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Typical source

Fermentation of plant sugars

Plain-language explanation

E270, or lactic acid, is a natural preservative and flavor enhancer found in sour foods like yogurt and pickles, produced either by bacterial fermentation or synthetically. Its halal status depends on the source; if derived from plant-based sugars or dairy, it is generally considered halal by major bodies like JAKIM and MUI. However, if produced from non-halal animal sources or fermented with enzymes from pork, it would be haram, so checking for halal certification is recommended.