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IMAGE: A new study from the University of Illinois and The Ohio State University shows label claims on commercial kefir products overstate bacterial contents.
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Credit: L. Brian Stauffer, University of Illinois
URBANA, Ill. - Gut health is having a moment, with sales of fermented foods such as kefir, kombucha, and kimchi steadily on the rise. The benefits of "good bacteria" in fermented foods and supplements go well beyond the gut, moderating immune responses, heart health, weight, and even mood. But do products hold up to the claims on their labels?
A new study from the University of Illinois and The Ohio State University examined bacterial content of five brands of kefir, a fermented dairy beverage often likened to drinkable yogurt. The research showed the majority of products overstated bacterial density and contained species not included on the label.