I've been a registered dietitian for eight years, and one question keeps coming up in my sessions: is intermittent fasting actually sustainable for weight loss, or is it just another diet trend that fades? I've seen clients lose 10 pounds in a month on a 16:8 schedule, only to regain it when life gets chaotic. But I've also worked with people who've maintained their results for over a year by pairing it with mindful eating. So, is the key not the fasting itself but the structure it provides?