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Optimum Nutrition Serious Mass Gainer Powder, Vanilla, 12 lbs (5.44kg)

Name: Optimum Nutrition Serious Mass Gainer Powder, Vanilla, 12 lbs (5.44kg)
Brand: Optimum Nutrition
Availability: InStock

by Optimum Nutrition

In stockChecked 11h ago

$149.95

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Last 90 days at this store

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Details

Brand: Optimum Nutrition
Category: Beauty & Health

What UNICASH checked

Price checked against Australian Health & Nutrition on 13 Oct 2026.

Description from Australian Health & Nutrition

Optimum Nutrition Serious Mass

High-Calorie Weight Gainer for Size & Strength

Serious Mass is the ultimate formula for those looking to gain size and increase daily calorie intake. Delivering 1,250 calories per serving, this powerful weight gainer is designed to support muscle growth, recovery, and overall weight gain when combined with consistent training and a balanced diet.

Each serving provides 50g of high-quality protein to help support muscle recovery and maintenance, making it an ideal shake for post-workout nutrition or between meals when additional calories are needed. The instantised powder mixes easily, creating a convenient and effective way to fuel your body and support your mass-building goals.

Whether you're struggling to gain weight or simply looking to increase your calorie intake to support intense training, Serious Mass provides the nutritional support to help you build the physique you're working toward.

Key Features

• 1,250 calories per serving
• 50g of protein to support muscle recovery
• Designed to support weight gain and muscle growth
• Ideal for post-workout or between meals
• Easy-mixing instantised powder
• From the trusted Optimum Nutrition range