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Intermittent fasting and brain health: the neuroscience

Intermittent fasting boosts BDNF, fuels the brain with ketones, and reduces neuroinflammation. Here's what the neuroscience actually shows.

FastingInPractice Editors

Most people start intermittent fasting to lose weight. What surprises them, almost every time, is what happens to their thinking. The mental clarity, the disappearance of brain fog, the ability to concentrate for hours without a crash β€” these aren't side effects of weight loss. They're direct neurological responses to fasting, and the science behind them has become one of the most active areas of nutrition research over the past two decades. Intermittent fasting measurably supports brain health through at…

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