Webfor starters, loading up on raw fruits and vegetables will flood your body with a larger dose of vitamins, minerals, and antioxidants, which can improve muscle. Webmost research uses a classification system called nova to determine a food’s level of processing, assigning it to one of the following four groups: Webunprocessed foods refer to those that have not undergone any significant changes or alterations from their natural state. These foods are consumed in their raw, fresh, or.