Interesting new way to look at fasting
By David Nield
As effective as fasting can be for weight loss, it's often thought that depriving the body of sustenance might have a negative impact on brainpower.But is an impact on cognitive performance really an
inevitable part of the fasting experience?
According to a huge, recently published review, it's not
always the case.
Based on an analysis of 63 scientific articles representing
71 independent studies, and covering a total of 3,484 participants, the review
found that there was no meaningful difference in cognitive performance between
people who were fasting and people who were having
regular meals.
It's a comprehensive counter to the idea that moderate,
short-term restrictions on eating will deplete mental reserves in healthy
people, an idea found everywhere from snack adverts ("you're
not you when you're hungry") to the mantra that breakfast is the most
important meal of the day.
The researchers behind the analysis – psychologist Christoph
Bamberg from Paris Lodron University in Austria, and cognitive neuroscientist
David Moreau from the University of Auckland in New Zealand – don't want people
who could benefit from fasting to be put off by worrying that it'll lead to
foggy thinking.
"For most healthy adults, the findings offer
reassurance," Moreau
explained in a commentary for The Conversation.
"You can explore intermittent fasting or other fasting
protocols without worrying that your mental sharpness will vanish."

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