10 Best Supplements For Massive Muscle Gain in 2026

Over 1,200 calories and 50 grams of protein per two-scoop serving make this a serious tool for anyone looking to pack on size. That calorie density means you can get a meaningful surplus without drinking shake after shake, and the added creatine, glutamine, and BCAAs support recovery and strength work right alongside the mass gain. It’s a straightforward, no-nonsense option for lifters who want a calorie-dense foundation they can build on.

The 250 grams of carbs per serving is a lot, great if you’re training hard and need the fuel, but less ideal if you prefer a leaner gainer or watch your carb intake closely. Compared to NAKED Mass, which is marketed as natural and free of artificial ingredients, Serious Mass includes added vitamins and minerals for overall nutritional support. It’s a practical choice for someone who wants calories, protein, and micronutrients in one scoop.

At 1,250 calories and 50 grams of protein per serving, this is a serious calorie bomb for anyone who struggles to pack on size. The blend of fast-release grass-fed whey and slow-digesting micellar casein is designed to keep protein synthesis up, while the organic tapioca maltodextrin provides clean complex carbs without wheat or gluten. It is NSF Certified, so you know what is on the label is what is in the tub. This is a straightforward mass gainer with only three ingredients, making it a clean option for those who want to avoid artificial additives.

The only three ingredients. Naked Whey, Naked Casein, and organic tapioca maltodextrin, mean you get 1,250 calories per serving with zero artificial sweeteners, flavors, or colors. That purity comes at a cost: it’s unflavored, so you’ll need to blend it with milk, fruit, or a splash of something to make it palatable. For anyone focused on avoiding artificial additives and wanting full control over what goes into their shake, Naked Mass delivers exactly that without the extra junk.

With 1,100 calories and 56 grams of protein per serving, this mass gainer is designed for anyone who needs extra calories and protein to build size. The ingredient list includes barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed, and sunflower oil, which are recognizable whole foods. This makes it a different option compared to mass gainers that rely on simpler blends. It suits lifters who want a denser shake with ingredients you can identify.

The 192 grams of carbohydrates per serving is a lot, even for a mass gainer, so if you’re sensitive to high carbs or prefer a leaner profile, this might feel like more than you need. The blend includes whole-food ingredients like barley, sweet potato, and rolled oats, which some buyers may prefer over simpler carb sources. Just keep in mind that each serving delivers 1,100 calories and 56 grams of protein to support active lifestyles.

With 650 calories and 32 grams of protein per serving, this gainer packs a solid calorie punch without forcing you to drink a gallon of shake. It’s designed for anyone who wants to add mass without spending a fortune on supplements. The blend of fast and slow releasing proteins keeps amino acids flowing, which is helpful for recovery after heavy lifting. The added 20 vitamins and minerals are a nice bonus, too, since intense training can drain your micronutrient stores.

A single serving packs 1260 calories, 50 grams of protein, and 250 grams of carbohydrates sourced from oats, yams, and sweet potatoes. That calorie density supports putting on size when you need a surplus. The carb sources are listed as natural ingredients, which may appeal to those who prefer whole-food-based nutrition. It suits lifters who struggle to eat enough or need a heavy post-workout shake to support recovery after intense training.

The trade-off comes down to portion size and carb load. Four scoops per serving means you are committing to a big shake, and 250 grams of carbohydrates per serving can feel like a lot if your metabolism is not already running hot. Compare that to other high-calorie gainers on the market, which may use different carb sources. Forzagen lists oats, yams, and sweet potatoes as its carb sources, which some users may prefer over other common ingredients. If you want a high-calorie gainer with those carb sources and do not mind a hefty shake, this product fits that need.

With 53 grams of protein and just 6 grams of fat per serving, this mass gainer leans hard into clean muscle building without the heavy grease. That low-fat profile matters if you want to add size without packing on extra fluff, especially when you are already watching your overall macros. The blend uses whey concentrate and micellar casein, providing a dual-source protein that supports nitrogen retention and muscle recovery as stated on the label. For someone who wants a straightforward, high-protein weight gainer that skips the unnecessary junk, this one checks the important boxes without overcomplicating things.

