Focus on nutrition: antioxidants in cancer treatment: helpful or harmful?

Nutrition is an important component of the care of dogs and cats with cancer, and dietary supplement use is common in this patient population. Antioxidants are thought to be among the most commonly used supplements. While antioxidants have potential benefits for cancer patients, they also may have detrimental effects. Therefore, information regarding the overall diet, including dietary supplements, should be collected for every cancer patient and carefully assessed, with specific attention to antioxidants, to identify areas in which the patient's medical care can be optimized.