Supplements advice

Hello,

I hope anyone have any advice on supplements. I historically have taken a joint supplement and hair supplement. I asked my BCN if they were ok and she said that the only thing to avoid is grapefruit if on tamoxifen (I’m not). However I know that there are question marks around sage, collagen, turmeric, … Does anyone know if there is a guide we can use? Or does anyone have any advice? (My cancer was hormone positive).

thanks!