AI drug and dietary supplements

The only supplements that have been recommended are Calcium and Vitamin D. Initial dexa scan showed a mild osteopenia so PCP put me on this. Once I started ai therapy, oncologist recommended doubling it. But otherwise, no other recommended supplements. On my own, I take UC-II cartilage for joints, fish oil (heart and cholesterol control), vit K2 (helps Ca/D3enter bones over blood vessels and kidneys), and berberine (ai pushed me into prediabetes and increased ldl-c and this has helped control it). 2nd dexa scan still showed the osteopenia (on Anastrazole) but last one on June showed normal bone (on exemestane).

Hi, I'm taking D3 with K2, calcium and magnesium. All approved by oncolgy nurse practitioner. I also take omega 3 also approved. I started letrozole in early March.