Nutrition & Health Which vitamin is destroyed during pasteurization? June 2, 2026 by Myaya | Leave a Comment The vitamin most significantly destroyed during pasteurization is Vitamin C (ascorbic acid). While pasteurization is crucial for public health by killing harmful bacteria, it also reduces the levels of certain heat-sensitive vitamins in milk, with Vitamin C being the most affected. Understanding Vitamin Loss in Pasteurization Pasteurization is a vital process for ensuring the safety […] Read more ยป