Has anyone tried this

I started taking it about a month ago and I’m down 10lbs with changing nothing else in my daily routine. I was recommended it by someone else so I started taking it and so far it’s helped. What is everyone taking that’s helped them lose weight ( my Obgyn wants me to lose another 20lbs to see if it helps regulate my period since my cycle can be anywhere from 48-68 days sometimes longer ) we have been trying for a year now for baby #2 with no luck which is one reason they want me to lose another little more weight.