Evidence Level
Panax ginseng is a well-researched adaptogen with over 500 human studies. Geng et al. (2010) conducted a systematic review of nine randomized controlled trials (RCTs) and found consistent cognitive benefits associated with its use. Seida et al. (2011) reviewed 65 studies on immune function and reported moderate evidence supporting the role of Panax ginseng in preventing colds and flu. For erectile dysfunction, Jang et al. (2008) published a meta-analysis of seven RCTs, demonstrating significant improvement with red ginseng supplementation.
Recent research highlights additional benefits. Yang et al. (2023) conducted a systematic review and meta-analysis of 41 preclinical studies, concluding that Panax ginseng significantly reduces biomarkers associated with nonalcoholic fatty liver disease (NAFLD). Hernández-García et al. (2019) performed a meta-analysis of 18 clinical trials involving 1,365 participants and found that Panax ginseng supplementation significantly reduced total cholesterol (-2.30 mg/dL/g/day) and LDL-cholesterol (-1.47 mg/dL/g/day). Singh et al. (2025) analyzed 60 studies and concluded that Panax ginseng exhibits significant anti-cancer properties due to its bioactive compounds, such as ginsenosides.
However, not all findings are positive. Morgans et al. (2024) reviewed six RCTs involving 180 participants and found no significant reduction in exercise-induced muscle damage markers with Panax ginseng supplementation. Additionally, de Oliveira Zanuso et al. (2022) noted that while Panax ginseng may help manage aging-related disorders through anti-inflammatory, antioxidant, and neuroprotective effects, further research is needed to confirm these benefits.
The Korean red ginseng form, which involves steaming the root, has a modified ginsenoside profile with enhanced bioactive compounds like Rg3 and compound K, making it generally considered more potent than other forms.