This formula's own materials use this precise phrasing: berberine is studied for its role in supporting blood sugar levels already within a normal range.
This is a general-wellness framing distinct from a diabetes-treatment claim — worth reading this precise phrasing carefully rather than assuming it addresses diagnosed blood-sugar conditions.
Even framed around a normal range, berberine remains pharmacologically active and can interact with certain medications, per this formula's own materials — worth taking that caution seriously regardless of how the general-wellness claim is worded.