Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp.j. That's Y-A-K-U-Lt.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

Hi, this is Your Health Quickly, a scientific American podcast series.

We bring you the latest vital health news, discoveries that affect your body and your mind.

And we break down the medical research to help you stay healthy.

I'm Tanya Lewis.

I'm Josh Fishman.

We're Scientific American's senior health editors.

On today's show, we're talking about ultra-processed foods, what they are,

whether they're bad for you, and why it's so hard to study their effects.

I don't know about you, Josh, but I'm a big fan of ice cream.

I often eat cereal for breakfast, sometimes with a bit of fruit yogurt, and I enjoy a good gin cocktail.

What do you think all these foods have in common?

Wait a minute, you're actually giving me a pop quiz?

Yes, I am.

But there are so many different right answers here.

All those foods have a lot of sugar in one form or another.

They've all been linked to poor health.

And they all have fruit as an ingredient, even the gin.

...