Down 16 pounds on opti - normal?

I've been on opti since May 16th with surgery this Monday (!!!). I've had a hard time getting in all 4 optis, most days I just get in 3, some days only 2. I weighed myself yesterday and was down 16 pounds - this seems like a lot to me in such a short period of time - is this normal for the opti part ?

Very normal your eating like 500-900 calories

I lost 15 pounds in the first 2 weeks of Opti and nothing on the 3rd 

Sets you up nicely for surgery

Once again very normal. The first month I lost 37 lbs 2nd month I lost 25 lbs

Normal. I lost 18.5 on Opti 

I've started opti the same time as you and  down 14.5!

Normal!  I did 3 weeks of opti. Lost 23lbs while on it. 

Thanks all! I was worried that I was losing too fast and that they would tell me I did something wrong and couldn't have surgery lol

I've been on Opti since May 13th, surgery this Friday. I lost 10lbs in the first week on Opti! It has slowed since then though so likely about 15lbs overall by the time I weigh in tomorrow night.

Everyone loses differently, that being said, like all new diets, you'll lose a lot of water weight the first week or so.  For those who lose a lot while on Opti, you might find it slow losing after surgery.  It's just your body catching up with the changes.  But stick to the plan both before and after and you'll be fine.

Cathy