Hitting your 40s can feel like your body is suddenly playing by a whole new set of rules. What used to work — cutting calories, skipping meals, doing more cardio — now leaves you tired, stressed, and stuck.

Intermittent fasting is everywhere. It’s promoted as a “miracle” for weight loss, longevity, and better health. But when it comes to women—especially those in their 30s, 40s, and 50s—fasting might be doing more harm than good.

Are you approaching or into perimenopause and noting that your body isn’t responding to your regular exercise? Perhaps you hit a plateau in your physical goals or you’re holding onto extra weight around the middle. Whatever your frustration, it’s important to recognize that what may have worked in your 20s is not doing you any favours as your hormones shift.