Processed foods are those foods, which are altered from their natural state for convenience. However, Ingredients used to enhance the quality and flavor of the processed food contain harmful components that can harm your health. Just take the note of Castoreum , which is a strong-smelling brown substance that consists of perineal glands and secretion of beaver. Sounds wired, but it is true that these ingredients are used to enhance the flavor of the processed food. Likewise, many ingredients are taken from insects, cow, dogs and cats to provide the taste and this can be very dangerous for the health. These foods should be seriously avoided to stay healthy. It is also stated in the research of UCLA that it only takes 2 months to lower the levels of brain chemicals, which are responsible for learning and memory upon the diet of processed food.