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This ecosystem, formed by billions of microorganisms that reside in the digestive tract, is key for numerous physiological functions, such as digestion, nutrient synthesis, the immune response, and the production of serotonin.

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Author Carlos Uhart M.

Founder and director at The Beer Times™. Certified Beer Server Cicerone©, BJCP Beer Judge, and beer sommelier. Author of 'Practical Guide to Beer Tasting', 'Cooking and Mixology with Beer', and four other books on pairing and beer culture.