Naked Mass is the answer for anyone who wants a genuine 1,250-calorie bulk shake but refuses the 25-35 g of sugar that usually comes with it. The entire formula is three ingredients — grass-fed whey, micellar casein and organic tapioca maltodextrin — delivering 50 g of protein and just 5 g of sugar, the lowest in the high-calorie tier by a wide margin, with no artificial sweeteners, flavors or colors. It's the cleanest of the true bulk tubs. The honest qualifier keeping it at #3 rather than higher: the carbs are still tapioca maltodextrin — unsweetened and clean, but a refined starch rather than the whole-food oats and sweet potato the two picks above use — and the unflavored, roughly seven-scoop serving is thick and plain, with no creatine included. For low-sugar bulk calories from a trustworthy label, it is excellent.
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Read the complete Muscle Growth guide →A genuinely mixed result. On sugar it's outstanding — only 5 g in a 1,250-calorie shake, by far the lowest in the high-calorie tier. But the carbohydrate itself is organic tapioca maltodextrin: clean, unsweetened and gluten-free, yet still a refined, high-glycemic starch rather than the whole-food oats and sweet potato of the two picks above. High marks for the near-zero sugar, capped by the refined carb source.
A true bulk tub — 1,250 kcal and 50 g of protein in a single serving, squarely in the ideal 40-55 g protein window and enough calories to create a real surplus in one shake. It scores just below the leaders because those calories come mostly from refined maltodextrin rather than a denser, higher-quality carbohydrate mix.
Three ingredients, NSF-tested for contents, GMO-free, gluten-free and soy-free, with grass-fed whey plus micellar casein and no artificial sweeteners, flavors or colors. The short, transparent formula is a real quality signal. The only marks against: 'grass-fed' is a manufacturer sourcing claim, and there's no creatine or added micronutrient panel.
At roughly $0.51 per 100 kcal it's mid-pack — cheaper per calorie than the clean whole-food picks above it, but more expensive than the bulk maltodextrin tubs like ON and Dymatize. You're paying a modest premium over the cheapest calories for the three-ingredient, low-sugar, NSF-tested formula, which is a fair trade.
The weakest axis. A ~7-scoop, 1,250-calorie serving is genuinely thick, and the unflavored version is bland — you'll likely blend it with fruit or add your own flavoring. It mixes acceptably but the sheer serving size and lack of flavor make it harder to drink daily than a moderate-calorie shake.
“Only 5 g of sugar in a 1,250-calorie shake.”
The label states 5 g of sugar per 1,250-calorie serving, verifiably the lowest sugar in the high-calorie tier — a fraction of the ~31 g in ON Serious Mass at the same calorie count. This is the product's headline advantage and it holds up against the panel.
“Just three ingredients.”
The formula is grass-fed whey, micellar casein and organic tapioca maltodextrin — three ingredients, no fillers, flavors or dyes, which is verifiable from the label. The short, transparent list is genuine and is the basis for the product's clean positioning.
“Clean carbs / natural weight gainer.”
The carb source is organic tapioca maltodextrin — unsweetened, gluten-free and free of added sugar, so 'clean' is fair on the sugar and additive front. But maltodextrin is still a refined, high-glycemic starch, not a whole food, so 'clean' should be read as low-sugar-and-minimally-formulated rather than whole-food carbohydrate.
“NSF-tested / independently third-party tested.”
Naked Nutrition documents independent third-party testing and NSF involvement for contents, a verifiable QC practice that supports the clean label. Note this is contents/quality testing, not the athlete-focused 'NSF Certified for Sport' banned-substance tier — a meaningful distinction for tested competitors, so the claim is accurate but should not be read as sport certification.
“Grass-fed whey and micellar casein.”
The whey-and-casein blend and 50 g protein dose are label-stated and verifiable. 'Grass-fed' is a manufacturer sourcing claim rather than an independently certified one, so treat the protein amount and blend as verified and the grass-fed sourcing as a brand assertion.
The whole trick of a bulk gainer is packing 1,250 calories into a shake, and the cheap way to do that is maltodextrin plus a wall of sugar. Naked Mass hits the same 1,250 calories with only 5 g of sugar — a fraction of the ~31 g in ON Serious Mass at the identical calorie count. If you want a genuine single-shake surplus without the sugar-bomb, this is the cleanest way to get it.
This is why it sits at #3 rather than #1. The carbohydrate is organic tapioca maltodextrin: unsweetened, gluten-free and additive-free, but still a fast, refined starch rather than the whole-food oats and sweet potato in the two picks above. It's a much cleaner maltodextrin than the sugar-laden tubs, but it isn't whole food, and the ranking rewards whole-food carbs.
Grass-fed whey, micellar casein, organic tapioca maltodextrin. That's the entire formula — no artificial sweeteners, flavors or colors, NSF-tested for contents, GMO-free and soy-free. For anyone who wants to know exactly what they're drinking, the transparency is the selling point, and it's rare in a bulk tub.
The honest downsides: a ~7-scoop, 1,250-calorie serving is genuinely thick, the unflavored version is plain enough that most people blend it with fruit, and there's no creatine (add 3-5 g of monohydrate separately per Kreider 2017). None of that is a dealbreaker, but budget for a blender, some fruit and a separate creatine tub.
If you specifically need a true 1,250-calorie single shake — the kind of surplus the moderate-calorie picks above can't deliver in one serving — but you refuse the 25-35 g of sugar that usually rides along, Naked Mass is the answer. Three ingredients, 50 g of protein, and only 5 g of sugar, with NSF testing and no artificial anything. Among the bulk tubs, nothing is cleaner. It lands at #3 for two honest reasons. First, the carbohydrate is still tapioca maltodextrin — a much cleaner, unsweetened maltodextrin than the sugar-laden tubs, but a refined starch rather than the whole-food oats and sweet potato that the two picks above it use, and this ranking rewards whole food. Second, the seven-scoop serving is thick, the unflavored version is bland, and there's no creatine. Buy it if your priority is low-sugar bulk calories from a label you can trust — and blend it with fruit and add your own creatine.
Check Naked Nutrition · Naked Mass · powder · 8 lb / 11 servings on AmazonThe best-overall pick — whole-food carbs, 53 g whey and 3 g creatine, no added sugar. Choose it if you want whole-food carbohydrate and built-in creatine rather than clean maltodextrin.
See it on the list →The same 1,250 kcal and 50 g protein for cheaper per calorie, plus 25 vitamins and 3 g creatine — but with ~31 g of sugar. The pick if value beats sugar for you.
See it on the list →A 1,230-calorie tub with a superior six-source protein blend and some whole oat flour, at 16 g sugar. Choose it if protein quality matters more than absolute-lowest sugar.
See it on the list →A modest energy surplus supports hypertrophy alongside training, while a large surplus mainly adds fat. A 1,250 kcal shake is a big single-serving surplus, so use it to top up a diet you can't otherwise get calories into — not to overshoot.
Protein supplementation aids resistance-training gains up to ~1.6 g/kg/day. The 50 g dose sits in the useful range; the value of this tub is that most of its calories aren't wasted sugar past that ceiling.
The authors suggest ~0.4 g/kg per meal to optimize muscle protein synthesis. The whey-plus-casein blend here supplies 50 g in one serving, comfortably covering a per-meal target, with casein adding a slower-digesting fraction.
