Hello @anjalima. For women who have hormone receptor-positive breast cancers, they should generally try to avoid long duration of supplements that can interact.

I found this Mayo Clinic Minute that may be helpful as you start to explore this topic.
- Mayo Clinic Minute: Are supplements safe for cancer patients?: https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-minute-are-supplements-safe-for-cancer-patients/

Have you asked your doctor for his/her specific recommendation given your diagnosis?