Is e640 vegan?

E640 is the food additive code for glycine and its sodium salt, an amino acid used as a flavor enhancer, modifier, and buffering agent. It is often added to processed foods, baked goods, seasoning powders, energy drinks, and protein supplements to enhance savory flavors or reduce bitterness.

This substance can be manufactured through chemical synthesis or by breaking down proteins from biological sources. In industrial manufacturing, synthetic production typically involves reacting chloroacetic acid with ammonia. However, it can also be extracted through the chemical hydrolysis of animal-based proteins like gelatin and collagen, or occasionally from plant-based protein extracts.

E640 is possibly vegan because food labels rarely state whether the additive was synthesized, isolated from plant matter, or extracted from animal tissues. If the glycine is derived from slaughterhouse byproducts, it is not suitable for a vegan diet, but synthetic and plant-based versions are vegan. Consumers can look for a certified vegan label on the packaging or contact the manufacturer to confirm the specific source of the ingredient.