You're in the restaurant and you've been waiting too long for your food.

You're beginning to feel those hunger packs.

The anger is bubbling.

The next person annoys you and even the most trivial way is about to get it.

Don't worry, we've all been hungry.

But if missing just one meal gets your blood boiling, surely skipping several will have

you flipping tables, right?

Maybe not.

The fasting for long periods of the day actually make you happier and more energetic.

This is Zoe Science and Nutrition.

I'm Jonathan Wolf.

Today on the show, we find out how food and fasting affects our energy and mood.

My guest today is top nutritional scientist Sarah Berry.

She spent a lot of her time studying how different people respond to food.

From our Zoe predict studies, we've been able to look at the relationship between not

just the food that we eat, but also how we eat.

So things like fasting and our energy, our alertness and our mood.

We've been able to do this at a scale that's just never been done before, which is really exciting.

She knows a thing or two about this topic then.

Before we get into fasting specifics, let's start by finding out how food impacts our

energy and mood.

So we know that when you consume food, you have lots and lots of changes that occur in

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