My husband does this thing called intermittent fasting. He has a lot of body issues and has had eating disorders before. We both gained weight after getting Covid and now he will sometimes go 2 - 3 days at a time without eating. When he does, it is only rice and peas. He claims I'm being not a supportive partner around this and the "study I'm talking about when I tell him that's unhealthy was disproven in the 80s." I don't know what study he means but I'm worried. Is this actually healthy and I need to back off or am I right to be worried?