---
product_id: 47941572
title: "Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings"
brand: "optimum nutrition"
price: "853.37 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Optimum Nutrition"
url: https://www.desertcart.tn/products/47941572-optimum-nutrition-serious-mass-protein-powder-2-73-kg-8
store_origin: TN
region: Tunisia
---

# 3g Creatine for power 50g Protein muscle fuel 1250+ CAL per serving Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings

**Brand:** optimum nutrition
**Price:** 853.37 DT
**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, 2.73 kg 8 Servings by optimum nutrition
- **How much does it cost?** 853.37 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/47941572-optimum-nutrition-serious-mass-protein-powder-2-73-kg-8)

## 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

- • **Performance Boost:** 3 grams of creatine monohydrate to elevate your workout intensity and recovery.
- • **Calorie Powerhouse:** Fuel your gains with 1250+ calories per serving—because average just won’t cut it.
- • **Clean & Nutrient-Rich:** No added sugar, packed with 25 essential vitamins & minerals to keep you balanced and energized.
- • **Muscle Growth Maximizer:** 50 grams of premium protein to sculpt and support serious muscle development.
- • **Flavor Variety & Convenience:** Six crave-worthy flavors and easy mixability for a delicious, anytime muscle-building shake.

## Overview

Optimum Nutrition Serious Mass is a high-calorie weight gainer designed for athletes and professionals aiming to bulk up efficiently. Each serving delivers over 1250 calories, 50 grams of protein, and 3 grams of creatine monohydrate, complemented by 25 essential vitamins and minerals. With six delicious flavors and a low-fat, no added sugar formula, it supports muscle growth, recovery, and performance in a convenient, easy-to-mix powder.

## Description

Directions Between Meals: Drink 1/2-1 serving of Serious Mass between meal to support a high-calorie diet. Post- Workout:Drink 1/2-1 serving of Serious Mass 30-45 minutes following exercise. Before Bed: Drink 1/2-1 serving of Serious Mass about 45-60 minutes before bed to provide nutrients to musle throughout the night.Suggested Use: For healthy adults consume enough energy from a combination of high quality fooods and supplements throughout the day as part of a balanced diet and exercise programme. 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 Maltodextrin, WHEY Protein Concentrate [MILK], Calcium CASEINATE [MILK], Creatine Monohydrate, Flavourings, MILK Mineral Complex, Medium Chain Triglycerides [MILK], EGG Albumen, Dipotassium Phosphate, Colour (Beetroot Red), Sodium Chloride, Vitamin & Mineral Blend (Sodium L-Ascorbate, Ferric Pyrophosphate, D-Alpha-Tocopheryl Acetate, Nicotinamide, Zinc Oxide, Retinyl Acetate, Calcium D-Pantothenate, Sodium Fluoride, Manganese Sulphate, Potassium Iodate, Cyanocobalamin, D-Biotin, Chromium (III) Chloride, Pteroylmonoglutamic Acid, Cholecalciferol, Sodium Selenite, Cupric Citrate, Pyridoxine Hydrochloride, Thiamine Hydrochloride, Phylloquinone, Riboflavin, Sodium Molybdate), Glutamine Peptides [WHEAT GLUTEN], L-Glutamine, Magnesium Oxide, WHEY Powder [MILK], Inositol, L-Ascorbic Acid, Sweetener (Sucralose), Antioxidant (Tocopherol-Rich Extract), Calcium D-Pantothenate, Pteroylmonoglutamic Acid. Safety Warning Always reseal after use, keep in cool dry place. Legal Disclaimer Food supplements 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.Allergen information: Contains gluten, egg, milk May contain: peanuts, soy, nuts Manufacturer Contact Information 4 Waterside, Dublin 24, Ireland

Review: Tastes great for a mass gainer – very sweet, best mixed in a blender - Surprisingly nice for a mass gainer. It is quite sweet, so be prepared for that, but the strawberry flavour is one of the best I’ve had compared to other mass gainers or protein shakes. One thing I noticed with my first tub was that the lid looked like it had been pierced with a needle. I contacted Optimum Nutrition directly, and they confirmed this is normal for transport to prevent pressure build-up, so nothing to worry about. Definitely recommend using a blender to mix this rather than a standard shaker. It’s quite thick and a shaker doesn’t really do it justice. Overall, a solid mass gainer that tastes good and mixes well when done properly.
Review: Very good for putting on weight. A fast method of increasing your calorie intake - This was my second purchase of the Serious Mass Protein Powder. I did not buy it for training or body building sport. I developed a temporary condition that made me inactive for a couple of months. During this time I was not eating properly or getting any exercise. I dropped from my normal and average muscular 12 stone frame to 10.5 stone in weight. I looked at reviews on products for putting on weight and the feedback on this product was really good. My own experience is that it worked for me and in only two purchases over two months I regained my weight. It was very good value for money for my situation. The taste was more bland than a fruit juice but not unpleasant in any way. I used a hand blender to mix it and this made it smooth without any dry lumps. I recommend it for putting on weight. I was able to double my eating calorie intake each day. As for body building sports, I cannot feedback on that since I think it would take a bit longer to assess.

