I had to switch doctors after completing my 6 months of weight management and I was worried about my BMI being too low (38-39) since I was 40-41 when I started this journey. It was this summer mind you, but I wore the heaviest jeans I owned, a cardigan sweater over my shirt (hey it's cold in the office with A/C), jewelry (again my heaviest Brighton necklace and charm bracelet), and I put my iPhone in my pocket. I also ate and drank just before I went in. It was enough to get me to 40 without gaining the weight back. My surgery is September 10. Good luck and let us know how it goes!