Yes, heating destroys lactase, but doesn't remove lactose
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4 min read
Over 60% of the world's population is affected by lactose intolerance to some degree. A common misconception suggests that heating milk can mitigate symptoms, but this is based on a misunderstanding of how heating destroys lactase, the enzyme responsible for digesting lactose. The truth is that while heat does inactivate the lactase enzyme, it does not alter the lactose sugar itself.
