Is Insulin useful for gut health?

The question of whether insulin is useful for gut health is not addressed in the provided context. Insulin is primarily a hormone for blood glucose regulation and is not used as a gut health supplement. While some basic research suggests insulin receptors exist in the gut and may influence barrier function or the microbiome, these findings are preliminary and mostly from animal models. There is no clinical evidence supporting insulin supplementation for gut health in humans, and improper use can cause dangerous hypoglycemia. For gut health, established approaches include fiber-rich foods, probiotics, and a balanced diet. If you have specific gut issues, consult a healthcare provider. The evidence level for insulin in this context is unclear/mechanistic at best.