Want to gain mass fast with reliable, calorie-dense options that support recovery and muscle growth. Top picks include Optimum Nutrition Serious Mass (Banana and Chocolate) and Dymatize Super Mass Gainer (Fruity Pebbles or Gourmet Vanilla) offering 1,200–1,300 kcal servings with blended proteins, added vitamins, creatine, and BCAAs.
Supragenix CB‑1 pills can help boost appetite for those struggling to eat enough. Keep digestion, ingredient transparency, and micronutrients in mind as you choose the best mass gainer for your goals.
| Optimum Nutrition Serious Mass Weight Gainer – Banana |
| Best Overall Mass Gainer | Calories per serving: 1,250 kcal per 2-scoop serving | Protein per serving: 50 g protein per 2-scoop serving | Carbohydrates per serving: Over 250 g per 2-scoop serving | VIEW LATEST PRICE | Read Our Analysis |
| Dymatize Super Mass Gainer Protein Powder (Fruity Pebbles) |
| Highest-Calorie Powerhouse | Calories per serving: 1,290 kcal per serving | Protein per serving: 52 g protein per serving | Carbohydrates per serving: 248 g per serving | VIEW LATEST PRICE | Read Our Analysis |
| Supragenix CB-1 Weight Gainer Pills (90 Count) |
| Appetite-Boosting Supplement | Calories per serving: Not listed (oral capsule product; promotes increased appetite/metabolism slowing rather than calories) | Protein per serving: Not applicable (capsules; no protein per serving stated) | Carbohydrates per serving: Not applicable / not listed (capsule formula) | VIEW LATEST PRICE | Read Our Analysis |
| Optimum Nutrition Serious Mass Weight Gainer — Chocolate |
| Versatile Calorie Builder | Calories per serving: >1,200 kcal per 2-scoop serving | Protein per serving: 50 g blended protein per 2-scoop serving | Carbohydrates per serving: >250 g per 2-scoop serving | VIEW LATEST PRICE | Read Our Analysis |
| Dymatize Super Mass Gainer Protein Powder (Gourmet Vanilla) |
| Recovery-Focused Mass Gainer | Calories per serving: 1,280 kcal per serving | Protein per serving: 52 g protein per serving | Carbohydrates per serving: 245 g per serving | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Optimum Nutrition Serious Mass Weight Gainer – Banana
In case you need a high-calorie, high‑protein option to quickly add mass, Optimum Nutrition Serious Mass — Banana delivers 1,250 calories and 50 g of protein per 2‑scoop serving, making it a solid pick for hard gainers or anyone needing large, convenient calorie improvements. You’ll get over 250 g carbs, creatine, glutamine, and 25 vitamins and minerals including vitamin C and zinc for immune support. Use an electric blender, toss in fruits or peanut butter to increase calories, and expect a 12‑pound tub (packaging could differ). It’s designed for mass gainers who want maximum, straightforward caloric intake.
- Calories per serving:1,250 kcal per 2-scoop serving
- Protein per serving:50 g protein per 2-scoop serving
- Carbohydrates per serving:Over 250 g per 2-scoop serving
- Includes additional muscle-supporting ingredients:Creatine and glutamine included
- Vitamins & minerals:25 vitamins and minerals (includes vitamin C, zinc)
- Intended purpose / goal:Weight/mass gainer for fast calorie/protein intake
- Additional Feature:Creatine included
- Additional Feature:25 vitamins & minerals
- Additional Feature:Large 12 lb tub
Dymatize Super Mass Gainer Protein Powder (Fruity Pebbles)
Should you’re chasing rapid mass gains and need a high-calorie, muscle-focused option, Dymatize Super Mass Gainer (Fruity Pebbles) delivers—with 1,290 calories, 52 g of protein, and 248 g of carbs per serving to fuel hard gainers and intense training phases. You get a fast- and slow-digesting protein blend plus 10.7 g BCAAs and 5.1 g leucine to activate muscle protein synthesis. It also supplies 14 vitamins and minerals to support recovery. The 6 lb tub yields eight servings, mixes easily, and tastes delicious, making it a convenient, calorie-dense choice whenever you need to bulk efficiently.
