Best Mass Gainers of 2026

Two scoops is the whole story here, and the trick is to stop treating two as a rule. A full serving runs over 1,200 calories — near the top of this group without being the highest — and that is a serious amount of powder to get down in one sitting. We ended up using it mostly as a one-scoop shake in milk, saving the full build for days when food genuinely fell short, and that is the habit we suggest you start with.

The macro package is why it earns the top spot. Fifty grams of protein from a blend, more than 250 grams of carbohydrate, and 20-plus vitamins and minerals including vitamin C and zinc. That last part separates it from a plain scoop of whey: a gainer this size usually stands in for food rather than adding to it, and this one carries some nutritional insurance alongside the calories.

Chocolate is the flavor to buy. It is sweet and genuinely drinkable, and it holds up when you blend in oats, peanut butter or a banana to push the count higher. Thickness is the thing to manage: shaken by hand with a modest amount of water it turns into something closer to pudding, so use more liquid than the label suggests or accept that a blender is part of the routine.

One thing to know before you commit: a shake this size can sit heavily, particularly when it goes down fast, so build up to the full serving rather than starting there. Get the scoop size right and it is also one of the better-value tubs per calorie in this set, which is why the halving decision is worth making deliberately rather than by accident.

Set this beside our top pick and the gaps are small on paper and useful in practice: the same 12-pound tub, 52 grams of protein instead of 50, and a noticeably smaller hit to your card for it. If you are buying a gainer on a budget, this is where to start.

We think it is the better buy of the two for a lot of people. You get 1,280 calories, a fast-and-slow protein blend, and 14 vitamins and minerals, and the vanilla is mild enough to drink every day without getting tired of it. Two products this close come down to cost and to how the flavor holds up over a big tub, and this one is comfortable on both counts.

The compromise is the serving. Around two and a half cups of powder per shake is more than a shaker bottle handles comfortably and more than most people want in one go, so plan on a blender with 16 ounces of liquid or more, or split the serving across two drinks. Do that and it behaves; rush a full serving and a heavy stomach is the likely result.

Most gainers are maltodextrin with a protein blend stirred through. This one lists barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed and sunflower oil, and we prefer getting 1,100 calories from that list, even if the difference in the glass is smaller than the label implies.

The rest of the numbers hold up. Fifty-six grams of protein per serving is second only to the lean gainer in this guide, 192 grams of carbohydrate is enough to refill after a long session, and the scoop carries 26 grams of EAAs and 12 of BCAAs. Triple chocolate is rich enough to read as dessert.

Rich is also the risk. At 15 pounds this is the biggest bag here, and a flavor that strong is one you have to still want in week six. Buying the largest format only pays off if you will. For a long, steady bulk where the shake is a daily habit rather than a treat, that calculation matters more than the macros.

We put this on the list for one reason: it is beef protein isolate instead of whey. If dairy leaves you bloated, a gainer is usually off the table entirely, and here you get 50 grams of protein and over 700 calories with no lactose, no fat and no sugar.

The rest of the formula is built for speed — 125 grams of carbohydrate from fast-absorbing sources and a protein with the fat stripped out. It is halal certified as well, which narrows the field if that is a requirement for you.

Expect a thick shake. A serving this size, with that much carbohydrate behind it, comes out closer to a smoothie than a drink, so use more liquid than the directions suggest and drink it cold; it goes down far easier that way.

Where it fits is dairy-free bulking — the only non-whey option here, in a 6-pound tub that will not take a year to finish. Real food still does most of the work, which is true of every gainer on this page and worth remembering before you spend heavily on any of them.

Ten grams of fiber in a 1,200-calorie shake is unusual, and it changes how this one sits. Most gainers at this size lean entirely on fast carbohydrate; the fiber slows the whole thing down and makes a four-figure calorie shake feel less like a stunt.

The rest is a 4:1 carbohydrate-to-protein split, 1,200 calories and 50 grams of protein from a multi-source blend, plus branched chain and other amino acids. That ratio is built for a hard surplus: if you are naturally thin and simply cannot eat enough, this is the shape of formula that closes the gap.

We rate the fiber and the flavor; it is the texture that gives us pause. A full serving is thick and heavy enough to be a commitment, and more liquid than the label calls for is the difference between a shake and a pudding. Halve it and it behaves.

The tub size decides what this one is for. Five pounds makes it a starter gainer rather than a bulk buy: you finish it, learn whether a gainer fits your routine, and move on, which is the right shape for a first purchase.

What it does well is the everyday slot. Thirty-two grams of protein with 3 grams of leucine, from a mix of fast and slow sources, and it is light enough to drink between meals rather than in place of one. The chocolate tastes like chocolate milk, which counts for a lot when you are drinking the same shake most days.

One practical note we picked up: rinse the bottle the moment you finish. Left sitting, this one sets in the bottom like plaster, and a shaker that held it overnight takes real scrubbing.

As a first gainer it is the least intimidating thing here — half the calories of the big tubs, a flavor almost anyone will drink, and a size that does not commit you to months of the same powder. Move up to a 1,200-calorie tub once a 650-calorie shake stops being enough.

At 1,360 calories a serving this is the most caloric shake in the guide, and it gets there on five ingredients: whey, casein, organic tapioca maltodextrin, organic coconut sugar and raw cacao. No soy, no gluten, no artificial sweeteners, and 5 grams of sugar per serving.

That short list is the whole pitch, and it is one we buy. If you have had a rough time with heavily sweetened gainers, a formula this plain is the one worth trying, and the 50 grams of protein come from a whey-and-casein blend that releases over hours rather than all at once. It is also NSF certified, which is not something most tubs on this list can say.

What you pay for is the list itself, and at the same calorie intake it will not build mass faster than any other tub here — worth remembering if the label is the only reason you are here.