According to a Dietitian

Yes lactic acid is vegan. The lactic acid youll find in sourdough bread pickled vegetables and fermented vegetables is vegan. Is Lactic Acid Vegan What To Know Lactic acid is safe for vegans to eat but a similarly-named substance lactose is not. Vegan lactic acid . This is because the bacteria that come from the fermentation process are created by the sugars of the vegetables or yeast and as such no animal has been harmed in order to make them. What it does not mean though to again reiterate an earlier point is that all foods and products containing lactic acid are vegan friendly. Lactose is a naturally-occurring sugar found in milk. Lactic acid and lactate the conjugate base of LA are generally considered vegan. It provides a tangy flavor that dairy cheese has and I highly recommend trying it out. Pickled vegetables are a good source of lactic acid or the pickled cucumber you love has lactic acid. Here we will discuss what it is which lactic acids vegan sources a