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The human microbiome: Scientists work to understand the potential that microbes may hold for human health

2101022DJim Steele used to be one of the skeptics. He’d be at a conference, listening to early research on the health benefits of probiotics. Steele scoffed at the small experiments. “We would literally try not to laugh in the audience, but we’d laugh pretty hard when we went out that night,” he admits.

But slowly the punch lines gave way to revelation. Steele, a professor in CALS’ Department of Food Science, conducts research on lactic acid bacteria, with a focus on Lactobacillus species. They’re important for human gut health, critical for the production of cheese and yogurts, and are the most common probiotic genus. He knew how incredibly useful they were, but still watched with a humbling disbelief as the data on the health potential of these microbes kept getting broader, deeper and more intriguing. Here’s the rest of the story.

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