I would start with 1mg. Nothing wrong with starting with 2mg, it’ll just punch that much harder. Personally I started with .5mg and that was plenty of an appetite suppressant. You will have to titrate Reta up more than other comparable GLP1s, so starting lower is better so you don’t jump your tolerance too quick. I am currently running 5mg/week, I up my dosage solely based off feel. You can also play with injection frequency, personally I found doing 1 big injection a week is better than say me doing 5 1mg injections a week Monday-Friday