The Claim
In adults with type 2 diabetes, approximately 52% have a red blood cell lifespan shorter than 90 days, and 19% have a lifespan of 66 days or less, which suggests that underestimation of HbA1c due to reduced red blood cell survival is a common occurrence in this population.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Lots of people with type 2 diabetes have red blood cells that don’t live as long as usual, and because of that, their A1c blood sugar test might show lower numbers than reality — meaning the test could be misleading for many.
See the scientific wording
Approximately 52% of adults with type 2 diabetes have a red blood cell lifespan below 90 days, with 19% having a lifespan of 66 days or less, indicating that HbA1c underestimation due to shortened RBC survival is a common phenomenon in this population.
What the research says
1 studyThe study shows that many people with type 2 diabetes have red blood cells that don't live as long, which can make their HbA1c blood sugar test readings lower than they should be—just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.