--- product_id: 415488172 title: "(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians" brand: "optimum nutrition" price: "¥12576" currency: JPY in_stock: true reviews_count: 8 category: "Optimum Nutrition" url: https://www.desertcart.jp/products/415488172-on-serious-mass-high-protein-high-calorie-weight-gainer-powder store_origin: JP region: Japan --- # 24 Vitamins & Minerals + Creatine & Glutamine 50g Protein for muscle recovery 1200+ Calories per serving (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians **Brand:** optimum nutrition **Price:** ¥12576 **Availability:** ✅ In Stock ## Summary > 🚀 Bulk Up Boldly with Serious Mass – Because Gains Wait for No One! ## Quick Answers - **What is this?** (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians by optimum nutrition - **How much does it cost?** ¥12576 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/415488172-on-serious-mass-high-protein-high-calorie-weight-gainer-powder) ## 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 - • **Vegetarian & Pure:** Certified vegetarian with rigorous safety seals and certifications (NSF, FSSC 22000, OHSAS 18001) ensuring premium quality and purity. - • **Power-Packed Protein:** 50 grams of high-quality whey protein isolate & concentrate imported from Europe to maximize muscle repair and growth. - • **Massive Calorie Boost:** Fuel your gains with 1200+ calories per 2-scoop serving—perfect for those with fast metabolisms who struggle to bulk up. - • **Nutrient-Rich Formula:** Infused with 24 essential vitamins, minerals, creatine, and L-glutamine to support recovery and overall performance. - • **Versatile & Convenient:** Blend with fruits, nuts, or peanut butter for a personalized calorie-dense shake—ideal post-workout or between meals to crush your weight gain goals. ## Overview Optimum Nutrition Serious Mass is a high-calorie, high-protein vegetarian weight gainer powder designed for adults with fast metabolisms who struggle to gain weight. Each 2-scoop serving delivers over 1200 calories, 50 grams of premium whey protein, and 24 vitamins and minerals, including creatine and L-glutamine, to support muscle growth and recovery. Manufactured in India with imported European ingredients and certified for quality and safety, this chocolate-flavored powder is perfect for post-workout or between meals to accelerate mass gain. ## 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: . - Good product Review: Go for it.. - I recommend for every beginners to buy this protein powder good result and good taste not any digestion issu ## Features - What is Serious Mass: Suitable for Vegetarians, Optimum Nutrition Serious Mass is a 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 - What's in Serious Mass: 1200+ Calories, 50 Grams of 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 - 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. - Note - Product should be tightly sealed after each and every use. Please store in a cool and dry place. Avoid direct sunlight - Our Ingredients like Whey protein Isolate and Whey protein concentrate are imported from Europe. Blending is done at a world class facility in India carrying the highest quality and safety certifications like NSF, FSSC 22000 and OHSAS 18001. - Country of Origin: India (Product designed in the USA) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09QXTRNW6 | | Age Range Description | Adult | | Allergen Information | Milk, Soy | | Best Sellers Rank | #887 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1 in Mass & Weight Gainers | | Brand | Optimum Nutrition | | Colour | Multicolour | | Container Type | Jar | | Country of Origin | India | | Customer Reviews | 3.9 out of 5 stars 2,828 Reviews | | Diet Type | Vegetarian | | Dosage Form | Powder | | Flavor | Chocolate | | Flavour | Chocolate | | Included Components | OPTIMUM NUTRITION | | Item Dimensions | 25 x 15 x 15 Centimeters | | Item Form | Powder | | Item Nype Name | Weight Gain Powder | | Item Weight | 750 Grams | | 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 Contact Information | Manufactured for OPTIMUM NUTRITION, INC. By Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India. | | Manufacturer Part Number | 1115238 | | Material Features | Vegetarian | | Model Name | av2023-OPTIMUM NUTRITION-vitamins minerals high protein high calorie weight gainer with gm creatine-77d22382 | | Model number | 1115238 | | Net Quantity | 1000.0 Grams | | Number of Items | 1 | | Packer Contact Information | Tirupati Wellness Pvt. Ltd. Surajpur, Nahan Road, Paonta Sahib, Dist. Sirmour-173025 (HP), India | | Primary Supplement Type | vitamins | | Product Benefits | Muscle Growth | | Special Ingredients | L-Glutamine | | Total Servings Per Container | 3.0 | | UPC | 748927066715 | | Unit Count | 1000.0 Grams | ## Product Details - **Brand:** Optimum Nutrition - **Diet Type:** Vegetarian - **Flavour:** Chocolate - **Item Form:** Powder - **Item Weight:** 750 Grams - **Item dimensions L x W x H:** 25 x 15 x 15 Centimeters - **Net Quantity:** 1000.0 Grams - **Primary Supplement Type:** vitamins - **Product Benefits:** Muscle Growth - **Special Ingredients:** L-Glutamine ## Images ![(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Image 1](https://m.media-amazon.com/images/I/71uXZbooOeL.jpg) ![(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Image 2](https://m.media-amazon.com/images/I/71uKIXQHn0L.jpg) ![(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Image 3](https://m.media-amazon.com/images/I/71ZmoNlEVkL.jpg) ![(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Image 4](https://m.media-amazon.com/images/I/61MIgOaMXFL.jpg) ![(ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Image 5](https://m.media-amazon.com/images/I/71-VZm83SsL.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## 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 ### ⭐⭐⭐⭐⭐ . *by N***N on 22 July 2026* Good product ### ⭐⭐⭐⭐ Go for it.. *by S***A on 23 January 2026* I recommend for every beginners to buy this protein powder good result and good taste not any digestion issu ### ⭐⭐⭐⭐⭐ Best quality *by Y***N on 24 June 2026* Trusted product and healthy ## Frequently Bought Together - Optimum Nutrition (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 1 kg (Chocolate) with Vitamins and Minerals, Suitable for Vegetarians - Optimum Nutrition (ON) Micronized Creatine Powder - 100 Gram, 33 Serves, 3g of 100% Creatine Monohydrate per serve, Supports Athletic Performance & Power, Unflavored. - OPTIMUM NUTRITION (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 3 kg (Chocolate) with Vitamins and Minerals, Vegetarian --- ## 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.jp/products/415488172-on-serious-mass-high-protein-high-calorie-weight-gainer-powder](https://www.desertcart.jp/products/415488172-on-serious-mass-high-protein-high-calorie-weight-gainer-powder) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-06*