---
product_id: 415353213
title: "Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian"
brand: "optimum nutrition"
price: "€ 30.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "Optimum Nutrition"
url: https://www.desertcart.ie/products/415353213-optimum-nutrition-on-serious-mass-high-protein-high-calorie-weight
store_origin: IE
region: Ireland
---

# 250g+ Carbs for energy boost 50g Protein for muscle recovery 1200+ Calories per serving Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian

**Brand:** optimum nutrition
**Price:** € 30.74
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk Up or Miss Out: The Ultimate Weight Gainer for Serious Achievers

## Quick Answers

- **What is this?** Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian by optimum nutrition
- **How much does it cost?** € 30.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/415353213-optimum-nutrition-on-serious-mass-high-protein-high-calorie-weight)

## 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

- • **Massive Calorie Surge:** Fuel your gains with 1200+ calories per 2-scoop serving—perfect for those who burn fast and build faster.
- • **Carb-Loaded Energy Boost:** Over 250 grams of carbohydrates to keep your energy levels sky-high between workouts and meals.
- • **Trusted Quality & Purity:** Crafted in a world-class facility with imported European ingredients, sealed for freshness and safety.
- • **Vitamins & Minerals Matrix:** 23+ essential vitamins and minerals to support overall health and optimize your body’s performance.
- • **Protein-Powered Muscle Repair:** 50 grams of premium protein to accelerate muscle recovery and amplify your workout results.

## Overview

Optimum Nutrition Serious Mass is a high-calorie, high-protein vegetarian weight gainer powder designed for individuals with fast metabolisms or high energy demands. Each 2-scoop serving delivers 1200+ calories, 50 grams of protein, and over 250 grams of carbohydrates, enriched with 23+ vitamins and minerals, creatine, and glutamine. Manufactured in India with imported European ingredients and certified for quality, it’s ideal for post-workout recovery and between-meal supplementation to help you gain muscle mass effectively.

## Description

SERIOUS MASS is the ultimate weight gain and muscle building formula. With +1200 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this 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 support your weight gain goals.

Review: Who said it’s fake and bad product? - Some in the review says that it was a fake product or it contained worms, however it’s totally not true. So I got the parcel today within the expected delivery date and checked the authentication. It found that it was 100% authentic product and the quality of the powder is very good. So, it’s up to you which reviews you want to trust, however don’t just blindly believe whatever you see. Because I was the one who was disappointed with buying this from this seller after seeing the low stared reviews, but the product I got was true one and the quality is good tho.
Review: Dr Arjun - its a good product but inside scoop missing i want that scoop

## Features

- What is Serious Mass: Vegetarian Optimum Nutrition Serious Mass is a high calorie weight gainer which is also high in protein and when taken over time with regular resistance exercise and a balanced diet can help you gain mass and muscle
- Who Needs Serious Mass: People with very active metabolism that struggle to gain weight; Athletes or anyone who has extremely high energy needs that can-not be met only with food
- What's in Serious Mass: 1200+ Calories, 50 Grams of standard Protein and over 250 Grams of Carbohydrates per Serving with 23+ Vitamins & Minerals, Creatine & Glutamine
- When to Consume: Use post-workout and/or between meals to add calories, carbs and protein to your healthy, balanced diet
- How to Use: Prepare using an electric blender. Add fresh or frozen fruits, peanut butter, nuts & other calorie dense foods to boost your weight gain potential
- Purity - The neck of the tub is sealed with an induction vented liner inside the cap. The product has a plastic shrink wrap seal around the cap (outside) for protection
- Our Ingredients are imported from Europe. Blending is done at a world class facility in India carrying the standard and safety certifications like NSF, FSSC 22000 and OHSAS 18001
- Country of Origin: India (Product designed in the USA)
- Note - Product should be tightly sealed after each and every use. Please store in a cool and dry place. Avoid direct sunlight

