Curcumin: Can it slow cancer growth?

    Can curcumin slow cancer growth?

    At this time, there isn't enough evidence to recommend curcumin for preventing or treating cancer, but research is ongoing.

    Curcumin is a substance found in the spice turmeric. Curcumin has long been used in Asian medicine to treat a variety of illnesses. Now some research suggests that curcumin may help prevent or treat cancer.

    Curcumin is thought to have antioxidant properties, which means it may support healing and reduce inflammation. It's being explored as a cancer treatment in part because inflammation appears to play a role in cancer.

    Laboratory and animal research suggests that curcumin may prevent cancer, slow the spread of cancer, make chemotherapy more effective and protect healthy cells from damage by radiation therapy.

    Studies of curcumin in people are still in the early stages. Clinical trials are underway to study curcumin alone or with other medicines as a way to prevent cancer in people with precancerous conditions, as a cancer treatment, and as a remedy for side effects cancer treatments can cause.

    Research is ongoing, and there isn't enough evidence to recommend curcumin at this time. Talk with your healthcare professional before using any herbal supplement, including curcumin. It's known to interfere with certain medicines, including some chemotherapy medicines.

    1. Turmeric. NatMed. https://naturalmedicines.therapeuticresearch.com. Accessed Oct. 10, 2025.
    2. Pizzorono JE, et al., eds. Naturally occurring antioxidants. In: Textbook of Natural Medicine. 5th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed Oct. 16, 2025.
    3. Cozmin M, et al. Turmeric: From spice to cure. A review of the anti-cancer, radioprotective and anti-inflammatory effects of turmeric sourced compounds. Frontiers in Nutrition. 2024; doi:10.3389/fnut.2024.1399888.
    4. Zoi V, et al. The role of curcumin in cancer treatment. Biomedicines. 2021; doi:10.3390/biomedicines9091086.

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