Mixed
Daily consumption of 100 mg Kaempferia parviflora extract (SIRTMAX®) for 12 weeks significantly reduces body fat mass and visceral fat area in overweight adults compared to placebo.
Take 100 mg of Kaempferia parviflora extract (SIRTMAX®) once daily before breakfast for 12 weeks. This specific extract has been shown in a clinical trial to significantly reduce body fat mass and visceral fat in overweight adults, even without changing diet or exercise habits. It is not a magic bullet, but it provides a measurable advantage over placebo.
After 12 weeks, body fat, body weight, and body mass index significantly reduced in the intervention group compared with the control group. Similar findings were observed for total fat area, subcutaneous fat area, visceral fat area, and visceral subcutaneous fat ratio.
Why this rating
Randomized, double-blind, placebo-controlled trial with a reasonable sample size (n=83 analyzed) and objective measurements (DEXA/CT), though limited to a specific demographic (Korean adults).
Source
Kaempferia parviflora Extract (SIRTMAX®) reduces body fat in adults who are overweight: a 12-week randomized, double-blind, placebo-controlled trial
Hyun-Kyung Sung et al. · Frontiers in Nutrition · 2025
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