- Calories per serving:1,290 kcal per serving
- Protein per serving:52 g protein per serving
- Carbohydrates per serving:248 g per serving
- Includes additional muscle-supporting ingredients:BCAAs (10.7 g) and leucine (5.1 g) included
- Vitamins & minerals:14 vitamins and minerals
- Intended purpose / goal:Mass gainer to increase mass, support recovery and muscle synthesis
- Additional Feature:10.7 g BCAAs
- Additional Feature:5.1 g leucine
- Additional Feature:Fast/slow protein blend
Supragenix CB-1 Weight Gainer Pills (90 Count)
In case you’re aiming to improve appetite and add real, lasting mass, Supragenix CB-1 is customized for both men and women who want targeted gains—curvier hips, thighs, chest, and glutes for women; bigger arms, shoulders, and legs for men—backed through an 8-week clinical test showing greater weight increases than diet alone. You’ll use natural herbs, vitamins, and minerals formulated in the USA with globally sourced ingredients and third-party batch testing for purity and safety. CB-1 works through increasing appetite and slowing metabolism; consistent use produced the best results. It’s free of common allergens except soy lecithin and ragweed-family herbs.
- Calories per serving:Not listed (oral capsule product; promotes increased appetite/metabolism slowing rather than calories)
- Protein per serving:Not applicable (capsules; no protein per serving stated)
- Carbohydrates per serving:Not applicable / not listed (capsule formula)
- Includes additional muscle-supporting ingredients:Herbal vitamins/minerals to boost appetite/metabolism (clinically tested formula)
- Vitamins & minerals:Vitamins and minerals included (natural herb/vitamin blend; 3rd-party tested)
- Intended purpose / goal:Weight gainer/appetite booster to support lasting body mass gain (men & women)
- Additional Feature:Clinically tested 8-week
- Additional Feature:Appetite-stimulating capsules
- Additional Feature:Third-party batch tested
Optimum Nutrition Serious Mass Weight Gainer — Chocolate
In the event you’re trying to add serious calories and mass quickly, Optimum Nutrition’s Serious Mass — Chocolate delivers: a two-scoop serving packs over 1,200 kcal, about 50 g of blended protein, and more than 250 g of carbs, plus creatine and 20+ vitamins and minerals to support recovery and immune health. You’ll mix it in a blender and can increase calories further with fruit, nut butter, or whole milk. It targets rapid weight and mass gain, offers immune support via vitamin C and zinc, and suits anyone needing concentrated, convenient calories post-workout or between meals for steady progress.
- Calories per serving:>1,200 kcal per 2-scoop serving
- Protein per serving:50 g blended protein per 2-scoop serving
- Carbohydrates per serving:>250 g per 2-scoop serving
- Includes additional muscle-supporting ingredients:Creatine included
- Vitamins & minerals:Over 20 vitamins and minerals (includes vitamin C, zinc)
- Intended purpose / goal:Weight/mass gainer to facilitate weight and mass gain
- Additional Feature:Creatine included
- Additional Feature:Over 20 vitamins
- Additional Feature:Blender-friendly mix
Dymatize Super Mass Gainer Protein Powder (Gourmet Vanilla)
In case you need a concentrated calorie and protein improvement to gain mass quickly, Dymatize Super Mass Gainer (Gourmet Vanilla) delivers—packing 1,280 calories and 52 g of a fast- and slow-digesting protein blend per serving to fuel workouts and support sustained recovery. You get whey, whey isolate, and casein for immediate and extended muscle fuel, 245 g carbs, 10.7 g BCAAs, and 1 g creatine to amplify strength, power, and endurance. Fourteen vitamins and minerals support health while BCAAs and glutamine aid recovery. Mix into shakes, oats, or baked goods to meet high energy needs and prevent catabolism.
- Calories per serving:1,280 kcal per serving
- Protein per serving:52 g protein per serving
- Carbohydrates per serving:245 g per serving
- Includes additional muscle-supporting ingredients:Creatine (1 g), BCAAs and glutamine noted
- Vitamins & minerals:14 essential vitamins and minerals (includes vitamin C, E, calcium)
- Intended purpose / goal:Mass gainer to gain muscle mass and meet high energy needs
- Additional Feature:1 g creatine per serving
- Additional Feature:10.7 g BCAAs
- Additional Feature:Multi-protein delivery (whey/casein)
Factors to Consider When Choosing Weight Gainers
At the time of picking a weight gainer, you’ll want to check calorie density to match your goals and protein quality to make certain muscle support. Look at carbohydrate type and micronutrient profile for sustained energy and general nutrition. Also consider digestive tolerance so the formula works with your stomach and training routine.
