Is there solid evidence behind the alloxan hypothesis?

Alloxan is used in research to damage insulin-producing pancreatic cells and create diabetes-like conditions in animals. That makes it useful for studying those cells, but it does not show that alloxan is causing diabetes in people.

The proposed human pathway needs direct evidence: reliable measurements of exposure or production in people, evidence that it reaches the pancreas at harmful levels, and studies linking it to disease. The animal model alone cannot fill in those steps.

The claims about flour and internal production need more support than the presence of a chemical in a food sample or a plausible-sounding reaction pathway. Detection by itself does not establish how much people take in, whether it survives digestion, or whether that amount causes harm.

For the proposed pathway, I’d look for replicated studies measuring alloxan in human samples and connecting those measurements to health outcomes. Without that, the claim remains unconfirmed.

Type 2 diabetes has several contributing factors, including genetics, body weight, age, and how the body responds to insulin. A single hidden toxin as the explanation for hundreds of millions of cases is a much stronger claim than the evidence described here supports.

That doesn’t mean food processing or chemical exposures are never worth studying. It means this particular hypothesis should be treated as speculative, not as an established explanation or a reason to change treatment.