Research has shown promising results in animal models for potentially reversing the effects of Alzheimer’s disease and other dementias. Studies have indicated that mice with Alzheimer's treated with NMN had reduced beta-amyloid protein production, which is associated with Alzheimer's, improved cognitive function, and a reduction of overall inflammation. However, it's important to note that these studies have been primarily conducted on animal models. Therefore, while the initial research is promising, it's not yet clear whether NMN can help with Alzheimer's and dementia in humans.