Dear Dr. Roach: I am a 68-year-old male who weighs 130 pounds and is 5 feet, 7 inches tall. I am in good shape and work out regularly. I had my prostate removed in 2023 after about six years of active surveillance, and I just finished radiation treatment.

I've taken vitamins for as long as I can remember. I take Centrum Silver multivitamins, fish oil, calcium, and vitamin D for osteoporosis. When doing some research, I read that selenium and vitamin E are not good to take if you have prostate cancer, and they are included in Centrum Silver. The fish oil had conflicting information, with some saying it was good and others saying it wasn't good to take if you have prostate cancer.

Should I continue taking these vitamins, or should I stop? Could these have made my cancer worse? If I stop,

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