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QXVR8DC |
| ASIN  | B09QXVR8DC |
| Best Sellers Rank | #1,171 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #2 in Mass & Weight Gainers |
| Country of Origin | India |
| Country of Origin  | India |
| Customer Reviews | 3.9 3.9 out of 5 stars (3,134) |
| Date First Available  | 21 January 2022 |
| Generic Name | Weight Gain Powder |
| Generic Name  | Weight Gain Powder |
| Included Components | OPTIMUM NUTRITION |
| Included Components  | OPTIMUM NUTRITION |
| Item Dimensions LxWxH | 25 x 15 x 15 Centimeters |
| Item Dimensions LxWxH  | 25 x 15 x 15 Centimeters |
| Item Weight | 1 kg |
| Item Weight  | 1 kg |
| Item model number | 1115236 |
| Item model number  | 1115236 |
| Manufacturer | Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt. Ltd., Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India. |
| Manufacturer  | Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt. Ltd., Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India. |
| Net Quantity | 1000.0 Grams |
| Net Quantity  | 1000.0 Grams |
| Packer | Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India |
| Packer  | Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India |
| Product Dimensions | 25 x 15 x 15 cm; 1 kg |
| Product Dimensions  | 25 x 15 x 15 cm; 1 kg |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet Type:** Vegetarian
- **Flavour:** Vanilla
- **Item Form:** Powder
- **Item Weight:** 1000 Grams
- **Item dimensions L x W x H:** 25 x 15 x 15 Centimeters
- **Net Quantity:** 1000.0 Grams
- **Primary Supplement Type:** Creatine
- **Product Benefits:** Muscle Growth
- **Special Ingredients:** L Glutamine

## Images

![Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian - Image 1](https://m.media-amazon.com/images/I/41Fn6PznuZL.jpg)
![Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian - Image 2](https://m.media-amazon.com/images/I/41LzcpWGeeL.jpg)
![Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian - Image 3](https://m.media-amazon.com/images/I/41NGOV92oaL.jpg)
![Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian - Image 4](https://m.media-amazon.com/images/I/41TAq8BHBHL.jpg)
![Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian - Image 5](https://m.media-amazon.com/images/I/51FzCjwJ2QL.jpg)

## Questions & Answers

**Q: Which importer???**
A: Touchstone retail

**Q: Serious mass vegetarian and non vegetarian,  both are original?**
A: Yes...

**Q: 17 age wale le sakte hai**
A: Yeah

**Q: I have ordered vanilla flavour and u sent chocolate flavour....not fair**
A: Chocolate is far better than vanilla:

## Customer Reviews

### ⭐⭐⭐⭐⭐ Who said it’s fake and bad product?
*by S***H on 4 November 2024*

Some in the review says that it was a fake product or it contained worms, however it’s totally not true. So I got the parcel today within the expected delivery date and checked the authentication. It found that it was 100% authentic product and the quality of the powder is very good. So, it’s up to you which reviews you want to trust, however don’t just blindly believe whatever you see. Because I was the one who was disappointed with buying this from this seller after seeing the low stared reviews, but the product I got was true one and the quality is good tho.

### ⭐⭐⭐⭐ Dr Arjun
*by P***N on 2 December 2025*

its a good product but inside scoop missing i want that scoop

### ⭐⭐⭐⭐⭐ Effective Mass Gainer With Noticeable Results and No Side Effects
*by B***R on 24 December 2025*

I purchased the 3 kg pack of Optimum Nutrition Mass Gainer and finished the entire pack before writing this review. Over the course of using it, I gained around 2.5 kg in weight, which is a good and steady result. The product mixed well, was easy to consume, and I did not experience any side effects during or after use. Results may vary depending on diet and workout routine, but in my case it worked effectively as a support supplement for weight gain.

## Frequently Bought Together

- Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Vanilla) with Vitamins and Minerals, Vegetarian
- ON Optimum Nutrition Creatine Unflavored 317g 93 Serving
- Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-25*