Committed to improving the health of Ontarians. Since 1949, OPHA has served as a catalyst for development in the Public Health sector. Nutrition Resource Centre Credible public health nutrition at your fingertips. Strengthening the capacity of health professionals across all care settings and in all communities across Ontario. Contact Us My Purchased Items Menu The OPHA is a not-for-profit member-based association that provides leadership in advancing public health in Ontario. Our Association represents six public and community health disciplines and our membership represents many public health and community health professionals from Ontario. To learn more about us, our structure, strategic direction, or membership, please visit the following links: more... See more text