CoQ10 may help improve statin drug side-effects, including memory loss.
Certain forms of choline may be help improve short-term memory and attention in older adults, or improve cognition in people with mild to moderate Alzheimer's disease, while other forms of choline have not been found to have a benefit.
In girls deficient in iron, iron supplementation may improve learning and memory.
Be aware that some proprietary formulas that contain some of these ingredients, such as Procera AVH, may promise more of a benefit than clinical evidence suggests. The FDA has warned that many supplements promoted to treat Alzheimer's disease and dementia are marketed with unproven claims and are "selling false hope." The FDA has also advised consumers to avoid supplements promoted to prevent or treat traumatic brain injuries. Vinpocetine, and ingredient in memory supplements such as Procera AVH and Alpha Brain, may cause fetal harm or miscarriage, and should not be taken by women who are pregnant or who could become pregnant. It can also inhibit blood platelets from forming clots and could dangerously interact with other blood- thinning supplements like garlic, ginkgo and high dose vitamin E, and drugs such as aspirin, clopidogrel (Plavix), ticlopidine (Ticlid), or pentoxifylline (Trental) and Coumadin.