Does Castor Oil Help with Cataracts? By rjoachim | July 20, 2022 Castor oil is thought to improve the lymphatic function, blood flow, and thymus gland health. Some think that this oil promotes the production of lymphocytes in the body which helps in fighting the toxins and other bacteria present in the body. Thanks to its ricinoleic acid content and immunity-boosting effects, it is often used as an effective purgative, thereby also preventing inflammation. However, more research is needed to confirm these presumed benefits. 15 Amazing Benefits of Castor Oil Posted in Natural & Holistic