08/05/2026
I used to recommend intermittent fasting to almost everyone trying to lose weight... but I’ve changed my mind. Here’s why:
First, let’s define what intermittent fasting actually is. It’s simply a period of time where you’re not eating any calories. That could be overnight, or it could be several days.
The most popular version is the 16:8 method, where you fast for 16 hours and eat all your meals within an 8-hour window.
The idea behind fasting for weight loss is pretty simple: you often end up eating fewer calories, your body eventually uses stored fat for fuel once glucose stores are depleted, and with longer fasts, you may also get a process called autophagy.
And to be fair... intermittent fasting can absolutely work.
In fact, I used to recommend it a lot because I had many patients who would benefit from it and who would lose weight and see improvements in blood sugar markers and insulin resistance.
And in my own experience, I gained a lot of benefits from it.
But over the last few years, looking at more research and looking at my clinical experience, I’ve changed my approach, especially for women over 35.
What I’ve noticed is that skipping breakfast often leads to lower energy, brain fog, and binge eating later in the day.
So now, instead of recommending a 16:8 fasting window, I usually recommend eating breakfast by about 10 a.m., making sure it includes at least 30 grams of protein plus some healthy carbohydrates, and then aiming for at least a 12-hour overnight fast by simply avoiding late-night snacking.
Why? Because eating earlier in the day supports energy and focus, helps reduce cravings later on, and your body actually burns a little more energy digesting food earlier in the day compared to late at night.
So intermittent fasting isn’t ‘bad’- it’s just not my first choice anymore for women over 35, at least not in the typical 16:8 protocol.