## 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 | B0015R36XU |
| Age Range Description | Adult |
| Allergen Information | Contains: Milk may contain |
| Benefits | Weight Gain |
| Best Sellers Rank | 542 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 29 in Whey Nutrition Protein |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.4 out of 5 stars 5,907 Reviews |
| Diet Type | Vegetarian |
| Diet type | Vegetarian |
| Flavour | Strawberry |
| Global Trade Identification Number | 00748927023015 |
| Item Dimensions | 20.3 x 20.3 x 25.7 centimetres |
| Item Weight | 2.73 Kilograms |
| Item weight | 2.73 Kilograms |
| Manufacturer | OPTIG |
| Manufacturer Contact Information | 4 Waterside, Dublin 24, Ireland |
| Manufacturer Part Number | 1031919 |
| Material Type Free | Sugar Free |
| Model Name | Optimum Nutrition Serious |
| Model Number | 1031919 |
| Net Content Volume | 11.91 Litres |
| Number of Items | 1 |
| Package Type Name | Tub |
| Protein | 15 g |
| Recommended Uses For Product | Post-Workout, Pre-Workout |
| Servings per container | 8 |
| Total Servings Per Container | 8 |
| UPC | 748927023015 |
| Unit Count | 2730.0 gram |
| Vitamins And Minerals | 0.6 g |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet type:** Vegetarian
- **Flavour:** Strawberry
- **Item weight:** 2.73 Kilograms
- **Material Type Free:** Sugar Free
- **Number of items:** 1
- **Product benefits:** Weight Gain
- **Recommended uses for product:** Post-Workout, Pre-Workout
- **Servings per container:** 8
- **Unit count:** 2730.0 gram

## Images

![Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings - Image 1](https://m.media-amazon.com/images/I/71E6czTt2VL.jpg)
![Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings - Image 2](https://m.media-amazon.com/images/I/71ci-BlfD-L.jpg)
![Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings - Image 3](https://m.media-amazon.com/images/I/81mfdJ3SMWL.jpg)
![Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings - Image 4](https://m.media-amazon.com/images/I/81CWRrI8I-L.jpg)
![Optimum Nutrition Serious Mass Protein Powder, 2.73 kg 8 Servings - Image 5](https://m.media-amazon.com/images/I/710NjROeSZL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## 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

### ⭐⭐⭐⭐⭐ Tastes great for a mass gainer – very sweet, best mixed in a blender
*by J***E on 6 April 2026*

Surprisingly nice for a mass gainer. It is quite sweet, so be prepared for that, but the strawberry flavour is one of the best I’ve had compared to other mass gainers or protein shakes. One thing I noticed with my first tub was that the lid looked like it had been pierced with a needle. I contacted Optimum Nutrition directly, and they confirmed this is normal for transport to prevent pressure build-up, so nothing to worry about. Definitely recommend using a blender to mix this rather than a standard shaker. It’s quite thick and a shaker doesn’t really do it justice. Overall, a solid mass gainer that tastes good and mixes well when done properly.

### ⭐⭐⭐⭐⭐ Very good for putting on weight. A fast method of increasing your calorie intake
*by S***E on 15 January 2026*

This was my second purchase of the Serious Mass Protein Powder. I did not buy it for training or body building sport. I developed a temporary condition that made me inactive for a couple of months. During this time I was not eating properly or getting any exercise. I dropped from my normal and average muscular 12 stone frame to 10.5 stone in weight. I looked at reviews on products for putting on weight and the feedback on this product was really good. My own experience is that it worked for me and in only two purchases over two months I regained my weight. It was very good value for money for my situation. The taste was more bland than a fruit juice but not unpleasant in any way. I used a hand blender to mix it and this made it smooth without any dry lumps. I recommend it for putting on weight. I was able to double my eating calorie intake each day. As for body building sports, I cannot feedback on that since I think it would take a bit longer to assess.

### ⭐⭐⭐⭐ Lovely
*by C***R on 29 March 2026*

Love this stuff. Taste great mixes well. Seen results on the scales adding this to the diet. Just a shame on the price. But saying that the cheaper ones are cheaper for a reason

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Strawberry, 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-08-09*