מה ההגדרה של מזונות אולטרא מעובדים ומה עושים עם כל הנזק הזה NOVA Classification Most research uses the NOVA classification, which groups foods by the purpose and extent of processing, not just nutrients. In NOVA, UPFs are Group 4: industrially manufactured products made from combinations of refined ingredients (starches, sugars, oils, protein isolates) plus additives, with little (or no) intact whole food remaining.