Locust Bean Gum

What It Is

Natural thickening agent derived from carob tree seeds, used to improve texture in wet foods.

Compare to Similar Ingredients

• vs. guar gum: Both are plant-based thickeners. Locust bean gum (from carob seeds) creates smoother texture and is more stable, while guar gum is a stronger thickener.
• vs. xanthan gum: Locust bean gum is a seed extract that works by physical thickening, while xanthan gum is a bacterial fermentation product that gels more strongly.
• vs. acacia gum: Locust bean gum is a galactomannan thickener from carob seeds, while acacia gum is a prebiotic fiber from tree sap with milder thickening.

Why It's Used in Dog Products

Manufacturers include locust bean gum in dog food, treats, and supplements for several reasons:

• Natural thickening and stabilizing
• Improves texture in wet foods
• Prevents separation
• Binds water

Quality Considerations

When evaluating locust bean gum in dog products, it's important to understand functional purpose, safety testing, and nutritional contribution. This ingredient's quality and appropriateness can vary significantly based on sourcing, processing, and the specific formula it's used in.

Scientific Evidence

Locust bean gum (also called carob gum) is a natural thickening agent extracted from the seeds of the carob tree (Ceratonia siliqua). It's used in pet food as a stabilizer, thickener, and texturizer, particularly in wet foods and gravies. As a soluble fiber, it provides functional benefits beyond texture enhancement.

Key Research Findings

• Locust bean gum is approximately 75-85% galactomannan, a soluble fiber that absorbs water and creates viscous solutions
• It synergizes with other gums (particularly xanthan gum and carrageenan) to create improved texture and stability—this is why they're often used together
• As a soluble fiber, locust bean gum can support digestive health by providing prebiotics for beneficial gut bacteria
• Locust bean gum has a high water-binding capacity, helping wet foods maintain moisture and prevent separation during storage
• It's generally well-tolerated with minimal digestive side effects at typical inclusion rates (0.2-1% of formula)
• AAFCO recognizes locust bean gum as safe for use in pet food

Evidence Level: Well-established as safe and effective for texture management. Moderate evidence for prebiotic benefits and digestive support.

How to Spot on Labels

What to Look For

Locust bean gum appears most frequently in wet food formulas (canned food, pouches, gravies) where it prevents separation and maintains smooth texture. It's less common in dry kibble. When present, it's typically in small amounts for functional purposes rather than nutritional contribution.

Alternative Names

• Locust bean gum — The standard listing
• Carob gum — Alternative name referring to the carob tree source
• Carob bean gum — Another common variant
• LBG — Abbreviation, rarely seen on consumer labels

Green Flags

• In wet food formulas — Locust bean gum serves a legitimate functional purpose in maintaining gravy and pâté textures
• Listed with xanthan gum or carrageenan — These combinations are standard in wet food technology and create superior texture
• Low position (after 20th ingredient) — Indicates minimal use for functional purposes

What's Normal

Locust bean gum is a standard ingredient in high-quality wet foods and is neither a concern nor a selling point. It's a functional necessity for creating smooth, stable textures that don't separate during shelf life. Wet foods without any gums or thickeners may have texture and stability issues.

Typical Position: In wet foods, locust bean gum typically appears in positions 18-30. It's uncommon in dry kibble formulas.

Frequently Asked Questions

Related Reading

Learn more: Food Thickeners & Gums in Dog Food: Complete Safety Guide · How to Read Dog Supplement Labels