Understanding the Link Between High Potassium and Health

5. Type 1 Diabetes

People with type 1 diabetes are at higher risk of developing high potassium levels, especially if their insulin treatment is not well-managed. Insulin helps move potassium from the bloodstream into cells; without enough of it, potassium can build up in the blood. This can become dangerous if left unchecked. High potassium in someone with type 1 diabetes may be a signal that their treatment plan needs adjusting—either due to missed doses, poor dietary balance, or declining kidney function.