Can curcumin lower blood sugar in people with prediabetes?

Certain curcumin products lowered fasting blood sugar by about 10–11 mg/dL in people with prediabetes, the article reports. The T Nation roundup covers eight research findings on Turmeric / Curcumin. Its blood sugar section describes a review of 24 trials involving 2,000 people. They had prediabetes, meaning blood sugar was high but below the diabetes range. The clearest number was the drop in Fasting Blood Glucose, a blood sugar test taken after not eating overnight. Some products also improved longer-term blood sugar control or how well the body used insulin. Insulin is the hormone that helps move sugar into cells. Some also improved LDL Cholesterol, though the excerpt gives no amount for that change. The product matters. The article says ordinary curcumin is hard for the body to absorb. Much passes through the gut without reaching the blood. The reported benefits came from certain product types, not every turmeric supplement. The supplied excerpt does not give their doses or treatment lengths. It also does not show whether the benefits lasted after use stopped. For BioSocial members, this makes product details useful context for shared bloodwork. A before-and-after result is easier to compare when it includes dates, dose, and product name. Notes about changes in food, activity, and medicines also help put results in context. A change in one person's numbers cannot show what caused it. What changes, if any, have you seen in your bloodwork while using these supplements, and what else changed during that time?