Decaffeinated coffee increases the availability of energy at the brain level , reducing the risk of suffering from dementia and other neurodegenerative diseases such as Alzheimer's, according to a study published in the journal Nutritional Neuroscience . Specifically, in their experiments they confirmed that by administering decaffeinated coffee for 5 months to rodents, the brain was able to metabolize glucose much more efficiently and use it as fuel for neurons. This would be especially valuable in people with type 2 diabetes, as it would help prevent the cognitive decline that often accompanies the disease.
While "normal" coffee can cause some people to increase cholesterol and blood pressure, which increases cardiovascular risk, decaffeinated coffee has no negative effect and could be used as a dietary supplement in humans, according to Giulio Maria Pasinetti, neurologist at Mount Sinai Hospital in New York (USA) and co-author of the work.
