Some people are oddly invested in Chantal being 500lbs. They are probably 300lbs. Her TDEE is like 4.5K calories and with the coke and other drugs she's probably only been eating about 2.5K per day. In a month that's going to be almost 25 lbs. Good for her, she'll be a IG model in no time. I look forward to railing a line off her toned buttocks in Jamaica this fall.
Chantal's lugging around 334 pounds on a five-foot frame. When she's walking up the stairs, she's essentially deadlifting 334 pounds the entire way to her seat, her bed, wherever she's going. This means that she burns a
shit ton of calories doing what to us would be minimal activity. Even just laying there on the bed, reverse starfish, flinging her arms around while Nader pounds her to oblivion (sry for mental image), is exercise, because for a normal person it'd be like waving around two 15 lb dumbbells while supine.
Then add in how abusing uppers affects her NEAT aka non-exercise activity thermogenesis, or the energy expended in movement that isn't exercising. The drugs are gonna speed up her heart rate, and she's probably fidgeting, cleaning, pacing around the room, etc, a lot more than she used to.
So yeah. If she cut her calories to like 2.5k every day, that + the increase in activity could lead to rapid weight loss. I'm not saying that there isn't something medically concerning going on - she definitely needs to go to a doctor and I'm surprised she hasn't had a medical scare to the ER yet.
She's gonna take the wrong lesson from this. Rather than saying to herself, "Wow, look how much these minor lifestyle differences - all within my realm of control - can give me huge results!" she'll see "WEIGHTLOSS. IMPOSSIBLE. WITHOUT. NADER." It's another reason she's so desperate to hold onto him; she knows she can't do this without him forcing her to be active, and can't do this without his drugs.