A note before we start. This episode discusses calorie counting and food restriction.

So if this doesn't feel right for you, please skip to the next episode.

Your line in bed, stomach rumbling. Nope, can't take this anymore.

You rush to the kitchen and scramble through the cupboards, checking the backs of each packet

and cereal bar. Surely I can eat something else today. And there it is, the glorious 35 calorie

cracker you need it. You save every bite because tonight you've reached your limit.

2,100 calories. Tick. Another day of calorie counting down.

Sigh.

While counting calories might seem to make sense, you may be surprised by the latest science.

This is Zoe Science and Nutrition. I'm Jonathan Wolf and today on the show,

we find out whether calorie counting is good for your waistline or a waist of time.

This episode is part of a limited series to celebrate the launch of the Big IF study,

the world's biggest clinical study to discover how intermittent fasting really affects us.

By inviting our amazing community of citizen scientists to take part in this experiment,

we hope to understand whether intermittent fasting really can improve how we feel.

From our hunger levels to our mood and energy.

To take part for free and discover of intermittent fasting can work for you.

Simply go to joinzoe.com slash the Big IF. That's THE, B-I-G-I-F or by the link in the show notes.

The countdown is on. One day until you can join.

We've brought top nutritional scientists Sarah Berry in on this one because she gets food.

She's spent more than 20 years figuring out how food interacts with our bodies.

I've done lots of work around the air by accessibility, which is looking at how much

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