Built Coconut Puff Protein Bar: 17g Protein at 140 cal, Labelgrade B (77/100)
B 77 / 100 — The 'protein bar that tastes like nougat' positioning. 17g protein at just 130-140 cal is an industry-leading protein-per-calorie ratio. The trade-off: the protein base is a collagen + whey isolate blend, and collagen is incomplete protein (missing tryptophan). Built honestly discloses this; some consumers care, most don't.
🛒 Buy on Amazon →The short answer
The Built Coconut Puff packs 17 g of protein into a 40 g bar at 140 calories (USDA FDC 2509968) — roughly 43 g of protein per 100 g, and just 8.2 calories per gram of protein, one of the leanest ratios any protein bar hits. But nobody buys this bar for a spreadsheet. The hook is the texture: it eats like a chocolate-coated marshmallow, light and airy, not the dense fudge of a Quest or the chewy date-paste of an RXBAR. It earns a Labelgrade B (77/100) — a maxed-out protein-density score pulled down by a collagen-led protein blend, 6 g of added cane sugar, and zero fiber. Buy it if texture and taste are what’s stopping you from eating protein bars; skip it if you need fiber or want every gram of protein to be top-tier whey.
Why the B
| Dimension | Grade | Score | Why |
|---|---|---|---|
| Protein density | A+ | 100 / 100 | 43 g per 100 g — pinned at the formula’s ceiling, and rare for a bar this light |
| Ingredient quality | B- | 73 / 100 | Collagen peptides lead the blend (incomplete, missing tryptophan); whey isolate backstops it. Real cane sugar and dark chocolate over sugar alcohols |
| Saturated fat load | B | 76 / 100 | 1.5 g per bar (~3.8 g per 100 g) — moderate, almost all from the chocolate coating |
| Sodium load | B- | 73 / 100 | 90 mg per bar (~225 mg per 100 g) — low for the category |
| Sugar load | B | 76 / 100 | 7 g total / 6 g added cane sugar — more than Quest’s 1 g, but no artificial sweeteners |
| Fiber | F | 30 / 100 | 0 g — there’s no fiber source in a collagen + whey + gelatin formula |
The two scores doing the damage are both structural. The F on fiber is unavoidable: a marshmallow-textured bar built from collagen, whey and gelatin simply has nothing fibrous in it — Quest’s 14 g comes from soluble corn fiber that Built doesn’t use. The B- on ingredients is the more interesting knock, and it’s the collagen story (below). What keeps the bar in B territory rather than C is the perfect protein-density score plus genuinely low sodium.
The collagen question, answered honestly
This is the one thing worth understanding before you buy. Built lists “premium collagen protein blend” first, and collagen is the cheap, gelatin-friendly protein that makes the puff texture possible — but it’s an incomplete protein, missing the essential amino acid tryptophan, which makes it a poor standalone driver of muscle growth. Built doesn’t hide this; it pairs the collagen with partially hydrolyzed whey protein isolate as the second ingredient, a complete protein that covers the missing amino acids.
So the 17 g is real and the label is honest — but it’s mixed-quality protein, not 17 g of pure whey. The practical read: as an all-day snack or a “tastes like candy” protein hit, it’s excellent. As your only post-workout protein, a whey- or milk-isolate bar will do more per gram. That’s precisely why this scores B- on ingredients and Quest, on an isolate-only blend, scores the same B- only because of its long sweetener list — same grade, opposite reasons.
How it stacks up against the bars people actually compare it to
| Product | Protein per bar | Calories | Cal per g protein | Added sugar | Sweetener |
|---|---|---|---|---|---|
| Built Coconut Puff (this product) | 17 g (40 g) | 140 | 8.2 | 6 g | Real cane sugar |
| Quest Chocolate Chip Cookie Dough | 21 g (60 g) | 200 | 9.5 | 0 g | Erythritol + stevia + sucralose |
| RXBAR Chocolate Chip | 12 g (52 g) | 220 | 18.3 | 0 g (13 g natural, from dates) | Dates |
Three bars, three philosophies. Built wins protein-per-calorie outright (8.2 cal/g is the best of the three) and is the only one with a soft, candy-like texture. Quest wins on macros — more protein, 14 g of fiber, 1 g of sugar — but does it with a sucralose-led sweetener stack and a denser bite. RXBAR wins on simplicity — seven whole-food ingredients — but pays for it with 220 calories and 18.3 cal per gram of protein, more than double Built’s. If your barrier to eating protein bars is that they taste engineered or feel like chewing clay, Built is the direct answer; if you’re optimizing fiber or chasing the highest-quality protein, Quest is the stricter pick.
What 17 g of protein actually equals
One Coconut Puff delivers about the protein of 55 g of cooked chicken breast (~1.9 oz) or 3 large eggs — at 140 calories, in a shelf-stable wrapper you can keep in a bag or glovebox. The bar wins on convenience; the chicken or eggs win on protein quality, since they’re complete proteins and the bar’s collagen half is not. For topping up daily protein it’s a wash that favors the bar; for serious muscle work, real food (or an isolate-only bar) edges ahead.
