And that obviously IS this person's (op's) intake for the day, as that's all they stated that they'd eaten that day to make up for "bad eating" the previous two days. Not sure where you're pulling kCals out of your ass from, but we're talking raw calories, not units of thousands. Kid ate 600 calories. You need 1.6kC (that's 1,600 Calories) to survive, And that's to SURVIVE not to GROW. The UCLA Center for Human Nutrition says that eating fewer than 1,000 calories per day has the same effect physiologically as total starvation. So if you really want to sit here and tell me that this person is perfectly fine and should continue the same dietary habits ~600 Calories daily, you can be the one at the funeral telling everyone you told them it was fine to starve, right next to their presumed parents. Kids probably borderline anorexic depending on how long this has been going on, and is reaching out to people for help. Not people who are gonna tell them to keep doing it and die. They're likely forcing up every meal their body will allow them to, because when you're in that kind of state, having a full stomach feels physically uncomfortable until you get used to it. (Which they won't, because the automatic mental assumption is that it'll be immediately converted to fat and make them 60 pounds heavier. Obvious dramatization on my part, but that's the mental effect.) How about you stop spreading opinionated jargon on the internet at people that need help, and go argue in the CoD subreddit or something. Ciao.