What you should take for memory loss depends on the cause. A vitamin deficiency, for example, has a straightforward fix, while age-related cognitive decline calls for a different strategy entirely. The most effective approach combines correcting any nutritional gaps, considering targeted supplements with clinical evidence behind them, and adopting dietary patterns that protect brain health over time. In some cases, prescription medications may also be appropriate.
Rule Out Vitamin B12 Deficiency First
Low vitamin B12 is one of the most common and treatable causes of memory problems, especially in adults over 60. Your body needs B12 to maintain the protective coating around nerve fibers, and when levels drop, cognition suffers. The standard U.S. minimum for B12 blood levels is 148 pmol/L, but recent research from UCSF found that even people averaging 414.8 pmol/L (well above that threshold) showed signs of neurological decline. This suggests the current “normal” range may be too low.
If you’re experiencing memory issues, getting your B12 tested is a reasonable first step. Older adults absorb B12 less efficiently from food, and people taking acid-reducing medications or following plant-based diets are at higher risk for deficiency. Supplementation with B12 can reverse cognitive symptoms when a deficiency is the cause, but it won’t help if your levels are already adequate. Clinicians are increasingly considering supplementation for older patients with neurological symptoms even when blood levels fall within the normal range.
Supplements With Clinical Evidence
Phosphatidylserine
Phosphatidylserine is a fat molecule concentrated in brain cell membranes, where it helps cells communicate. It’s one of the better-studied supplements for age-related memory loss. In the largest double-blind trial, 494 patients taking 300 mg per day showed improvements in memory, learning, motivation, and social engagement over three to six months. Effective doses in clinical studies range from 100 to 300 mg daily. A prescription medical food called Vayacog, which combines phosphatidylserine with omega-3 fatty acids, is available in the U.S. specifically for cognitive impairment.
Bacopa Monnieri
Bacopa is an herb used in traditional medicine that has held up reasonably well in modern trials. Its active compounds work in part by slowing the breakdown of acetylcholine, a brain chemical essential for forming new memories. In a randomized, double-blind trial, healthy elderly volunteers taking 300 to 600 mg of a standardized extract daily showed improved attention and memory. Look for extracts standardized for bacoside content, which should be listed on the label. Effects typically take several weeks of consistent use to appear.
Ginkgo Biloba
Ginkgo increases blood flow to the brain and has antioxidant properties. A 30-day randomized, double-blind trial with 61 participants found significant improvements in processing speed, working memory, and executive function compared to placebo. That’s a relatively fast timeline for a supplement, though longer-term studies have produced mixed results for preventing dementia. Ginkgo can interact with blood thinners, so it’s worth checking with a pharmacist if you take any medications.
Huperzine A
Huperzine A is derived from a type of club moss and works similarly to prescription Alzheimer’s drugs. It temporarily blocks the enzyme that breaks down acetylcholine, keeping more of this memory-related chemical available in the brain. It’s a more selective blocker than some synthetic alternatives, meaning it targets the specific enzyme form most relevant to cognition. Because it acts on the same pathway as prescription cholinesterase inhibitors, you should not combine it with those medications.
What to Be Cautious About
Vitamin E is frequently marketed for brain health, but the evidence raises serious concerns at high doses. The recommended daily amount is just 15 milligrams. People with heart disease or a history of heart attack or stroke who take high doses face a higher risk of death. Some research also suggests high-dose vitamin E may increase the risk of prostate cancer. If you’re considering vitamin E specifically for memory, the risk-benefit balance is not favorable for most people.
In general, more is not better with supplements. Stacking multiple products that affect the same brain pathways can cause side effects or interactions. Start with one or two evidence-backed options, give them adequate time to work (typically 4 to 12 weeks), and track whether you notice any changes.
The MIND Diet for Long-Term Protection
Diet has a measurable impact on cognitive decline over time, and the MIND diet was designed specifically to protect brain health. Developed by researchers at Rush University, it combines elements of the Mediterranean and DASH diets with an emphasis on foods linked to slower cognitive aging. The core weekly targets are specific: six or more servings of leafy green vegetables, five or more servings of nuts, and at least two servings of berries per week.
The diet also emphasizes whole grains, fish, poultry, olive oil, and beans while limiting red meat, butter, cheese, pastries, and fried food. What makes it practical is that partial adherence still shows benefit. You don’t need to follow it perfectly. People who follow it moderately still show slower rates of cognitive decline compared to those eating a typical Western diet. For someone searching for what to “take” for memory loss, this dietary pattern may ultimately matter more than any single pill.
Prescription Medications for Diagnosed Conditions
If memory loss has progressed to a clinical diagnosis of mild cognitive impairment or Alzheimer’s disease, prescription options exist. The traditional medications work by boosting acetylcholine levels in the brain, the same mechanism as huperzine A but with more precise dosing and medical oversight. These drugs don’t reverse Alzheimer’s, but they can temporarily stabilize symptoms for months to years.
A newer class of treatments targets the amyloid plaques that accumulate in the brains of Alzheimer’s patients. Donanemab, approved by the FDA in 2024, is given as an intravenous infusion every four weeks and slowed clinical decline by 22.3% compared to placebo in trials. It’s approved only for people in the mild cognitive impairment or mild dementia stage. These newer drugs carry a risk of brain swelling or small brain bleeds (a side effect doctors monitor with regular brain scans), and genetic testing is recommended before starting treatment because certain gene variants increase that risk substantially.
These medications require a formal diagnosis, typically involving cognitive testing. The Montreal Cognitive Assessment, one of the most widely used screening tools, scores out of 30 points, with 26 or above considered normal. Scores below that threshold prompt further evaluation. If you’re concerned enough to be searching for memory loss solutions, asking your doctor to run this quick screening test is a concrete next step.