Locust Bean Gum vs Soy Lecithin: which is worse?

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 Soy Lecithin?

Soy lecithin is a phospholipid mixture extracted from soybeans during oil processing, primarily composed of phosphatidylcholine, phosphatidylethanolamine, and phosphatidylinositol. It is one of the most widely used food emulsifiers globally. Most commercial soy lecithin is derived from genetically modified soybeans, though organic varieties are available.

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.

Soy Lecithin: Generally recognized as safe. Soy lecithin is highly refined, and most soy proteins that trigger allergies are removed during processing; however, highly soy-allergic individuals may react. EFSA conducted a safety re-evaluation in 2017 and confirmed its safety at current use levels. The majority of commercial soy lecithin comes from GMO soybeans, which some consumers prefer to avoid. No major toxicological risks have been identified at normal dietary exposure levels.