouts. (HealthXP)

2. Carbohydrate Complex

• Maltodextrin (main carbohydrate source)

This provides fast energy and helps replenish muscle glycogen after intense training. (HealthXP)

3. Performance Ingredients

• Creatine Monohydrate
• L-Glutamine
• Glutamine Peptides

These ingredients support muscle strength, recovery, and performance during workouts. (GNC)

4. Amino Acids

• BCAA (Branched Chain Amino Acids)
• Essential Amino Acids (EAAs)

These amino acids help muscle recovery, reduce muscle breakdown, and support muscle growth. (Optimum Nutrition)

5. Additional Nutrients

• Choline
• Inositol
• PABA
• MCT (Medium Chain Triglycerides)

These help support metabolism, energy production, and overall health. (GNC)

6. Vitamins and Minerals

It contains about 25 vitamins and essential minerals, including:

• Vitamin A
• Vitamin C
• Vitamin D
• Vitamin E
• Vitamin B-Complex
• Calcium
• Iron
• Zinc
• Magnesium
• Potassium

These nutrients help support immune health, energy production, and overall body function. (GNC)

Nutrition Facts (Approx. per Serving – 2 Scoops / 334 g)

• Calories: about 1250 kcal
• Protein: 50 g
• Carbohydrates: about 250 g
• Fat: about 4–5 g
• Creatine: about 3–5 g
• Glutamine: about 500 mg

This high-calorie formula helps people increase daily calorie intake for weight gain. (GNC)

Benefits / What It Does

1. Supports Weight Gain

Provides over 1200 calories per serving, helping increase calorie intake for weight gain. (Optimum Nutrition)

2. Builds Muscle Mass

50 g of protein helps stimulate muscle protein synthesis and muscle growth.

3. Improves Strength

Creatine helps increase power, strength, and workout performance.

4. Faster Muscle Recovery

Glutamine and amino acids help repair muscles after intense workouts.

5. Provides Energy for Training

High carbohydrates help fuel workouts and replenish glycogen.

6. Supports Overall Health

Vitamins and minerals support immunity, metabolism, and energy production.

How to Use (Serving Instructions)

Serving Size:

• Mix 2 heaping scoops (about 334 g) with 600–700 ml water or milk in a blender.

Recommended Use:

• Take 1 serving per day.

Best Time to Take:

1. After workout
2. Between meals
3. In the morning if extra calories are needed

Beginner Tip:
Start with half serving (1 scoop) for the first week, then increase to a full serving. (Optimum Nutrition)

Storage Instructions

• Store in a cool and dry place
• Keep away from direct sunlight
• Keep out of reach of children

✅ Best For

• Hard gainers
• Bodybuilders
• Athletes in bulking phase
• People with low body weight

Made in the USA