A Comprehensive Review of Clinical Studies on the Therapeutic Efficacy of Ginger: Applications, Mechanisms and Future Directions

Ginger (Zingiber officinale) has long been used in traditional medicine for its therapeutic properties, and modern clinical research supports its broad health benefits. This review examines the current clinical evidence regarding ginger’s efficacy in treating various health conditions, its mechanisms of action, and its safety profile. The review synthesizes findings from randomized controlled trials (RCTs), meta-analyses, and observational studies, focusing on ginger’s role in managing nausea (especially in pregnancy and chemotherapy), pain (in osteoarthritis and muscle soreness), inflammation (in conditions like rheumatoid arthritis), metabolic disorders (such as type 2 diabetes and obesity), and chronic diseases (including cardiovascular diseases and cancer). Ginger’s active compounds—gingerols, shogaols, and zingerone—have demonstrated significant anti-inflammatory, antioxidant, antiemetic, and analgesic effects, contributing to its therapeutic properties. Clinical evidence suggests ginger may improve blood glucose control, reduce blood pressure, and assist in weight management. Despite promising results, challenges persist, including variations in study designs, dosages, and preparation methods. The review identifies key limitations, such as small sample sizes, inconsistent dosages, and insufficient exploration of ginger’s effects on vulnerable populations. It also underscores the need for standardized protocols and large-scale, long-term studies to confirm ginger’s clinical applications. Further research should focus on its efficacy in chronic conditions, potential interactions with other medications, and long-term safety. Addressing these gaps could establish ginger as a valuable therapeutic tool in clinical practice.