While type 5 diabetes is more common in resource-poor countries, I believe this is undiagnosed in the United States. Cases of clinical malnutrition involving U.S. children doubled between 2002 and 2011, and increased further in 2019.
profolus.com
Type 5 Diabetes is Officially Recognized by the International Diabetes Federation - Profolus
Experts have classified a fifth form of diabetes linked to early-life developmental problems.