I'm a 51 year old female, 5'3", 320 lbs. If my calculations are correct, with the surgery my weight loss will take me down to around 200 (2/3rd's of excess weight.) I will still be over weight. 135 tops the scales for average weight for my height.

I'm reading that for life, I will be eating about 1 1/2 cups of food a day. If I eat more, I'll be sick.

I thought I would loose more weight. I was hoping to at least get to 150lbs. With 1 1/2 cups of food a day, how is it that I won't be "very thin"?

Im 57, 5'1". Im not a fast loser. I've reach 81% of my excess weight to this point and plan to be a normal bmi. You can do this. I still eat a cup or less per meal, measuring everything. I stay around 1000 calories and use My Fitness Pal to track. You can do this and achieve your goal! Good Luck!