--- product_id: 632075850 title: "Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)" brand: "optimum nutrition" price: "€ 298.26" currency: EUR in_stock: true category: "Optimum Nutrition" url: https://www.desertcart.gr/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle store_origin: GR region: Greece --- # 22 vitamins & minerals 50g protein blend 1,250 calories/serving Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) **Brand:** optimum nutrition **Price:** € 298.26 **Availability:** ✅ In Stock ## Summary > 💥 Bulk smarter, recover faster, and own your transformation! ## Quick Answers - **What is this?** Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) by optimum nutrition - **How much does it cost?** € 298.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle) ## 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 - • **Calorie Powerhouse:** Fuel your gains with a massive 1,250 calories per 2-scoop serving—perfect for serious bulkers. - • **Muscle Recovery Boost:** 50 grams of premium blended protein to accelerate muscle repair and growth post-workout. - • **Trusted Bulk Solution:** A top-ranked, caffeine-free formula favored by thousands for rapid, effective weight gain. - • **Customizable Nutrition:** Blend with fruits, nuts, or peanut butter to tailor your shake and maximize calorie intake effortlessly. - • **Immune Defense Formula:** Packed with 22 essential vitamins and minerals including Vitamin C, D, and Zinc to keep you strong. ## Overview Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,250 calories and 50 grams of protein per serving, enhanced with 22 vitamins and minerals for immune support. Designed for adults seeking rapid muscle gain, this vegetarian-friendly, caffeine-free powder offers versatile blending options to customize your nutrition and accelerate your bulk with trusted quality. ## Description Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized 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 pack on the pounds and help you develop the physique you’ve always wanted. ## Features - High calorie weight gainer: more than 1,200 calories per 2-scoop serving - 50 grams of blended protein per serving - Over 250 of carbohydrates per serving - 22 vitamins and minerals including Vitamin C, Vitamin D, and Zinc to provide immune support - More versatility: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00OV0VYHI | | ASIN | B00OV0VYHI | | Age Range Description | Adult | | Best Sellers Rank | #9,193 in Health ( See Top 100 in Health ) #445 in Sports Supplements | | Brand Name | Optimum Nutrition | | Customer Reviews | 4.5 4.5 out of 5 stars (7,321) | | Customer reviews | 4.5 4.5 out of 5 stars (7,321) | | Diet Type | Vegetarian | | Flavor | Chocolate Peanut Butter | | Global Trade Identification Number | 00748927052572 | | Is Discontinued By Manufacturer | No | | Item Dimensions | 29.2 x 14 x 40.6 centimeters | | Item Weight | 12 Pounds | | Item model number | 1056371 | | Manufacturer | Glanbia Performance Nutrition | | Manufacturer | Glanbia Performance Nutrition | | Manufacturer Part Number | 1056371 | | Material Type Free | Caffeine Free | | Model Number | 1056371 | | Number of Items | 1 | | Product Dimensions | 29.21 x 13.97 x 40.64 cm; 5.44 kg | | Protein Source | Whey | | UPC | 748927052572 | | Unit Count | 5443.1 Grams | ## Product Details - **Brand:** Optimum Nutrition - **Diet type:** Vegetarian - **Flavour:** Chocolate Peanut Butter - **Item weight:** 12 Pounds - **Material type free:** Caffeine Free ## Images ![Optimum Nutrition Serious Mass, Weight Gainer Protein Powder for Muscle Gain, Added Immune Support, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/511yjH27xML.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## Frequently Bought Together - Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) - Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 120 Servings, 600 Grams (Packaging May Vary) --- ## 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.gr/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle](https://www.desertcart.gr/products/632075850-optimum-nutrition-serious-mass-weight-gainer-protein-powder-for-muscle) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-11-14*