Which scenario best demonstrates an upstream intervention to improve health equity?

• A. Building more clinics in existing neighborhoods
• B. Advocating for policy changes and zoning reforms to improve access to healthy foods
• C. Providing one-on-one nutrition counseling
• D. Expanding ambulance services

Answer: (B)

Upstream interventions target root causes and the social determinants of health, aiming to reduce inequities by changing policies and environments people live, work, and shop in. Advocating for policy changes and zoning reforms to improve access to healthy foods directly reshapes the landscape that shapes daily choices and what options are available, making nutritious foods more accessible and affordable for entire communities. This kind of systemic change can reduce disparities at a population level and create lasting improvements in health outcomes.

Building more clinics in existing neighborhoods increases healthcare capacity but works within the current system rather than altering the structural barriers that create unequal access. Providing one-on-one nutrition counseling helps individuals, yet it doesn’t address the broader access issues or the environments that limit healthy choices. Expanding ambulance services enhances emergency response but doesn’t tackle the ongoing access to healthy foods or other social determinants.