Professor Tim Spector

is not only making them sick, making their gut microbes sick, but it's actually making them overeat.

And studies show it makes you overeat by about 25%, which really adds up every day of your life.

I mean, there are some, but most people who think they are are not.

And that's because generally when you eat a sandwich in the US or the UK, you're getting crap bread, a terrible filling...

All kinds of other additives and chemicals which are probably disagreeing with you.

So when you give up eating sandwiches, you might feel better.

I think it's a great example of...

We love to have a simple solution.

So gluten came in, said, right, everyone can think about gluten.

Let's just get rid of that and all our problems are solved.

rather than thinking, what are all the other things in a cheap bread sandwich that you might be reacting to?

It also could be the emulsifier that is gluing that bread together or is in the mayonnaise that you're having.

It could be some of these colorants that are making the bread white or making that sauce bright yellow that you might be intolerant of.

The more things that these manufacturers add to these foods, the more likely there is one that is disagreeing with you and your favourite sandwich suddenly becomes your worst enemy because they're just created by brilliant scientists to all they care about is you find it irresistible and keep eating it.

If you eat the healthy stuff, you don't have these problems.

I love almonds.

They're good for you.

And lots of studies showing they're good for your cognition, even some mild effects on other aspects of brain health and mood.

These are good for gut health.

They've got all kinds of really good fats in them.