Estudo descobre que o café melhora o humor por meio de bactérias intestinais

Tanto o café com cafeína quanto o descafeinado podem melhorar o humor e o desempenho mental ao influenciar os micróbios intestinais. Os pesquisadores descobriram que os polifenóis presentes no café são responsáveis por muitos desses benefícios. As descobertas vêm de um ensaio controlado envolvendo 62 adultos saudáveis.

John Cryan, da University College Cork, liderou o estudo com colegas da Itália. Os participantes incluíram consumidores regulares de café e não consumidores. Os usuários regulares interromperam o consumo de café por duas semanas antes de retomar as versões com ou sem cafeína por três semanas. Os cientistas monitoraram as alterações por meio de amostras de sangue, saliva, urina e fezes, além de testes de humor e cognição.

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