During food processing, several essential nutrients can be lost. Commonly lost nutrients include fiber, vitamins (particularly B vitamins and vitamin C), and certain minerals. Processing methods like refining grains remove the bran and germ, which contain the majority of the grain's nutritional value. Additionally, excessive cooking, canning, and freezing can further deplete vitamins and antioxidants. To retain nutrient density, it’s important to choose minimally processed foods and incorporate whole, fresh ingredients into the diet whenever possible.