---
product_id: 690929406
title: "OPTIMUM NUTRITION (ON) Serious Mass Gainer powder (Veg) - Pack of 5 kg (Chocolate), Vitamins & Minerals, High Protein High Calorie Weight Gainer with 3gm Creatine"
brand: "optimum nutrition"
price: "฿17166"
currency: THB
in_stock: true
reviews_count: 5
category: "Optimum Nutrition"
url: https://www.desertcart.co.th/products/690929406-optimum-nutrition-on-serious-mass-gainer-powder-veg-pack-5
store_origin: TH
region: Thailand
---

# 3g Creatine for Power Boost 50g High-Quality Protein 1200+ Calories per serving OPTIMUM NUTRITION (ON) Serious Mass Gainer powder (Veg) - Pack of 5 kg (Chocolate), Vitamins & Minerals, High Protein High Calorie Weight Gainer with 3gm Creatine

**Brand:** optimum nutrition
**Price:** ฿17166
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk Up or Miss Out: Serious Mass for Serious Gains!

## Quick Answers

- **What is this?** OPTIMUM NUTRITION (ON) Serious Mass Gainer powder (Veg) - Pack of 5 kg (Chocolate), Vitamins & Minerals, High Protein High Calorie Weight Gainer with 3gm Creatine by optimum nutrition
- **How much does it cost?** ฿17166 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/690929406-optimum-nutrition-on-serious-mass-gainer-powder-veg-pack-5)

## 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 it fast.
- • **Complete Nutrient Spectrum:** 24 essential vitamins & minerals plus L-Glutamine to support overall health and muscle endurance.
- • **Protein-Packed Muscle Repair:** 50 grams of premium protein to accelerate muscle recovery and growth post-workout.
- • **Creatine-Enhanced Performance:** 3 grams of creatine included to amplify strength and power output during training.
- • **Sealed for Purity & Freshness:** Induction vented liner and shrink wrap seal ensure every scoop is fresh and contamination-free.

## Overview

Optimum Nutrition Serious Mass is a vegetarian-friendly, high-calorie weight gainer delivering over 1200 calories, 50g protein, and 3g creatine per serving. Designed for active metabolisms and athletes, it supports muscle growth and recovery with a blend of 24 vitamins, minerals, and L-Glutamine. Packaged with purity seals, it’s the trusted formula to help you power through your mass-building journey.

## 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: I used this when I started going to the gym and it worked really well for me that’s why I ordered it for my friends too. On is one of the best and most trusted brands when it comes to protien abd weight gainers. This time I ordered two packs for my roommates- one doesn’t see results probably he drinks and smoke more than he trains 😂 and the other hits the gym only once every 4-5 days. So yeah it’s definot the product’s fault. So just make sure you’re serious, ambitious and consistent with workouts.
Review: Good 👍 but 5 kg liya or 1 sekar bhi nhi dete ye galt he but prodak is good 👍 very good test

## Features

- What is Serious Mass: Suitable for Vegetarians, 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 high quality Protein and over 250 Grams of Carbohydrates per Serving with 24 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.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B3DX8TKW |
| ASIN  | B0B3DX8TKW |
| Additives | L-Glutamine |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #186,852 in Health ( See Top 100 in Health ) #5,154 in Multiple Vitamin-Mineral Combination Supplements |
| Brand | Optimum Nutrition |
| Customer Reviews | 3.9 3.9 out of 5 stars (306) |
| Customer reviews | 3.9 3.9 out of 5 stars (306) |
| Date First Available | 3 September 2024 |
| Format | Powder |
| Item model number  | 1110154 |
| Manufacturer  | Optimum Nutrition |
| Product Dimensions  | 18 x 18 x 19 cm; 5 kg |
| Serving Recommendation | 2 Scoops (334g) |
| Units | 5000.0 Grams |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet type:** Vegetarian
- **Flavour:** Chocolate
- **Item dimensions L x W x H:** 18 x 18 x 19 centimeters
- **Item form:** Powder
- **Item weight:** 5 Kilograms
- **Primary supplement type:** Maltodextrin
- **Product benefits:** Muscle Growth
- **Special ingredients:** L-Glutamine
- **Unit count:** 5000.0 Grams

## Images

![OPTIMUM NUTRITION (ON) Serious Mass Gainer powder (Veg) - Pack of 5 kg (Chocolate), Vitamins & Minerals, High Protein High Calorie Weight Gainer with 3gm Creatine - Image 1](https://m.media-amazon.com/images/I/61GzQz-w74L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***A on 29 July 2025*

I used this when I started going to the gym and it worked really well for me that’s why I ordered it for my friends too. On is one of the best and most trusted brands when it comes to protien abd weight gainers. This time I ordered two packs for my roommates- one doesn’t see results probably he drinks and smoke more than he trains 😂 and the other hits the gym only once every 4-5 days. So yeah it’s definot the product’s fault. So just make sure you’re serious, ambitious and consistent with workouts.

### ⭐⭐⭐⭐ Review
*by S***E on 15 October 2025*

Good 👍 but 5 kg liya or 1 sekar bhi nhi dete ye galt he but prodak is good 👍 very good test

### ⭐⭐⭐⭐ Review
*by M***N on 7 June 2025*

Worth product

## Frequently Bought Together

- OPTIMUM NUTRITION (ON) Serious Mass Gainer powder (Veg) - Pack of 5 kg (Chocolate), Vitamins & Minerals, High Protein High Calorie Weight Gainer with 3gm Creatine
- Optimum Nutrition BCAA, 5g BCAAs in 2:1:1 Ratio, 30 servings, For Muscle Recovery & Endurance, Intra workout, Informed Choice certified (250gm, Green Apple)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/690929406-optimum-nutrition-on-serious-mass-gainer-powder-veg-pack-5](https://www.desertcart.co.th/products/690929406-optimum-nutrition-on-serious-mass-gainer-powder-veg-pack-5)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*