Cancer remains a significant global health concern, and natural compounds found in
fruits and vegetables have shown potential anti-cancer effects. Grapefruit (Citrus paradisi) has
gained attention due to its rich phytochemical composition and biological activities, including
anti-cancer properties. This narrative review analyzes the literature on grapefruit-based drug
development and its potential as an adjunctive or alternative therapeutic strategy for cancer
treatment. Grapefruit-derived compounds have been extensively studied for their anti-cancer
effects, with preclinical studies showing promising outcomes in inhibiting cancer cell growth
and proliferation. Compounds made from grapefruit also have anti-cancer effects. They do this
in a number of ways, such as by affecting the cell cycle, apoptosis, angiogenesis, metastasis,
and key signalling pathways. Petrified grapefruit compounds have potential synergistic effects
with conventional chemotherapy drugs, enhancing cytotoxic effects while reducing adverse
side effects. They have shown promising results in overcoming drug resistance, a major obstacle in cancer treatment. However, challenges such as bioavailability, drug interactions, and
variability in compound composition remain. Overall, grapefruit-derived compounds possess
significant anti-cancer properties and warrant further investigation for clinical application.