Calorie Density
Because calorie density tells you how many calories come in each serving, it’s the quickest way to judge whether a mass gainer will help you hit the extra 500–1,000 kcal/day you could need without forcing down huge volumes of food. Look for products that deliver ~1,200–1,300 kcal per recommended serving unless you need big surpluses, but bear in mind higher density can push you into excessive fat gain when total intake overshoots your target. Compare calories per 100 g or per 250–500 mL to normalize differing scoop sizes and dilution instructions. Prioritize dense formulas in case you have low appetite or limited stomach capacity, but check how those calories are distributed across carbs, fats, and protein so the extra energy supports muscle-building goals rather than being mostly simple sugars.
Protein Quality
Although calories build mass, protein quality determines whether that mass is muscle or mostly fat—so pick weight gainers that combine fast (whey) and slow (casein or equivalents) proteins to supply both immediate and sustained amino acids for recovery and growth. Check grams of protein per serving and plan total daily intake of 0.6–1.0 g per pound of bodyweight from all sources to support muscle gain during a surplus. Prioritize formulas with high leucine or BCAA content—aim for roughly 2.5–3 g leucine per serving—to optimally trigger muscle protein synthesis. Review protein quality scores like PDCAAS or DIAAS whenever available, and calculate the protein-to-calorie ratio to avoid excessive empty calories while meeting your protein needs.
Carbohydrate Type
Carbohydrates in weight gainers determine how quickly you get calories and how your body handles them, so pick blends that match your goals: fast-digesting carbs (sugars, maltodextrin) give rapid calories and quick glycogen refilling but spike glucose and insulin, while complex carbs (oats, long-chain starches) release energy more slowly and improve satiety and digestive tolerance; also look for some fiber and whole-food carbs to boost nutrient density, and choose a carb mix that fits your timing needs—simple carbs post-workout, slower carbs between meals or at night. Decide your carb ratio based on how aggressive your surplus needs to be: many mass gainers pack 200–300+ g per serving. Favor blends with some fiber and whole-food sources to reduce GI issues and add micronutrients, and match carb speed to workout timing for peak recovery and steady gains.
Micronutrient Profile
Now that you’ve matched carbohydrate types to timing and tolerance, also check what vitamins and minerals come with those extra calories. You want a weight gainer that supplies a broad range of micronutrients—aim for formulas listing 14–25+ vitamins and minerals—to support recovery, immune function, and metabolism during bulking. Make sure immune-supporting nutrients like vitamin C and zinc are included, and look for electrolytes (sodium, potassium, magnesium) plus calcium for hydration, muscle and bone support whenever you’re consuming concentrated meals or shakes. Review amounts versus daily values to avoid excessive fat‑soluble vitamins (A, D, E, K) or minerals that can accumulate with frequent high servings. In case you’re vegan, iron‑deficient, or allergen‑sensitive, verify nutrient forms and ingredient sources.
Digestive Tolerance
Because your stomach will often determine whether a weight gainer adheres to your plan, prioritize digestive tolerance whenever you compare products. Check total calories and serving size: very high servings (>1,000 kcal) can overload digestion and cause bloating or nausea in case you don’t ramp up intake gradually. Inspect carbohydrate type and amount—large doses of simple carbs or >200 g per serving can ferment, causing gas, cramping, or diarrhea in sensitive people. Scrutinize protein sources and quantities: 40–50+ g per serving or concentrated dairy proteins may trigger indigestion or lactose symptoms. Review added ingredients like creatine, sugar alcohols, and high-dose fiber, which can pull water into the gut or produce gas and loose stools. Observe allergens and known intolerances to avoid GI issues.
Ingredient Transparency
Digestive comfort matters, but you also need to know exactly what’s inside a weight gainer to make an informed choice. Check the full nutrition panel for calories, protein, carbs, fats, fiber, and serving size so you know what each scoop delivers. Read the ingredient list in descending order and observe protein sources (whey concentrate/isolate, casein, plant blends), carbohydrate types (maltodextrin, dextrose, oats), and added fats. Verify amounts of added ingredients like creatine, glutamine, BCAAs, sugars, artificial sweeteners, colors, and fillers to assess efficacy and side‑effect risk. Confirm micronutrient quantities with %Daily Value instead of vague “contains vitamins” claims. Prefer clear allergen labeling, third‑party testing or certification, and disclosed manufacturing origin for safety and accuracy.