Kirkland Signature Protein Bar, Cookies and Cream — ENGINEERED

Munch or Dump rates Kirkland Signature Protein Bar, Cookies and Cream by Kirkland Signature ENGINEERED — score 35/90.

This is a lab-built macro bar, not food from a kitchen. It hits 21g of protein and just 1g of sugar by leaning on protein isolates, isolated fiber syrups, and a two-part sweetener system of erythritol plus stevia. Nutritionally useful, but the sixteen-ingredient formula is engineered to spec.

Why this verdict

• Ultra-processed (NOVA 4) — built from protein isolates and isolated fiber syrups, not whole ingredients
• Sweetness engineered with two sugar substitutes: erythritol and stevia
• Fiber comes from soluble corn fiber and isomalto-oligosaccharides, not from food
• Sixteen-ingredient formulation designed to hit a protein-and-low-sugar target

Ingredients (11)

• Milk & whey protein isolate (safe) — High-quality complete protein; the reason to buy this bar.
• soluble corn fiber (moderate) — Isolated fiber syrup used to bulk fiber and texture; can cause bloating in larger amounts.
• Isomalto-oligosaccharides (moderate) — Processed fiber/sweetener syrup; digests partly as sugar and can upset the gut.
• Cashew butter (safe) — Real nut butter for fat and mouthfeel.
• Erythritol (moderate) — Sugar alcohol sweetener; generally tolerated but can cause GI discomfort and is under cardiovascular study.
• Natural Flavors (moderate) — Undefined flavor system layered over the base dough.
• Sunflower Oil (moderate) — Refined oil, present in a small amount.
• Cocoa powder (alkalized) (safe) — Standard cocoa for flavor.
• Steviol glycosides (stevia) (safe) — Plant-derived high-intensity sweetener; the second sweetener in the stack.
• Sunflower Lecithin (safe) — Soy-free emulsifier.
• calcium carbonate (safe) — Calcium/mineral source and texture agent.

Healthier alternatives

• RXBAR Peanut Butter Protein Bar
• Chocolate Sea Salt Protein Bar
• GoMacro MacroBar Peanut Butter Chocolate Chip
• GoMacro MacroBar Sunflower Butter + Chocolate
• Perfect Bar Dark Chocolate Chip Peanut Butter