Question

So I haven’t formally been diagnosed with PCOS; however my doctor has prescribed me metformin due to irregular cycles. I have been on it since June after my miscarriage. I feel like it worked for a bit up until my last cycle which was 37 days. I have came across this vitamin and was wondering if anyone else has tried it & it’s worth switching to versus the metformin. My doctor says I have “very slight insulin resistance” & that’s why she prescribed me metformin. Any thoughts on this vitamin??