Baking soda (sodium bicarbonate) is a pure chemical leavening agent with zero carbohydrates. It is commonly used in low-carb and keto baking when paired with an acidic ingredient to produce lift.

Quick Carb Snapshot

  • Carbs (per 100 g): 0 g
  • Carbs (standard portion): 0 g per tsp
  • Glycemic Index: 0
  • Similar Low-Carb Options: Baking powder (adds carbs)
  • Blood Sugar Impact: Lower
  • Keto-Friendly? Yes

Key Traits

  • Texture: Fine powder
  • Flavor: Alkaline, bitter if overused
  • Carb Impact: None
  • GI / GL Notes: No glucose effect
  • Common Uses: Baking, tenderizing, deodorizing

Best For

  • Low-carb and keto baking
  • Recipes with acidic ingredients
  • Crisping and browning

Avoid For

  • Using alone without acid
  • Overuse (soapy taste)
  • High-sodium restricted diets

Why Choose Baking Soda for Low-Carb Eating

Texture & Structure

  • Creates lift via acid reaction
  • No starch carrier
  • Used in very small amounts

Flavor & Nutrition

  • No calories or carbs
  • High sodium content
  • Neutral when balanced properly

Storage & Shelf Life

Pantry

Store sealed in a dry location.

Cooked

Prepared foods store normally.

Signs It Has Gone Bad

  • Loss of fizz with acid
  • Moisture clumping
  • Expired date

Allergy & Dietary Flags

  • Gluten-Free: Yes
  • Nuts: No
  • Nightshade: No
  • Vegan / Vegetarian: Yes

Commonly paired with baking powder and cream of tartar,
baking soda is a zero-carb leavening agent.

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