Key points from article :
Food for the Brain, a British charity, has introduced an at-home blood test called the Glutathione Index to help predict the risk of dementia. This simple pin-prick test measures levels of glutathione, a powerful antioxidant in brain cells that protects against oxidative stress, a key factor in aging and cognitive decline. Patrick Holford, who chairs the Alzheimer’s Prevention Project at the charity, describes glutathione as the "master antioxidant," crucial for keeping the brain and body youthful.
The test assesses the balance between active, "fully loaded" glutathione and its oxidized, "spent" form. A poor ratio indicates faster brain aging and a higher risk of conditions like dementia, diabetes, liver disease, and multiple sclerosis. Dr. Konrad Kowalski, one of the test developers, notes that while optimal glutathione levels are still being studied, an index of 500 suggests a healthy brain, whereas levels below 200 may require dietary and antioxidant interventions.
By offering this home test, Food for the Brain aims to give people a way to monitor how diet and lifestyle changes impact brain health. The charity is currently recruiting volunteers for a £69 trial to track improvements in brain aging over time with personalized dietary adjustments and supplements.
