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About what share of diagnosed diabetes cases are type 2?

About 90% to 95%; type 1 is about 5% to 10%.

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  1. About 50%
  2. About 90% to 95% ✔
  3. About 25%

Why: Type 2 is by far the most common kind. CDC says it makes up about 90% to 95% of diagnosed cases, while type 1 makes up about 5% to 10%.

Huh, didn't know that: In type 2, the body doesn't use insulin well and can't keep blood sugar at normal levels.

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Type 2 diabetes is so common it should get a frequent flyer card.
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References

Answer: About 90% to 95%. Type 2 is by far the most common kind. CDC says it makes up about 90% to 95% of diagnosed cases, while type 1 makes up about 5% to 10%.

  1. CDC: Diabetes Basics www.cdc.gov/diabetes/about/index.html
    Type 2 diabetes accounts for about 90% to 95% of all diagnosed cases of diabetes
    Checked 2026-10-09.
  2. CDC: Diabetes Basics www.cdc.gov/diabetes/about/index.html
    type 1 diabetes accounts for about 5% to 10%.
    Checked 2026-10-09.

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