---
product_id: 777355679
title: "Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73 kg, Packaging May Vary"
brand: "optimum nutrition"
price: "€ 103.96"
currency: EUR
in_stock: true
reviews_count: 13
category: "Optimum Nutrition"
url: https://www.desertcart.pt/products/777355679-optimum-nutrition-serious-mass-protein-powder-high-calorie-mass-gainer
store_origin: PT
region: Portugal
---

# 3g Creatine for power 50g Protein muscle fuel 1250+ CAL per serving Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73 kg, Packaging May Vary

**Brand:** optimum nutrition
**Price:** € 103.96
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your mass game—because serious gains wait for no one.

## Quick Answers

- **What is this?** Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73 kg, Packaging May Vary by optimum nutrition
- **How much does it cost?** € 103.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/777355679-optimum-nutrition-serious-mass-protein-powder-high-calorie-mass-gainer)

## 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

- • **Calorie Powerhouse:** Fuel your gains with 1250+ calories per serving—because average just won’t cut it.
- • **Performance Booster:** 3 grams of creatine monohydrate to push your limits during every workout.
- • **Muscle Growth Maximizer:** 50 grams of premium whey protein concentrate to sculpt and repair like a pro.
- • **Versatile Flavor Lineup:** Six crave-worthy flavors from Chocolate to Cookies & Cream—customize your shake, never your goals.
- • **Vitamin & Mineral Complex:** 25 essential vitamins and minerals to keep your body optimized and recovery rapid.

## Overview

Optimum Nutrition Serious Mass is a high-calorie mass gainer powder delivering over 1250 calories, 50g of protein, and 3g creatine per serving. Enriched with 25 essential vitamins and minerals, it supports muscle growth, recovery, and performance. Available in six delicious flavors, it’s designed for athletes and fitness enthusiasts aiming for rapid, quality weight gain and muscle development.

## Description

Product Description Optimum Nutrition has been helping performance-focused athletes for over 35 years achieve their goals. This time, we bring you the intense and dialled-up version of our muscle-building and weight gain formula. Meet the Serious Mass high-calorie protein powder, designed for true sports enthusiasts and high-performance athletes. Serious Mass is the ultimate muscle-building and mass gainer formula. This protein powder makes the ideal post-workout and between meals shake for sizing up your goals. Every serving of this mass gainer contains 25 essential vitamins and minerals (including vitamin D, B12, E, Biotin and Magnesium), over 1,250 calories to boost your calorie intake, 50 grams of protein to support muscle growth* and 250 grams of carbohydrates helping support muscle recovery**. Plus, every serving has also been enriched with 3 grams of creatine monohydrate that increases your physical performance during high-intensity exercise***. Designed for the goal-focused athlete, our ON Serious Mass High Calorie Weight Gainer protein powder comes in 6 great tasting flavours: banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla. Blend this quality protein with fruit or nut butter for extra calories and discover your optimum taste combination. Serious Mass is quick, convenient, and easy to prepare: simply mix 2 heaped scoops with 710 ml of water or plant milk. Use it after intense training as a part of your recovery routine, between meals, and before bed to add calories, carbs, and protein to your healthy, balanced diet. * Source: EFSA Journal 2010;8(10):1811; 2011;9(6):2203 ** Source: EFSA Journal 2011;9(6):2211 ***Source: EFSA Journal 2011;9(7):2303 Ingredients EN INGREDIENTS: Corn Maltodextrin, WHEY Protein Concentrate [MILK] (Emulsifier: Lecithin [SOY]), Fat-Reduced Cocoa Powder, Creatine Monohydrate, Flavouring, MILK Mineral Complex, Minerals (Magnesium, Iron, Zinc, Manganese, Fluoride, Selenium, lodine, Copper, Molybdenum, Chromium), Vitamins (C, E, B3, A, B5, B7, B12, Guar Gum, Carrageenan), Sweetener (Sucralose). FOR ALLERGENS SEE INGREDIENTS CAPITALISED AND BOLD. May Contain: Gluten, Eggs, Nuts and Peanuts. B9, D, B6, Bl, K, B2), Salt, Stabilisers (Cellulose Gum, P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions Add 336 g (~ 2 heaped scoops) to a blender filled with 710 ml of water. Blend for 30-45 seconds. NOTE: To be used in the framework of a varied and balanced diet and a healthy lifestyle Safety Warning Always reseal after use, keep in cool dry place. Legal Disclaimer Product should not be used as a substitute for a varied diet. Do not exceed stated recommended daily dose. Keep out of reach of young children. Storage: always reseal after use, keep in a cool dry place. Box Contains 2.73 kg Manufacturer Contact Information 4 Waterside, Dublin 24, Ireland See more

Review: Really works well with combined body effort (working out, good regular eating habits) - This is soo good and tastes so delicious. Love the chocolate flavour I use it with oat milk and a little bit of water and crushed ice. Tastes like a milkshake. Sometimes I add a whole banana and peanut butter to pack in more calories. I can imagine if you drink cows milk you’d pack the weight on rapid. I have put on a stone using this but that was over a space of 6 or 7 months and I was drinking two a day but I’ve cut down to one or forget not good so I’ve had to go back to 1 a day then I’ll be back on 2. You can easily put pounds and stones on with this protein shake. You just have to be consistent really, along with eating. Consume more calories than you need (I’m 9.10st) trying to get to 11 tbh. I was eating pure beef burgers and just lean meat, bread and peanut butter along with any foods high in calorie that pack pounds on, that helped with the weight gain. Be consistent and you’ll get results. Lost count of how many I’ve brought tbh.
Review: Great taste - I’ve used this product on and off over several years. It really is good not full of garbage like you can find in other products of a similar nature. It’s a very well trusted brand vanilla or banana is my favorite as they both taste really good. You can probably use half of the recommended serving each time and still get great results. Just stick to a really good eating plan and you’ll feel the benefits of this.

