Walking does fuck all to weight loss. Running, maybe, but NO amount of exercise will fix a shitty diet - and we know she can't control her lust for junk food for too long. A while ago she spent a good chunk of time eating less and lost some weight, but nowhere near this. And no, she didn't need to quit the internet to do walks and starve herself. The only diet that would lead to such rapid weight loss would be Keto but we know she lacks the willpower. She is looking great and good for her, but this is 100% gastric surgery.