One-third of the Alzheimer's patients taking ginkgo improved in memory tasks, such as remembering dates. Half the group, although memory did not improve, experienced no increased memory loss, and the researchers noted that ginkgo may be the equivalent of a six-month delay in Alzheimer's progression. Vitamin E , already well-known for its cardiovascular effects, also may be a dementia fighter. The basis for vitamin E's benefits are probably due to its free radical-fighting properties. The aluminum and toxic metal theory has spurred treatment with chelation.
Chelation is the term used when a substance binds to another and removes it from the body.
In this case, a chelating agent that attracts aluminum is given to the patient, and the aluminum is eventually excreted. One study has shown that a chelating agent slowed the rate of cognitive decline.