Does vitamin D break down when heated? The Truth About Cooking and Nutrient Loss
                                
                                
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                                    4 min read                                
                            
                                Research has shown that the stability of vitamin D is significantly influenced by heat, with losses varying depending on the cooking method. So, while the fat-soluble vitamin D is more resilient than water-soluble vitamins like C, the answer to 'does vitamin D break down when heated' is more complex than a simple yes or no.