10 Best Gym Supplements For Weight Gain in 2026

A single serving packs 1,280 calories and 52 grams of protein, which makes this the kind of shake that actually moves the needle when you are struggling to eat enough. The blend of whey and casein means you get a quick hit of amino acids for recovery plus a slower release that keeps feeding your muscles for hours. That sustained delivery, combined with the added creatine and a full lineup of vitamins, makes it a practical all-in-one for anyone who wants to bulk up without juggling multiple powders or meals.

The trade-off is that 245 grams of carbs per serving is a lot, especially if your stomach is not used to that kind of density. This one works best when you plan your day around it, maybe as a post-workout shake or a meal replacement, rather than trying to sip it casually. If you are okay with that commitment, the formula covers the essentials in a straightforward way.

Each two-scoop serving delivers over 1,200 calories, which makes it a practical option for anyone trying to increase daily energy intake when regular meals fall short. The 50 grams of blended protein supports muscle repair and lean mass development after intense training, while the more than 250 grams of carbohydrates replenish glycogen stores and fuel sustained energy throughout the day. Reviewers find that the formula blends easily with milk, peanut butter, or fruit to customize both calories and flavor. Added vitamins and minerals, including Vitamin C and Zinc, contribute to overall nutritional balance and immune function, so this shake works as more than just a calorie source.

Each serving is a dense, heavy shake. If you find it hard to drink large volumes, you might need to split the scoop or blend with less liquid. The carb content is high, so it fits best during intense training phases rather than rest days or low-carb plans.

With 60 grams of protein per serving, this mass gainer packs more protein into each shake than many competitors. It’s a strong choice if your main goal is building muscle while adding weight. The 650-calorie count lands in a middle ground, enough to support gains without the extreme calorie load of some bulkier options, and the 32 vitamins and minerals help cover the extra nutrient needs that come with heavy training. It mixes easily with just a spoon or shaker, so you can throw a shake together fast after a workout or between meals without needing a blender.

The trade-off here is the carb content: 85 grams per serving gives you solid energy replenishment, but if you’re watching your carb intake or prefer a leaner gainer, this might feel heavy. Compared to the Dymatize Super Mass Gainer, which delivers 1280 calories and 245g carbs per serving, the Gold Standard Pro Gainer is a more moderate option. It won’t spike your calories as dramatically. It’s best for someone who wants high protein without the massive carb load of extreme mass gainers, but if you need the highest calorie count possible, the Dymatize or Optimum Nutrition Serious Mass Gainer would be a better fit.

At 690 calories and a 2:1 carb-to-protein ratio, BSN True-Mass Weight Gainer hits a sweet spot for anyone who wants serious mass without feeling like they’re drinking a dessert. The 50 grams of protein come from whey concentrate, calcium caseinate, milk protein isolate, whey isolate, micellar casein, hydrolyzed whey, and egg whites. That means your body gets a steady stream of amino acids over time. That blend makes it especially good for post-workout recovery and lean muscle growth, not just a quick calorie dump. If you’re the kind of person who wants steady, manageable gains without the sugar spike of a higher-carb option, this one fits nicely into a sustainable routine.

At 690 calories per serving, this gives your body the extra fuel it needs to build mass during an extreme training program. You’re not left feeling underfed after a tough session. The 2:1 ratio of carbs to protein delivers a high-quality mix that supports your mass-gaining goals, while the protein blend draws from whey concentrate, calcium caseinate, milk protein isolate, whey isolate, micellar casein, hydrolyzed whey, and egg whites. If dairy proteins don’t sit well with you, alternatives like a plant-based or beef isolate powder might be a better fit. But for most lifters looking for a balanced shake with great taste and steady recovery, this one does the job without unnecessary complexity.

