When sourcing cat wet food, the most critical factor is ensuring the product meets AAFCO (Association of American Feed Control Officials) or FEDIAF (European Pet Food Industry Federation) nutritional profiles for 'Complete and Balanced' nutrition. You should prioritize suppliers with ISO 22000 or HACCP (Hazard Analysis and Critical Control Points) certifications to guarantee food safety management. For premium markets, look for Grain-Free, Non-GMO, or Human-Grade labels, and ensure the manufacturer provides a Certificate of Analysis (COA) for every batch to verify protein, fat, and moisture levels.