The trade-off here is the carb count: 99 grams per serving is substantial. If you are not hammering out intense training sessions or you are trying to keep carbohydrate intake moderate, that number might feel like a lot. Compare that to something like Transparent Labs Mass Gainer, which offers 53 grams of protein and 110 grams of carbs per serving, and you will see that NutraBio sits at a slightly lower carb level. That said, the brand backs its formula with third-party testing and a fully disclosed label, so you know exactly what you are putting in your body. It is a solid fit for hardgainers and athletes who need dense calories to fuel serious workouts.

Three grams of creatine monohydrate are already blended into every scoop, so you get a proven strength and recovery booster without needing an extra tub on your shelf. That 770-calorie serving also packs 53 grams of grass-fed whey and over 110 grams of slow-digesting carbs from oat flour and sweet potato powder. This makes it a practical option if you struggle to eat enough to maintain a caloric surplus. This mass gainer is designed for the lifter who wants a clean formula that supports muscle protein synthesis and recovery in one shake.

The trade-off is that 110 grams of carbs per serving can feel like a lot if your stomach isn’t used to dense shakes. With only 15 servings per tub, you’ll reorder more often than with a bigger bag like Mutant Mass. If you prefer a leaner approach or want to control your carb intake separately, a lower-calorie option like Rival Nutrition Clean Gainer might fit better.

With 690 calories and a 2:1 carb-to-protein ratio, BSN True-Mass delivers a steady stream of energy and muscle-building fuel. The 50 grams of protein come from a blend of whey protein concentrate, calcium caseinate, milk protein isolate, whey protein isolate, micellar casein, hydrolyzed whey protein, and egg whites, providing both fast and slow-digesting proteins. It’s a practical choice for anyone needing extra calories to support mass gain during intense training.

At 690 calories per serving, this weight gainer packs enough energy to support extreme training programs, making it a practical option for hardgainers who struggle to eat enough. The 2:1 ratio of carbs to protein delivers a high-quality mix to fuel mass-gaining goals, while the blend of whey, casein, and egg-white proteins provides 50 grams of protein from ultra-premium sources. MCT fats round out the nutritional value, and BSN’s flavor technology gives each shake a milkshake-like taste that helps you stick with your calorie targets.

With 550 calories per serving from a blend of quinoa, blueberry, ginger root, and oat fiber, this lean gainer targets steady muscle growth without the heavy sugar load. The 30 grams of protein come from whey, milk, and micellar casein, giving you both fast and slow-digesting amino acids to support recovery. Sweetened with stevia leaf extract and naturally flavored, it avoids artificial colors and fillers. The multi-source carb blend provides 97g total carbs per serving, with only 2g added sugars, making it a practical choice for those focused on clean ingredients.

The trade-off here is that 97 grams of carbs per serving can feel substantial if you are watching your carb intake or aiming for slower weight gain. Compared to Optimum Nutrition Serious Mass, which comes in a 6 lb container, this one offers a different calorie profile. If you want a gainer that mixes easily with cold water, milk, or juice, this fits the bill. Just be ready for the carb count if your metabolism or goals are on the lower end.

Fifty grams of protein per serving is the headline here, and for anyone chasing serious muscle gain, that number means your post-workout shake doubles as a solid chunk of your daily protein target without needing to blend multiple scoops. Nutricost also packs in creatine monohydrate and L-glutamine, two ingredients commonly used to support strength output and recovery, so you get more than just calories in the bag. This makes it a smart pick for lifters who want a straightforward, no-nonsense mass gainer that keeps the ingredient list lean and the protein count high, especially if you are watching your budget.

The trade-off is serving count: at nine servings per 6.9-pound tub, you will go through this container faster than some options on the shelf. If you are okay with restocking more often and do not mind a bigger tub, this is a practical way to fuel consistent gains without overspending.