Thank you for this explanation! I was getting concerned too. I only found out about this group last night. I am having gastric sleeve surgery tomorrow morning. Today is my one and only liquid diet day. But reading other people I was getting so worried. I am at a lower BMI, but qualified for the surgery because of a list of co-morbidities. My weight gain is hormonal. Gained more than 100 lbs after having a hysterectomy 7 years ago. I went from thin, healthy and energetic to overweight and tired with diabetes, hypertension, heart disease, high cholesterol and sleep apnea. (It’s been a rocky 7 years.) I am 5’11” and am currently 258 lbs. Highest weight was 283. My goal weight is to at least get below 200. That is about when all the health issues started. Would be wonderful to get back to 150-160 lbs, but given my hormonal issues, that is probably a stretch.