I'm about 3 months post op gastric bypass, I'm experiencing hair loss right now like crazy! Let me tell ya there is nothing you can really do to prevent hair loss. Eat your protein take your vitamins and i do suggest getting a good shampoo for hair loss. Silver lining is you will be healthy. Hair grows back. You will expire nice dumping, you can dump on stupid things. I used to love milk but i dumped. Cauliflower makes me sick, you just have to get used to trying small bites and testing the water before you eat. Sagging skin is common, some people have it more than others. Focus on getting healthy and start to tone. Tummy tuck ad 360 lift can be considered later on. At least at Cleveland clinic i know at 1 year group they bring in plastic surgeons to talk and do consults. You got this don't worry about that stuff yet