---
product_id: 3624967
title: "Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary)"
brand: "optimum nutrition"
price: "VT73343"
currency: VUV
in_stock: true
reviews_count: 8
category: "Optimum Nutrition"
url: https://www.desertcart.vu/products/3624967-optimum-nutrition-serious-mass-weight-gainer-protein-powder-vitamin-c
store_origin: VU
region: Vanuatu
---

# 250g+ Carbs/serving 50g Protein/serving 1,250 Calories/serving Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary)

**Brand:** optimum nutrition
**Price:** VT73343
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk smarter, not harder with Serious Mass!

## Quick Answers

- **What is this?** Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary) by optimum nutrition
- **How much does it cost?** VT73343 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/3624967-optimum-nutrition-serious-mass-weight-gainer-protein-powder-vitamin-c)

## 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

- • **Carb Overload:** 250+ grams of carbs to supercharge your energy and recovery.
- • **Max Out Your Gains:** 1,250 calories fuel serious muscle growth and weight gain.
- • **Protein Powerhouse:** 50 grams of premium whey protein to rebuild and strengthen.
- • **Immune Boost Formula:** Vitamin C & Zinc support your health while you bulk up.
- • **Customizable Calorie Boost:** Blend with fruits, nuts, or peanut butter for next-level nutrition.

## Overview

Serious Mass by Optimum Nutrition is a high-calorie weight gainer delivering 1,250 calories, 50g of whey protein, and over 250g of carbohydrates per serving. Enhanced with 25 vitamins and minerals plus creatine and glutamine, it supports muscle growth, immune health, and rapid weight gain. Ideal for professionals committed to serious results, it’s designed to be mixed with calorie-dense add-ins for personalized nutrition.

## Description

More calories. More protein. More carbs. SERIOUS MASS by Optimum Nutrition serves up 1,260 calories, 50g of blended protein, and over 250g of carbohydrates per serving to help you maximize your daily caloric intake – the ideal post-workout and between meals shake for sizing up your goals. SERIOUS MASS provides you with more tools to help you pack on pounds, when taken in addition to normal calorie intake and over time with regular resistance training. Calories per gram: Fat 9, Carbohydrate 4, Protein 4.

Review: Gainer - The price is right. Taste is pleasant. Sort of thick with the recommended amount of water. 1 serving has me feeling completely full and I can eat a lot. I found I had to use a mixer for a smooth consistency, I wasn’t able to get it to mix well in the shaker bottle.
Review: It does what it's intended to do. - Alright, when I read the other reviews for this product I invariably end up infuriated. This is a great product that provides 1500 calories at a relatively inexpensive price. This product will help you gain weight significantly faster than most other brands in the same price range. So everyone needs to stop complaining about the taste! Its not made to taste good its made to add some muscle to all you ectomorphs out there that can't gain weight to save their lives. That being said, I have tried every flavor and will provide a brief description of their tastes. Flavors: Chocolate: Second best of all the flavors that are available. It is appealing because its harder to get sick of chocolate then some of the other flavors they offer. Banana: By far the best flavor for this drink. Banana successfully tastes like a pretty good milkshake when mixed with milk but doesn't taste very good when mixed with water. Vanilla: An okay flavor, not as good as banana or chocolate but decent none the less. Strawberry: Avoid strawberry! It tastes horrible and for some unknown reason, it had a different and unappealing consistency compared to the other 3 flavors. So my recommendation is to alternate between banana and chocolate or to buy banana serious mass and add in some Optimum Nutrition protein powder which makes it taste even better. Again, I have gained 15 pounds using this stuff over the course of 2 months and my best friend has gained about 20 pounds in the same amount of time. It really does work if you take it every day. I generally take one heaping scoop in the morning with breakfast and one before I go to sleep.

## Features

- Packaging may vary - New look, with the same trusted Quality!
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- High Calorie Weight Gainer: 1,250 Calories per 2-Scoop Serving
- 50 Grams of Protein per Serving
- Over 250 Grams of Carbohydrates per Serving
- 25 Vitamins & Minerals Plus Creatine & Glutamine
- Using an Electric Blender to Add Fresh or Frozen Fruits, Peanut Butter, Nuts & Other Calorie Dense Foods to Boost Your Weight Gain Potential

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000GIPJ02 |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #15,863 in Health & Household ( See Top 100 in Health & Household ) #12 in Sports Nutrition Weight Gainers #1,495 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Customer Reviews | 4.5 out of 5 stars 6,918 Reviews |
| Diet Type | Vegetarian |
| Flavor | Vanilla |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 192 Ounces |
| Manufacturer | Glanbia Performance Nutrition |
| Material Type Free | Caffeine Free |
| Net Content Volume | 13.88 Liters |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight Gain |
| Protein | 50 Grams |
| Protein Source | Whey |
| Recommended Uses For Product | Calorie Increase, Muscle Growth, Post-Workout, Weight Gain |
| Servings per Container | 16.0 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 16.0 |
| UPC | 748927023824 |
| Unit Count | 192.0 Ounce |
| Vitamins And Minerals | 0.9, 3.0, 30.0, 5.0, 700.0 Milligrams, 100, 100, 28, 63, 80 Percent Daily Value |

## Product Details

- **Brand:** Optimum Nutrition
- **Flavor:** Vanilla
- **Item Weight:** 192 Ounces
- **Material Type Free:** Caffeine Free
- **Servings per Container:** 16.0

## Images

![Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/510JUtwvEyL.jpg)

## Questions & Answers

**Q: How well does this work? I'm a teen with a high matabalizum and I'm looking to build mass and bulk up**
A: I’m nearly 50 years old, but seeing this question I had to comment.  Until I was around 32 or so, I couldn’t gain weight no matter how much I had to eat; or so it seemed.