At 1260 calories per serving, this is one of the most calorie-dense mass gainers you can buy, packing 50g of protein and 250g of carbohydrates from oats, yams, and sweet potatoes. That kind of energy density helps if you struggle to eat enough whole food to gain weight or need a big post-workout shake. The natural carb sources are a difference from gainers that rely on maltodextrin alone.

Each serving packs 1260 calories, so you’re getting a dense, meal-sized shake from four scoops in a 12-pound tub that yields at least 16 servings. Compared to Optimum Nutrition Serious Mass Gainer, which also delivers high calories, Forzagen relies on natural sources like oats, yams, and sweet potatoes for its carbs and protein. That approach appeals if you want whole-food ingredients, but it means you don’t get the added creatine or BCAAs found in some other mass gainers.

A full serving of this mass gainer packs over 1,000 calories, 60 grams of protein, and 180 grams of carbohydrates, making it a dense option for anyone looking to add serious calories without multiple meals. The bag contains 108 scoops, so you get plenty of servings per container. The added creatine and glutamine are included to support recovery between heavy training sessions, which fits the extreme bulking crowd who push hard and need quick replenishment.

The 180 grams of carbohydrates per serving is a heavy carb load, so you’ll feel full for hours and might bloat if you’re not burning that energy. That’s more carbs than the 60 grams of protein in the same shake, which some lifters find unbalanced. For comparison, Dymatize Super Mass Gainer packs 245 grams of carbs and 1,280 calories per serving, but the exact serving size for that product isn’t listed here.

With 1,250 calories and 50 grams of protein in a serving, this weight gainer packs serious nutrition into one shake. What makes it stand out is the ingredient list: just three components, Naked Whey, Naked Casein, and organic tapioca maltodextrin. No artificial sweeteners, no soy, no gluten, and it’s NSF Certified for purity and safety. If you’re a hard gainer who wants a straightforward option without mystery additives, this lets you control exactly what goes into your body.

This one is unflavored, so you’ll want to blend it with fruit, peanut butter, or cocoa to make it taste like something you look forward to drinking. That’s a small inconvenience for the ingredient quality, but if you prefer a ready-to-drink flavor out of the bag, something like Dymatize Super Mass Gainer offers 1,280 calories per serving. NAKED Mass wins on purity and transparency, but it asks you to put in a little extra work in the kitchen.

With 1,100 calories and 56 grams of protein in a serving, this weight gainer packs a serious punch for anyone struggling to add mass. What sets it apart is the whole food ingredient list, barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed and sunflower oil, so you’re getting more than just processed powders. That blend makes it a smart pick if you want your calories to come from recognizable sources, not just maltodextrin and sugar.

The carbohydrate load here is 192 grams per serving, which is hefty even by mass gainer standards. It’s best saved for days when you’ve trained hard or need a big calorie surplus. Just be ready for a thick shake and a big scoop.

That calorie count comes with 245 grams of complex carbs per serving, so it’s best suited for those with high energy demands or heavy training volume. The 8-pound tub contains just 11 servings, meaning it won’t last long if used daily. For someone who needs a dairy-free, plant-based mass gainer with a short ingredient list, this product fits that need.

Fifty grams of beef protein isolate with zero fat and zero sugar per serving makes this a uniquely clean mass gainer for anyone who struggles with dairy or wants a leaner calorie source. The protein is 350% more concentrated in amino acids than steak, so your body gets a fast-acting anabolic spike. It suits lifters who want serious muscle-building fuel but need to avoid lactose, gelatin, or collagen fillers, and the Halal certification broadens its appeal further.

The carb load here is 125 grams per serving, giving you plenty of energy for recovery and growth. It might feel heavy if you’re not training hard enough to burn through it. Compared to Dymatize Super Mass Gainer, which packs 245 grams of carbs and 1,280 calories, MuscleMeds CARNIVOR is a more moderate option that still delivers over 700 calories. If you prefer a leaner gainer with a clean protein source and don’t mind the single chocolate peanut butter flavor, this is a smart pick for steady, dairy-free mass building.