Both BM and DH are large people. They both had weight loss surgery in the last years of their marriage. DH has been able to maintain about 140 lbs of weight lost since then (over a decade), but BM seems to have gained it all back. BM was always overweight, even in childhood. DH didn't gain weight until after high school. SS has always been told he takes after his mother's family and a year ago, after sports had been out of session for a bit, he had gained quite a bit of weight. Last summer (at age 15), he decided he wanted to lose weight. He cut out soda and some junk food and fairly quickly lost about 8 pounds. He was also gaining in height, so it looked like he lost more. MIL could not stop gushing about how good he looks and it's a topic of conversation at every family gathering. We haven't seen him in about a month, though, and I was honestly taken aback by his appearance this weekend. He was wearing baggy clothes and when he bent over to pick something up, I could see every rib up his back and every vertebrae. We all had dinner this evening. It was a hello fresh meal designed for two people. DH added a few extra potatoes, but not too much and divided the meal among four plates with a smaller fifth portion for our toddler. This SS ate less than half of his meal saying, "dad, you always give me the most food." And "I'm so full" over and over again. This is the same kid who used to brag that he could eat two full adult sized meals at one sitting. I experienced disordered eating including restricting meals and body dysmorphia as a teen, so I'm familiar with how it plays out, and am a bit concerned....but DH's family is all obsessed with weight and many of them have eating disorders, so I know I'm the only one who would think SS's new approach to eating might be problematic. DH took all the kids out for lunch and I asked if SS ate anything and he said yes and told me what he ate...he ate double what our toddler ate...not even close to an adult portion and that was probably the only meal he ate other than dinner, where he ate a smaller portion saying how full he was.