Best Lowest Sugar Protein Bars

Think! Brownie Crunch is built for brownie lovers who want protein: 20g per bar from a blend led by soy protein isolate, supported by whey isolate and calcium caseinate.

The sweetness skips cane sugar entirely, leaning instead on maltitol syrup (a sugar alcohol) and vegetable glycerin (a plant-derived syrup) to keep sugar at 0g while preserving a soft, fudgy chew.

Cocoa and a little real chocolate carry the flavor, while 8g of fat come from almond butter plus small amounts of palm kernel and sunflower oils. It’s a fairly processed formula that uses three modern helpers—maltitol, glycerin, and lecithin (an emulsifier)—for texture and sweetness, totaling 230 calories in a gluten-free bar.

Grenade’s Mint Chocolate Protein Bar wraps a 21% dark‑chocolate shell around a serious protein center. The backbone is a dairy blend—mostly casein plus whey—supported by a little soy protein and collagen.

Carbs sit mid‑range at 19g, but they’re engineered for low sugar: maltitol, a sugar alcohol in the coating for sweetness; polydextrose, a refined soluble fiber that adds bulk; and glycerol, a plant‑derived syrup that keeps the bar soft.

Fat stays modest at 6. 8 grams, coming largely from cocoa butter and milk fat with a touch of soy oil.

It’s a confectionery‑style build with a longer ingredient list (22 items) and a handful of designed helpers to deliver that mint‑chocolate hit without much sugar.

Imagine jerky pressed into a tidy rectangle. EPIC’s Beef Barbacoa-Inspired Bar leans on real beef for protein and a pantry’s worth of spices—garlic, cumin, paprika, oregano—for flavor.

You get 11 grams of meat protein with just 4g carbs, 0g sugar, and 110 calories, so it eats like a savory pick‑me‑up rather than dessert. Two behind‑the‑scenes helpers keep it safe and tangy: a touch of encapsulated lactic acid for gentle twang and cultured celery powder, a plant‑derived source of nitrite used in curing.

Meet the salted caramel bar built on an unconventional protein trio: cricket, pea, and egg white.

Sweetness skips cane sugar in favor of allulose and a whisper of monk fruit, while a tapioca-based binder keeps the chew soft; the helper list stays short and purposeful, with no sugar alcohols like maltitol or erythritol.

Carbs show up via oat flour and pea–rice crisps, and sunflower butter with ground flax contribute mostly unsaturated fats and a little fiber. The result is a lighter bar for the category—160 calories, moderate protein, and a restrained, not-too-sweet flavor.

Triple Chocolate and fully vegan, Oatein’s Hype leans on a trio of plant proteins—soy isolate, hydrolyzed wheat protein, and pea isolate—to reach 20. 1 grams of protein, which is near the top of the category.

The chocolate is real cocoa—cocoa mass, cocoa powder, and crunchy nibs—for a deeper flavor than plain cocoa flavoring.

Sweetness is handled mostly by maltitol (a sugar alcohol) with a touch of stevia, and structure comes from soluble tapioca fiber, a refined fiber from cassava that helps create that soft chew while keeping sugar low.

Carbs land mid‑pack and include a little whole‑grain oat flour alongside those refined helpers. Fat stays modest at 5 grams, mostly from cocoa butter, and the wheat‑derived protein means it isn’t gluten‑free.

Maximuscle’s Chocolate Fudge (Vegan Creamy Core) is a plant‑protein, low‑sugar chocolate bar that reads like dessert and lands lighter on the macros.

The protein comes from a vegan blend—soy isolate leads, with pea and a touch of almond—while the fudgy texture and “real chocolate” taste lean on cocoa mass, cocoa butter, cocoa powder, and vanilla.

Sugar stays near zero by using maltitol‑sweetened dark chocolate and refined fibers like polydextrose and oligofructose for bulk and mild sweetness, plus glycerin (a plant‑derived syrup) to keep the center soft.

Fats sit mid‑range and come mostly from cocoa butter, with rapeseed (canola) and a little coconut oil rounding out the melt. The twist: despite the protein‑bar label, it delivers 9.

4g per bar—more a chocolate fix with a protein boost than a post‑workout sledgehammer.

Quest’s Oatmeal Chocolate Chip is built on a milk protein isolate plus whey protein isolate blend, delivering 20g of complete dairy protein with minimal lactose. The oatmeal-cookie DNA comes from oats, almonds, cinnamon, and real chocolate, while sweetness leans on fiber and modern low-calorie sweeteners rather than cane sugar.

Calories land on the lighter side at 180, the carbs look higher on the label but many are fiber or sugar alcohols, and fat is a modest mix from almonds and cocoa butter.

You’re looking at a short list of whole foods supported by five functional additives to keep it chewy and sweet without piling on sugar.

ONE Brands’ Lemon Cake is a dairy-based bar built around a milk-and-whey blend that puts 20g of protein into 210 calories. It’s a 19-ingredient, gluten-free formula where the carbs aren’t oats or dates but a mix of soluble fibers and sweetness helpers designed to keep sugar low and texture soft.

Fat stays modest, coming from structure-building palm kernel oil plus sunflower seed butter/oil for a creamier bite. The sweetness leans on refined sweeteners rather than cane sugar, and the sunny hue comes from beta carotene while natural flavors carry the lemon-cake note.

It uses a handful of functional additives—about five by our count—to create that soft, icing-like, candy-bar experience.

This is a dairy‑and‑soy bar at heart: milk protein isolate and whey isolates/concentrates lead the charge, with soy isolate rounding out 20g of protein in a 180‑calorie package.

The brownie flavor comes from real cocoa and unsweetened chocolate, while the sweetness leans engineered—mainly maltitol (a sugar alcohol that isn’t fully absorbed) and glycerin—plus refined starches from rice, tapioca, and corn to create that fudgy chew; net result is just 1g of sugar.

Fat stays low at 4. 5g courtesy of fractionated palm and palm kernel oils that keep the bar firm, with smaller contributions from almond butter and dairy fat.

The label runs long, with 13 functional additives for texture and color, including gums, emulsifiers, titanium dioxide for whiteness, and synthetic dyes such as Red 3, which is slated to be phased out in U.

S. foods.