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Locust Bean Gum vs Lactic Acid: which is worse?

Quick answer: Both score equally on our risk model. Locust Bean Gum is allowed in the EU and allowed in the US; Lactic Acid is allowed in the EU and allowed in the US.

PropertyLocust Bean GumLactic Acid
EU statusAllowedAllowed
US statusAllowedAllowed
Risk levellowlow
Banned in
Restricted in
Categoryadditivepreservative
Where it hidesBreyers Ice Cream, Kraft Philadelphia Cream Cheese, Stoneyfield YogurtYoplait Yogurt, Kraft Ranch Dressing, Vlasic Pickles

What is Locust Bean Gum?

Locust bean gum (LBG) is a galactomannan polysaccharide extracted from the seeds of the carob tree (Ceratonia siliqua), native to the Mediterranean. It is a fine white to yellow powder that forms a thick gel when dissolved in hot water. It synergizes strongly with xanthan gum and carrageenan to enhance gel strength.

What is Lactic Acid?

Lactic acid is an organic acid naturally produced during fermentation of carbohydrates by lactic acid bacteria. It gives fermented foods such as yogurt, cheese, and sauerkraut their characteristic tangy flavor. Commercial lactic acid used in food is produced by bacterial fermentation of glucose or lactose, or in some cases by chemical synthesis.

Documented risks

Locust Bean Gum: Generally recognized as safe. EFSA's Panel on Food Additives confirmed the safety of LBG in 2017, noting no concerns at current dietary exposures. It functions as a soluble dietary fiber and can have mild prebiotic effects. No significant adverse effects have been documented in human or animal studies at food-relevant doses.

Lactic Acid: Lactic acid is a normal byproduct of human metabolism (produced during anaerobic exercise). It is generally recognized as safe at food additive levels. Excessive consumption of foods acidified with lactic acid could theoretically contribute to dental erosion, as with all acidulants. For individuals with rare inborn errors of lactate metabolism, dietary lactic acid may require monitoring.

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