Let's be real. Snacking is life. That little bite between meals often feels necessary, whether it's battling the 3 PM slump or staving off "hanger." But if you're trying to drop a few pounds, you've probably had that nagging thought: Is this little snack actually working against me? The truth is, your snacking routine might be the secret reason the scale isn't moving. And it all comes down to a tiny, powerful hormone called insulin. Let's break down the friendly science.