Professor Tim Spector

12 to 14-hour...

overnight fast trying to restrict your eating time to 10 hours really has been shown to have metabolic advantages for you and improves your gut lining so it's less likely to to leak and cause inflammation and allows the cleaning team and your microbes to come out and clean up your gut the number of studies now showing that it does have these metabolic advantages but

I'm not pushing it so hard these days because we did do another massive citizen science study with Zoe with over 100,000 people doing this.

We asked them to do 14-hour time-restricted eating.

A third gave up.

They said, I can't do this.

I feel too hungry all the time.

I need to be snacking something like almonds.

A third loved it, and they're still doing it two years later.

And a third was sort of, yeah, I'll do this sometimes.

I feel better on it.

So I think there is a personalized element to it.

But if you can do it, it is really important.

And I would urge even the people that find it tough, if you can avoid that unhealthy late-night snack, that can have a really big impact on your gut and your brain.

No, I think when we discussed it, I was pretty anti it, you know.

But reading about the brain, how important metabolism of the brain, brain energy is,

and doing more research has slightly changed my mind because what we discovered is how amazing it is for childhood epilepsy.

It is still used as the main treatment for drug-resistant childhood epilepsy.

The keto diet.

So for people who don't know, what we're talking about here is you're changing the –