Is there evidence to suggest that intermittent fasting can improve cognitive function and brain health?
Yes, there is evidence to suggest that intermittent fasting can improve cognitive function and brain health.
Long answer
Several studies have reported positive effects of intermittent fasting on cognitive function and brain health. Intermittent fasting involves cycling between periods of fasting and non-fasting, such as alternate-day fasting, time-restricted feeding, or periodic prolonged fasting.
Animal studies have shown that intermittent fasting can promote neuroplasticity, increase the production of brain-derived neurotrophic factor (BDNF) – a protein essential for learning and memory – and stimulate the growth of new neurons in various areas of the brain. These effects may contribute to improved cognitive function, enhanced memory formation, and protection against age-related cognitive decline.
Evidence from human studies is also promising. Some research suggests that intermittent fasting may enhance executive functions such as attention, focus, and decision-making abilities. It has been found to improve working memory performance in both animal models and humans. Additionally, intermittent fasting might have beneficial effects on markers of brain health such as reducing inflammation and oxidative stress.
A study conducted on healthy older adults revealed that practicing intermittent fasting for 12 weeks led to improvements in verbal memory and attention compared to a control group. Another study showed that time-restricted feeding improved cognitive flexibility and reduced impulsivity in overweight individuals.
However, it’s worth noting that more research is needed to fully understand the long-term effects of intermittent fasting on cognitive function and brain health in different populations. Moreover, individual responses may vary based on factors like age, sex, diet composition during non-fasting periods, and other lifestyle factors. Therefore, consulting with a healthcare professional before starting any dietary regimen is recommended.