---
product_id: 632075850
title: "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)"
brand: "optimum nutrition"
price: "34690 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Optimum Nutrition"
url: https://www.desertcart.is/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle
store_origin: IS
region: Iceland
---

# 22 vitamins & minerals 50g protein blend 1,250+ calories/serving Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)

**Brand:** optimum nutrition
**Price:** 34690 kr
**Availability:** ✅ In Stock

## Summary

> 💥 Bulk up smarter, not harder with Serious Mass!

## Quick Answers

- **What is this?** Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) by optimum nutrition
- **How much does it cost?** 34690 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle)

## Best For

- optimum nutrition enthusiasts

## Why This Product

- Trusted optimum nutrition brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Proven Popularity:** Trusted by thousands with a 4.5-star rating—join the serious mass movement.
- • **Calorie Powerhouse:** Fuel your gains with over 1,200 calories per serving—because size matters.
- • **Muscle Recovery Boost:** 50 grams of premium blended protein to accelerate muscle repair and growth.
- • **Customizable Nutrition:** Blend with fruits, nuts, or peanut butter for a personalized calorie and flavor upgrade.
- • **Immune Defense Formula:** Packed with 22 essential vitamins and minerals including Vitamin C, D, and Zinc to keep you strong.

## Overview

Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,250+ calories and 50g of protein per serving, enriched with 22 vitamins and minerals for immune support. Ideal for post-workout recovery and muscle growth, it offers versatile blending options to customize your nutrition and is highly rated by fitness enthusiasts worldwide.

## Description

Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted.

Review: Ottimi effetti e gusto davvero piacevole. Richiede un po’ più tempo per sciogliersi in acqua, ma le porzioni sono abbondanti e soddisfacenti.
Review: Es de muy buena calidad y precio

## Features

- High calorie weight gainer: more than 1,200 calories per 2-scoop serving
- 50 grams of blended protein per serving
- Over 250 of carbohydrates per serving
- 22 vitamins and minerals including Vitamin C, Vitamin D, and Zinc to provide immune support
- More versatility: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00OV0VYHI |
| ASIN  | B00OV0VYHI |
| Age Range Description | Adult |
| Best Sellers Rank | #42,895 in Health ( See Top 100 in Health ) #1,727 in Sports Supplements |
| Brand | Optimum Nutrition |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,583) |
| Customer reviews | 4.5 4.5 out of 5 stars (5,583) |
| Date First Available | 5 January 2015 |
| Format | Powder |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1056371 |
| Manufacturer  | Glanbia Performance Nutrition |
| Product Dimensions  | 29.21 x 13.97 x 40.64 cm; 5.44 kg |
| Taste | Chocolate |
| Units | 5443.1 Grams |
| Weight | 12.83 Pounds |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet type:** Vegetarian
- **Flavour:** Chocolate Peanut Butter
- **Item weight:** 12 Pounds
- **Material type free:** Caffeine Free

## Images

![Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/511yjH27xML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***N on 12 October 2025*

Ottimi effetti e gusto davvero piacevole. Richiede un po’ più tempo per sciogliersi in acqua, ma le porzioni sono abbondanti e soddisfacenti.

### ⭐⭐⭐⭐⭐ Review
*by M***A on 15 October 2025*

Es de muy buena calidad y precio

### ⭐⭐⭐⭐⭐ Review
*by J***T on 10 April 2021*

Like the flavour.

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)
- Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 120 Servings, 600 Grams (Packaging May Vary)

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**Shop now:** [https://www.desertcart.is/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle](https://www.desertcart.is/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-27*