Ingredients
Premium collagen protein blend (collagen peptides, partially hydrolyzed whey protein isolate), dark chocolate (sugar, chocolate liquor, cocoa butter, milkfat, soy lecithin, vanilla), glycerin, water, sugar, gelatin, natural flavors, nonfat dry milk or cultured dextrose. (Verbatim from the USDA Branded Foods entry, FDC 2509968.)
Read top to bottom, the formula tells the whole story: collagen first (texture + bulk), whey isolate right behind it (the complete-protein fix), dark chocolate for the coating and most of the sugar, then gelatin and glycerin — the two ingredients that whip the bar into its signature marshmallow puff.
Where to buy
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Quick Facts
Per serving · 1 bar (40 g)
840229303816Full nutrition facts
| Nutrient | Per Serving (1 bar (40 g)) |
|---|---|
| Calories | 140 |
| Protein | 17g |
| Total Fat | 3g |
| Saturated Fat | 1.5g |
| Trans Fat | 0g |
| Total Carbohydrates | 13g |
| Dietary Fiber | 0g |
| Total Sugars | 7g |
| Added Sugars | 6g |
| Sodium | 90mg |
| Cholesterol | 0mg |
| Calcium | 77mg |
| Iron | 1mg |
| Potassium | 161mg |
Scope: This page applies specifically to Built Coconut Puff Protein Bar (5.64 oz (160 g) — 4-bar pack) · UPC 840229303816. Other sizes, flavors, or formulations may differ.
How this fits each diet
Each score is computed from the same USDA nutrition + ingredient data, against the published rules of each diet. They tell you "does this food fit this diet" — not whether the diet is right for you.
contains animal-derived ingredients
contains meat, fish, or gelatin
no wheat, barley, rye, or malt detected in USDA ingredient list
Frequently Asked Questions
How much protein is in a Built Coconut Puff bar?
17 g per 40 g bar (USDA FDC 2509968) — about 43 g per 100 g. At 140 calories, that's 8.2 calories per gram of protein, one of the lowest figures in the protein-bar category. Quest Cookie Dough runs 9.5 cal/g; RXBAR Chocolate Chip runs 18.3. The full 4-bar pack holds 68 g of protein.
What does the 'Puff' texture actually feel like?
Light and airy — closer to a chocolate-coated marshmallow or a piece of nougat than to a dense, chewy bar. That texture is engineered: gelatin and glycerin whip air into the whey-and-collagen base so it sets soft instead of fudgy. It's the entire reason the bar exists, and it's polarizing — reviewers tend to call it either 'finally a bar that eats like candy' or 'too foamy.' If you disliked the density of Quest or RXBAR, this is the opposite end of the texture spectrum.
Why does it use collagen if collagen is an incomplete protein?
Collagen peptides are listed first because they cost less and carry the soft, chewy 'puff' structure that gelatin-based confections need — but collagen is missing tryptophan, so on its own it's a weak muscle-building protein. Built backs it with partially hydrolyzed whey protein isolate (the second ingredient), which is a complete protein that fills the amino-acid gap. The result is 17 g of mixed-quality protein: the math is honest, but if your only goal is maximizing muscle protein synthesis, a whey- or milk-isolate-only bar like Quest does it more efficiently. Labelgrade scores this blend as B- ingredient quality for exactly that reason.
Only 6 g added sugar — how does Built keep it low without sugar alcohols?
It doesn't lean on erythritol or maltitol the way most low-sugar bars do — there are no sugar alcohols in the panel. Built uses real cane sugar (the 'SUGAR' in the dark-chocolate coating is the main added-sugar source) plus glycerin, which adds sweetness and moisture without counting as sugar. The total is 7 g sugar / 6 g added — higher than Quest's 1 g, but it comes from food most people recognize rather than a sweetener blend, which is the deliberate trade-off Built is making.
Built Puff vs the original Built Bar — which is this?
This is the Puff line. The original Built Bar is denser and fudgier at ~58 g per bar; the Puff (this product) is the lighter marshmallow version at 40 g per bar. Both hit 17 g protein at roughly 130-140 cal, so the macros are nearly identical — texture is the whole difference, and the Puff is the newer, more widely stocked line.
How does it hold up in heat or the fridge?
The bar is built for room temperature. Above ~75°F the dark-chocolate coating softens and the puff goes sticky; below ~55°F (or refrigerated) the marshmallow center firms up and eats noticeably denser, closer to a regular bar. A hot car will turn it into a soft mess — store it cool but not cold if you want the intended airy texture.
Is it gluten-free?
The Coconut Puff variant is marketed gluten-free, and its ingredient list has no wheat. But Built's lineup is not uniform — the Coconut Brownie Chunk variant, for example, is labeled 'Not Gluten Free.' Check the specific flavor's wrapper, and note that even no-wheat flavors may be made on shared equipment.