## Features

- Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
- No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
- Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
- To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
- Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0015R36SK |
| ASIN  | B0015R36SK |
| Additives | L-Glutamine,Creatine |
| Age Range Description | Adult |
| Allergen Information | Contains: Egg may contain, Gluten may contain, Milk, Peanuts may contain, Soy |
| Best Sellers Rank | 516 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 4 in Protein Nutrition Blends |
| Brand | Optimum Nutrition |
| Country of origin | United Kingdom |
| Country of origin  | United Kingdom |
| Customer Reviews | 4.5 4.5 out of 5 stars (42,898) |
| Customer reviews | 4.5 4.5 out of 5 stars (42,898) |
| Date First Available | 28 Jun. 2009 |
| Format | Powder |
| Is discontinued by manufacturer  | Yes |
| Item model number  | 1101537 |
| Manufacturer  | OPTIG |
| Manufacturer contact | 4 Waterside, Dublin 24, Ireland |
| Product Dimensions  | 20.48 x 20.48 x 26.4 cm; 2.72 kg |
| Serving Recommendation | 334 g |
| Units | 2730.0 gram |
| Weight | 2.72 kg |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet type:** Vegan
- **Flavour:** Schokolade
- **Item weight:** 2.72 kg
- **Number of items:** 1
- **Package type:** Tub
- **Product benefits:** Muscle Growth
- **Recommended uses for product:** Post-Workout, Pre-Workout
- **Servings per container:** 8
- **Unit count:** 2730.0 gram

## Images

![Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73 kg, Packaging May Vary - Image 1](https://m.media-amazon.com/images/I/71dc4n65r3L.jpg)

## Questions & Answers

**Q: What's new with Serious Mass?**
A: Not only does Serious Mass have a fresh new look, but it also has added 3 grams of creatine to support your performance.

**Q: The label looks different compared to the previous one I got, is it still the same OPTIMUM NUTRITION product?**
A: As you evolve, so do we. The part of our mission is to help active individuals better understand OPTIMUM NUTRITION products. Now choosing the right product for you is easier with more visible product benefits, features and flavours on each tub.

**Q: The tub is not full to the brim when opened, why is that?**
A: This is completely normal and is to do with the way the powder is vacuum packed into the tub. The powder settles over time. This does not impact the weight or number of servings listed on the label.

**Q: What is the best way to prepare Serious Mass drink?**
A: To get the optimal consistency and prepare your drink in easy and convenient way, we recommend using a blender. For optimal use, follow serving instructions on pack.

**Q: Are the ingredients tested and safe?**
A: All of the ingredients in our products have been approved and considered safe for consumption by the European Food Safety Authority.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really works well with combined body effort (working out, good regular eating habits)
*by E***M on 20 January 2026*

This is soo good and tastes so delicious. Love the chocolate flavour I use it with oat milk and a little bit of water and crushed ice. Tastes like a milkshake. Sometimes I add a whole banana and peanut butter to pack in more calories. I can imagine if you drink cows milk you’d pack the weight on rapid. I have put on a stone using this but that was over a space of 6 or 7 months and I was drinking two a day but I’ve cut down to one or forget not good so I’ve had to go back to 1 a day then I’ll be back on 2. You can easily put pounds and stones on with this protein shake. You just have to be consistent really, along with eating. Consume more calories than you need (I’m 9.10st) trying to get to 11 tbh. I was eating pure beef burgers and just lean meat, bread and peanut butter along with any foods high in calorie that pack pounds on, that helped with the weight gain. Be consistent and you’ll get results. Lost count of how many I’ve brought tbh.

### ⭐⭐⭐⭐⭐ Great taste
*by S***M on 13 January 2026*

I’ve used this product on and off over several years. It really is good not full of garbage like you can find in other products of a similar nature. It’s a very well trusted brand vanilla or banana is my favorite as they both taste really good. You can probably use half of the recommended serving each time and still get great results. Just stick to a really good eating plan and you’ll feel the benefits of this.

### ⭐⭐⭐⭐ Best Mass Gainer I’ve Tried So Far
*by T***N on 1 December 2025*

Serious Mass is perfect for anyone trying to put on healthy weight and size. It mixes well, tastes great, and gives a big boost in calories without feeling heavy. I noticed improved energy, faster recovery, and steady weight gain within weeks. Definitely a reliable mass gainer!

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)
- Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 60 Servings, 300 Grams (Packaging May Vary)
- VELOMIX -2 Pack- 28 oz Protein Shaker Bottles for Protein Mixes - 2x Wire Whisk | Leak Proof Shaker Cups for Protein Shakes | Protein Shaker Bottle Pack | Shakers for Protein Shakes-Black&Transparent

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-28*