Background: Volten VR4® capsules contain extract of Kaempferia parviflora (KP), which has been claimed to reduce blood glucose in patients with diabetes.

Objective: To evaluate the efficacy of Volten VR4® on healthy individuals and Type-2 Diabetes Mellitus volunteers.

Materials and Methods: The extracts of 400 mg capsules of KP were consumed for five days. The fasting and blood glucose levels of 2-hour postprandial were measured at baseline and day 5. A group of 15 healthy young adults between the age of 20- and 30-years old were the control group of the present study, while 12 volunteers aged 35 to 75 years old diagnosed with Type-2 Diabetes Mellitus constituted the experimental group. Data were validated through the Willcoxon and Friedman test statistics and error distribution.

Results: It had been shown that the specificity of KP reduced blood glucose levels and has associated with the flavonoids and polymethoxyflavones components. The results showed that consuming VR4® capsules significantly reduced blood glucose, either at the state of fasting or postprandially in diabetic individual.

Conclusion: Volten VR4® Kaempferia parviflora extract is safe to be consumed at 400 mg at one time. The study also has shown that the participants are free from adverse reactions and hypoglycaemia.

Keywords: Kaempferia parviflora; Blood glucose; Type-2 Diabetes Mellitus; Flavonoids; Polymethoxyflavones; Hypoglycemia and heavy metal elements

DOI: doi.org/10.35755/jmedassocthai.2021.10.12751

Received 5 April 2021 | Revised 30 August 2021 | Accepted 30 August 2021