Detailed information about organization Information about alert on kosher products 2025-01-16 Source of information Information from OU Kosher , USA Website https://oukosher.org/kosher-alerts/ou-kosher-alerts-happy-day-whey-protein/ Notes Unauthorized OU The Orthodox Union does not certify Happy Day Whey Protein. Some bags bear an unauthorized OU mark. Corrective actions are being implemented.