African Potato / Inkomfe

Hypoxis hemerocallidea — the African Potato — is one of the most used medicinal plants in South Africa and is deeply embedded in Zulu and Nguni traditional healing. Its corm (underground bulb) is rich in beta-sitosterol and beta-sitosterol glucoside, phytosterols that modulate the immune system, inhibit 5-alpha reductase (relevant to prostate cancer), and show cytotoxic activity against several cancer cell lines. The plant is widely used by traditional healers (izinyanga and izangoma) for cancer and HIV. Importantly, beta-sitosterol from African Potato and saw palmetto operate through similar mechanisms — making African Potato of particular interest in prostate cancer. However, the plant also contains hypoxoside, which some research indicates may inhibit antiretroviral drug absorption, so caution is needed in HIV/cancer co-management.