Alzheimer’s disease (AD) is a neurodegenerative disease that causes progressive dementia. There is a theory that insulin resistance in the brain plays a role in AD, and this theory is referred to as type 3 diabetes. Insulin is important for brain function, and insulin resistance may be a factor in AD. There is evidence that insulin resistance can disrupt brain function and contribute to the development of AD. Some dietary changes may help reduce the risk of AD.



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