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. That's Y-A-K-U-L-T.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Just like humans, fruit flies have to eat a balanced diet. They need sugar to survive. They need

amino acids to make eggs, to have stem cells proliferate. They need salt. They need

vitamins. Carlos Ribero, a neuroscientist at the Cham Palermo Center in Portugal.

Yeast, he says, is a crucial component of the fly diet.

I always say yeast is the steak of the fly.

Take yeast away, and the flies crave it.

They got to make those eggs.

Ribero and his team found that they could also elicit that yearning for yeast

by simply removing a few key amino acids from the flies diet, but that only worked in flies that had their gut microbiome wiped out.

Because here's the twist. When Ribeiro and his colleagues restored the standard fly gut microbiome, amino acid-deprived flies did not seek out yeast to compensate. It might seem like the gut

microbes are actually working against the fly's best interest, blocking their instincts to seek out

missing nutrients. But what actually happened, Ribeiro says, is that flies with the gut microbes

maintained good egg production despite their nutritional deficiency,

suggesting that somehow the microbes help the flies adapt to nutrient-poor conditions.

So somehow the microbes reprogram the metabolism of the fly to now cope better with an absence of amino acids in the diet,

and that might also lead then to the fly

...