About Cristina Sáez

Cristina Saez is a freelance science journalist. She coordinates the science section of the newspaper ARA and writes for several media, such as National Geographic Magazine, research centers, and scientific societies. She has been awarded for her journalistic work with some awards, such as the Boehringer Ingelheim, the Roche Foundation, Accenture, or Concha Garcia Campoy Awards, all in Medical Journalism. She is the author of "La ciencia de microbiota" (Cúpula, 2022) and "Siempre adelante", the memoirs of the Cardiologist Valentí Fuster (Cúpula, 2024). Follow Cristina on Bluesky @crisaez.bsky.social

Numerous studies have been published on the impact of factors such as nutrition in early life, mode of delivery and antibiotic intake during this critical period and for future health. With that in mind, scientists have reviewed all the scientific data available on the impact of early life nutrition on the gut microbiota and the long-lasting effects on the brain.

Following a diverse diet, rich in fruits, vegetables, whole grains and fermented foods, could play a protective role against severe forms of COVID-19. A new review presents the hypothesis highlighting the link between a less diversified microbiota, a high intake of processed foods and refined sugars and severe Covid-19 cases in Western countries.

Scientists have started to investigate the role gut microbiota might play in either protecting against COVID-19 or on the contrary in increasing vulnerability to severe symptomatic disease. Any conclusions would be highly relevant to preventing increased mortality among elderly nursing home residents.

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