Best Low Calorie Soy-Free Vegetarian Protein Bars

Magic Spoon’s Chocolatey Peanut Butter Protein Bar reads like dessert but eats like a light snack. Its protein is milk-based—casein and whey—for a complete profile and a steadier release than many plant bars.

It keeps calories strikingly low at 140 and sugar at 1 gram by swapping much of the sugar and starch for allulose (a low-calorie sugar) and soluble fibers refined from tapioca and chicory, plus a touch of glycerin to keep it soft.

Fat comes mostly from peanut butter, with a bit of palm oil to hold the bar together, and the chocolate–peanut flavor is built from real peanut butter and alkalized cocoa.

To get that crispy cereal-bar texture, it leans on six refined helpers (sweeteners, fibers, emulsifier, and flavors)—great if you want low sugar and consistency, less ideal if you prefer a minimalist ingredient list.

Orgain’s S’mores Protein Bar stays plant-based, using an organic blend of brown rice protein, pea crisps, and a little chia, then leans on real chocolate chunks for the campfire flavor. At 150 calories with 5 grams of fat and 6 grams of sugar, it reads more snack than meal replacement.

Its 16-ingredient recipe relies on refined binders—tapioca syrup and a starch-derived IMO—plus erythritol (a sugar alcohol) to keep sweetness up while listed sugars stay modest, and it uses four functional add-ins to keep the texture soft and stable.

Fats come mostly from almonds and chia, with a touch of cocoa butter, so you’re looking at a mostly unsaturated fat profile. If you prefer oat- or date-based bars, note this formula is more engineered to control sugars and texture.

Mosh’s Pumpkin Spice Chocolate Chip keeps things light and plant-forward: pea protein and almonds anchor the bar, spices and cocoa bring the fall flavor, and the brand’s Brain Blend adds 100% DV vitamin B12 and 25% DV vitamin D3.

Sweetness leans on allulose—a low-calorie sugar that tastes like sugar but barely nudges blood glucose—with tiny boosts from stevia and monk fruit.

Carbs are padded by soluble tapioca fiber, a resistant dextrin refined from cassava that adds bulk and a softer chew, rather than grains; fats come mostly from almonds with a little cocoa butter and coconut oil.

There are four functional additives to keep sweetness, softness, and mixability in line, and the whole thing lands at a very snackable 150 calories.

MOSH’s Cookie Dough Crunch builds its dessert‑y personality with almonds, real chocolate, and cocoa butter—the fat here comes from those ingredients rather than seed oils. Under the hood, the protein is classic dairy—whey isolate and concentrate plus grass‑fed milk protein isolate—delivering 12g in a 180‑calorie bar.

Carbs favor soluble tapioca fiber over oats or dates, aiming for modest total carbs and steadier energy. Sweetness comes from a blend of erythritol (a zero‑calorie sugar alcohol) and plant‑based sweeteners like stevia and monk fruit, with glycerin to keep the chew.

A small Brain Blend adds vitamin D and a few botanicals, and the formula relies on about five modern additives to stay low‑sugar and cohesive.

Kirkland Signature’s Chocolate Peanut Butter Chunk sticks to a classic dairy duo for protein—milk protein isolate plus whey isolate—then leans on real peanut butter, peanut flour, and Dutch‑processed cocoa to land the chocolate‑chunk flavor.

Carbs come mostly from soluble tapioca fiber, a refined fiber made from cassava, with erythritol and a touch of stevia providing sweetness instead of sugar. Fat stays modest and mostly peanut‑derived, with a little cocoa butter for richness.

The additive list is short and functional—sweeteners plus a pinch of sunflower lecithin to keep everything smooth—yielding 21g of protein, 23g of carbs, 6 grams of fat, and just 2g of sugar in 190 calories.

IQBAR Chocolate Sea Salt may sound like dessert, but it’s built like a purposeful plant-based snack. Protein comes from peas—both isolate and tiny crisps—while the chocolate character is real cocoa, unsweetened chocolate, and cocoa butter, finished with a pinch of sea salt.

The macro story is unusual for a chocolate bar: fat-forward, very low in digestible carbs, and modest in calories, with sweetness supplied by stevia instead of sugar. Almonds add creaminess plus a notable amount of naturally occurring vitamin E, which IQBAR also boosts with an added dose.

There’s even a light sprinkle of lion’s mane; interesting, but better treated as a bonus than a benefit.

good! snacks’ good!

KETO Choc Fudge reads like dessert but builds its base with plant protein. Pea protein crisps team up with brown rice protein, while almond butter, alkalized cocoa, dairy-free chocolate chips, and cocoa butter create that fudge-like chew.

Instead of dates or oats, it leans on soluble tapioca fiber and allulose—a low-calorie sugar—to bind and sweeten with a gentler blood-sugar impact. Fats come primarily from almonds and cocoa, not added seed oils, and the bar stays light at 170 calories with just 1g sugar.

Additives are kept modest: two small helpers, vegetable glycerin for softness and sunflower lecithin for texture.

RXBAR Chocolate Sea Salt sticks to the basics: dates bring the sweetness and chewy structure, egg whites supply the protein, almonds and cashews add richness, and real chocolate and cocoa with a pinch of sea salt finish the flavor.

The protein is egg white—clean, dairy-free, and complete—so you get substance without whey. Macros tilt fruit-and-nut: natural sugars from dates, moderate fats from nuts and cocoa butter, and a lighter 200-calorie tally for a satisfying snack.

There are no sugar alcohols or syrupy tricks here—just a short label (with a touch of natural flavor) that lets the chocolate–salt combo speak for itself.

Atlas leans into peanut butter and dark chocolate but rewrites the sugar script. The protein is fully plant‑based—a rice‑and‑almond base with crunchy pea‑protein crisps—boosted by peanut butter and peanut flour.

The chew comes from soluble tapioca fiber (a refined binder from cassava) and a little plant‑derived glycerin to keep things soft, while sweetness relies on allulose, a low‑calorie sugar that behaves like the real thing, plus concentrated monk fruit extract.

Fats are mostly peanut‑driven, with small amounts of cocoa butter and coconut oil for structure. Net result: a vegan, gluten‑free, keto‑friendly bar with 15 grams of protein, 180 calories, only 0.

5 grams of sugar, and a quietly impressive 38% Daily Value of iron from the cocoa components.