Cast iron cookware itself does not cause diarrhea. Cast iron is a safe and commonly used material for cooking, and it does not release any substances that would directly cause digestive issues or diarrhea.
However, there are a few factors that could potentially contribute to gastrointestinal discomfort or diarrhea when cooking with cast iron:
Seasoning or maintenance: If the cast iron skillet is not properly seasoned or maintained, it can develop rust or other contaminants that may cause gastrointestinal distress if ingested. It's important to follow proper seasoning and maintenance practices to ensure the skillet's integrity.
Food interactions: Certain types of food, particularly acidic or highly reactive ingredients, can interact with the iron in the skillet and affect the taste or potentially cause stomach upset or diarrhea in some individuals. Acidic foods, such as tomatoes or citrus fruits, can leach iron from the pan and alter the flavor. However, this is generally considered safe and doesn't cause significant health issues for most people.
Cooking practices: If food is not cooked properly or if it comes into contact with bacteria, viruses, or other pathogens during preparation or storage, it can cause gastrointestinal issues like diarrhea. Proper food handling, cooking, and storage practices are essential to minimize the risk of foodborne illnesses.
It's worth noting that individual reactions to different foods or cooking methods can vary. Some people may be more sensitive to certain ingredients or cooking techniques than others. If you experience gastrointestinal discomfort or diarrhea after using cast iron cookware, it's advisable to consult a healthcare professional to determine the cause and appropriate course of action.