Hidden 'type 1.5' diabetes affects millions of adults. Here's how to spot it | BBC Science Focus Magazine

Understanding Type 1.5 Diabetes

Millions of adults are affected by a lesser-known form of diabetes, often referred to as "type 1.5" or Latent Auto-Immune Diabetes (LADA).

LADA shares similarities with type 1 and type 2 diabetes, making it challenging to identify and often leading to misdiagnosis. In fact, a recent study suggests that up to 14 per cent of people diagnosed with type 2 diabetes may actually have LADA.

LADA is characterized by an excess of sugar, or glucose, in the blood, similar to type 1 and 2 diabetes. It has been medically recognized as a distinct form of diabetes since 1993 and accounts for 3-12 per cent of all cases of diabetes in adults.

There are more than two types of diabetes, and type 1.5 diabetes, or LADA, is one of them.

Author's summary: Type 1.5 diabetes, or LADA, affects millions of adults and is often misdiagnosed.

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Science Focus Science Focus — 2025-10-20