Not all ready-to-eat foods contain harmful preservatives, but some do. Preservatives are used in food processing to extend the shelf life of products and prevent spoilage. While some preservatives are safe and approved by regulatory agencies, others may have potential health risks if consumed in large amounts or over an extended period of time.
To ensure that you are consuming safe and healthy ready-to-eat foods, it's important to read the labels and check the ingredient list. Look for brands that use natural preservatives, such as vinegar or citrus extracts, rather than synthetic preservatives like BHA or BHT. Additionally, choosing fresh, whole foods and cooking meals from scratch can help to reduce your exposure to preservatives and other additives.