Fermentation is behind a lot of the food you eat Enlarge this image toggle caption Yulia Naumenko/Yulia Naumenko | Getty Images Yulia Naumenko/Yulia Naumenko | Getty Images What did you have for breakfast today? Sponsor Message Those lactic-acid-producing microbes use enzymes to process the simple sugars found in carbs and starches, and turn them into energy. "In the Venn diagram …