I remember not caring whether it was fat or ideally muscle, I just didn’t want to be skinny anymore.

Then I hit a point in my life where the metabolism slowed and I couldn’t keep the weight off.  That lasted for nearly 15 years and for some reason my appetite suddenly plummeted and now I’m back looking at weight gainers simply to do nothing more than maintain a healthy weight.

Just try to keep in mind that human physiology typically prohibits putting on large amounts of muscle in a short period of time naturally.  That means that a large portion of quick gains will be fat.  Embrace your high metabolism and shoot for a reasonable goal.

That said, the more calories you intake in a day that exceeds what your body can burn, the quicker you will gain weight.  For the most part, it’s simple math.  Total Intake - Total Burned = Energy Stored Primarily as Fat.  There are about 3500 calories in one pound.  If you were to forge an extra 3500 calories a day, you could theoretically gain 7 pounds a week.  For someone like you, that probably means eating 8,000 calories a day.

Now as far as this product goes, it’s one of the highest calorie per serving gainers I have seen and it’s much quicker to pound a shake than to eat a steak!

Another thing to keep in mind is that supplements that are fortified with vitamins and minerals, have the potential to far exceed recommended safe values for human consumption.  I ran into this when I was your age.  I was drinking over a gallon of milk a day, milk is fortified with vitamin D and that build up led to some freaky painful headaches in me personally.

Too much calcium can also upset your bodies homeostasis and lead to surprising problems.

Being young, your body can handle a lot!  Just wanted you to be aware of the things I wish I knew when I was your age.

If I were young again I would focus on speed, agility and good clean ripped muscle!  Shredded muscle always looks bigger than fat muscle.

Cheers!

**Q: banana**
A: I’m adding my two cents.

Chocolate peanut butter is the truth. Banana was good at first, and then it wasn’t.

**Q: Does it work without work out ?because im so busy all day**
A: First off, I am so sorry that everyone that responded to this question this far hasn't answered your question. I'm seeing you ask if this helps you put on weight without working out. I've seen 3 or 4 people put "no excuses, no short cuts," "no motivation, no nothing" and other meat head answers. I apologize about them =)

Getting to your question. Yes, it does help you gain weight even if you're not working out. I understand you're busy...who's not? Working out and drinking this is without question the best way to gain weight. But, for the last 2 weeks I've been drinking a scoop in the morning, and a scoop at night before bed. And I've gained 3 pounds! Doesn't sound like a lot, but if I don't get 6 eggs every morning, I'll loose 2 pounds. If I don't eat 400 calories everyday, I'll loose 2 pounds. I have such a low fat to muscle ratio that if I type it in, people won't believe me, so ill save it for the haters on YouTube (jk) 😅 

But yeah, this stuff works. Might jist be a pounds a week, but if you're like me, that's great success. This does work without working out as long as you drink it consistently. Best of luck to you my friend.

**Q: will a high intensity sport like basketball plus weight training, 5 days a week  lessen the effectiveness of this product??**
A: The guy who says this causes cancer is lying or is just ignirant. Some other supplements may but even at that mant studies don't say which ones. Powder prorein supplements do not. As do many men, i don't use this product for muscle gain. I use max muscle for that. I use this for belly fat gaining.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gainer
*by M***X on December 23, 2025*

The price is right. Taste is pleasant. Sort of thick with the recommended amount of water. 1 serving has me feeling completely full and I can eat a lot. I found I had to use a mixer for a smooth consistency, I wasn’t able to get it to mix well in the shaker bottle.

### ⭐⭐⭐⭐⭐ It does what it's intended to do.
*by J***N on December 23, 2011*

Alright, when I read the other reviews for this product I invariably end up infuriated. This is a great product that provides 1500 calories at a relatively inexpensive price. This product will help you gain weight significantly faster than most other brands in the same price range. So everyone needs to stop complaining about the taste! Its not made to taste good its made to add some muscle to all you ectomorphs out there that can't gain weight to save their lives. That being said, I have tried every flavor and will provide a brief description of their tastes. Flavors: Chocolate: Second best of all the flavors that are available. It is appealing because its harder to get sick of chocolate then some of the other flavors they offer. Banana: By far the best flavor for this drink. Banana successfully tastes like a pretty good milkshake when mixed with milk but doesn't taste very good when mixed with water. Vanilla: An okay flavor, not as good as banana or chocolate but decent none the less. Strawberry: Avoid strawberry! It tastes horrible and for some unknown reason, it had a different and unappealing consistency compared to the other 3 flavors. So my recommendation is to alternate between banana and chocolate or to buy banana serious mass and add in some Optimum Nutrition protein powder which makes it taste even better. Again, I have gained 15 pounds using this stuff over the course of 2 months and my best friend has gained about 20 pounds in the same amount of time. It really does work if you take it every day. I generally take one heaping scoop in the morning with breakfast and one before I go to sleep.

### ⭐⭐⭐⭐⭐ Best Protein Powder
*by P***. on August 5, 2025*

excellebt quality protein powder. I been purchasing this powder for the last so many years and it is same great quality. Good amount of protein and it helps build good lean muscle. it is easy to mix, easy to digest, great tasting, good amount of calories. Prices are a bit high but well worth it

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder with Creatine
- Nutricost Creatine Monohydrate Micronized Powder 500G, 5000mg Per Serv (5g) - 100 Servings, 17.9 Oz
- VOLTRX Premium Electric Protein Shaker Bottle, Made with Tritan - BPA Free - 24 oz Vortex Portable Mixer Cup/USB Rechargeable Shaker Cups for Protein Shakes

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-26*