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Eating More Ketones May Fight Against Alzheimer’s Disease

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Ketone-rich diets increase the SIRT3 protein that protects neurons from death during the progression of Alzheimer’s disease. But how does it work? Find out more.


Early in the development of Alzheimer’s disease, the brain becomes over excited, potentially through the loss of inhibitory, or GABAergic, interneurons that keep other neurons from signaling too much. Because interneurons require more energy compared to other neurons, they may be more susceptible to dying when they encounter the Alzheimer’s disease protein amyloid beta. Amyloid beta has been shown to damage mitochondria — the metabolic engine for cells — by interfering with SIRT3, a protein that preserves mitochondrial functions and protects neurons.

Ketones Better for Alzheimer’s Neurons

Cheng et al. genetically reduced levels of SIRT3 in mouse models of Alzheimer’s disease.

Mice with low levels of SIRT3 experienced a much higher mortality rate, more violent seizures, and increased interneuron death compared to the mice from the standard Alzheimer’s disease model and control mice. However, the mice with reduced levels of SIRT3 experienced fewer seizures and were less likely to die when they ate a diet rich in ketones, a specific type of fatty acid. The diet also increased levels of SIRT3 in the mice.

Increasing SIRT3 levels via ketone consumption may be a way to protect interneurons and delay the progression of Alzheimer’s disease.

Check out this series of videos and articles on using ketones, mct oil and coconut oil for Alzheimer’s and dementia.

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B. Berger

B. Berger

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This site was inspired by my Mom’s autoimmune dementia.

It is a place where we separate out the wheat from the chaffe, the important articles & videos from each week’s river of news. With a new post on Alzheimer’s or dementia appearing on the internet every 7 minutes, the site’s focus on the best information has been a help to many over the past 15 years. Thanks to our many subscribers for your supportive feedback.

The site is dedicated to all those preserving the dignity of the community of people living with dementia.

Peter Berger, Editor

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