Red Cross Screening Reveals Widespread Prediabetes Among Donors

  • Approximately 1 in 5 U.S. blood donors have elevated A1C levels, indicating prediabetes or diabetes.
  • 80% of donors with elevated A1C levels were diagnosed with prediabetes, a condition often reversible with lifestyle changes.
  • The Red Cross began offering free A1C screening in 2025, testing over 920,000 donors.
  • In March 2026, the Red Cross will provide free A1C screening to all blood, platelet, and plasma donors.
  • Donors receiving blood donations in March will receive a $15 Amazon.com Gift Card.

The Red Cross's initiative highlights a significant public health challenge: the prevalence of undiagnosed prediabetes and diabetes within the U.S. adult population. By leveraging its existing infrastructure and donor base, the organization is uniquely positioned to identify at-risk individuals and bridge gaps in preventative care, but faces challenges related to data privacy and program scalability. This initiative could shift the paradigm of preventative care by integrating health screening into existing, routine activities.

Donor Behavior
The incentive of a gift card may skew the March screening results, making it difficult to assess the true prevalence of prediabetes within the broader donor population. Further analysis will be needed to determine if this incentive impacts long-term screening participation.
Data Privacy
The Red Cross's ability to leverage donor health data for broader public health insights raises questions about data privacy and security protocols, particularly as the organization expands its screening program.
Program Scalability
The Red Cross's success in identifying prediabetes through blood donors suggests a potential model for broader preventative health screening, but the logistical and financial challenges of scaling this program nationally remain significant.