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 Yachtold, visit yawcult.co.com.

That's Y-A-K-U-L-T dot CO.J-P. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American 60-second science. I'm Cynthia Graber. Got a minute?

Everybody eats, and consumers increasingly try to consider the environmental effects of their food choices.

For example, if you want to eat meat, how do your choices compare?

That's what a group of researchers set out to discover,

and they found that raising one animal is dramatically more environmentally draining than all the others, cows.

The researchers in the proceedings of the National Academy of Sciences.

The scientists noted the challenge in accessing data and creating metrics that can be compared

across livestock and to potato, wheat, and rice production.

They settled on national data from the U.S. departments of agriculture, the interior, and energy.

The team calculated the production costs by assessing land area, water needs, and fertilizer.

They also analyzed greenhouse gas emissions.

Producing pork, poultry, eggs, and dairy were between two and six times less efficient than growing potatoes, wheat, and rice.

And in the current agricultural system, beef uses 28 times more land, 11 times more water, and 6 times more fertilizer than the average of the other categories of livestock.

Cattle ranching also creates five times more greenhouse gas emissions.

The researchers hope this data will help consumers make informed choices,

and policymakers create systems that can reduce the environmental costs of what we eat.

Thanks for the minute. For Scientific American 60 Second Science, I'm Cynthia Graver.

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