Tempeh is a food made from fermented soya beans. A recent prospective open-label clinical trial showed that Tempeh is highly effective in reducing the HbA1c and triglycerides in patients with T2D.

The data for the study was acquired from 35 eligible participants recruited from outpatient clinics at the Kaohsiung Veterans General Hospital, Pingtung with an HbA1c of 6.99 ± 0.14 (%), and fasting blood sugar of 140.09 ± 4.18 (mg/dL). HbA1c levels were measured using a high-performance liquid chromatography (HPLC) analyzer. Fasting blood sugar concentrations were determined using the glucose Hexokinase method. Fasting serum lipid profile [triglyceride, total cholesterol, HDL, and LDL], creatinine and blood urea nitrogen concentrations were measured using enzymatic reagents.

The results show that after taking 2 g tempeh capsules daily for a period of 3 months, the levels of HbA1C and triglyceride were significantly decreased in the participants. However, no noticeable change was observed for fasting sugar, blood urea nitrogen, and creatinine..