Is this real, or are they selling hope?
Somewhere around 2am, everyone caring for someone with dementia types the same thing into a search bar: is there anything that helps? What comes back is a wall of pills, drinks, helmets, and "protocols." Here's how to tell the honest from the hopeful, without feeling foolish for looking.
No supplement, drink, or device has been proven to prevent, treat, or cure dementia, and nothing you can buy without a prescription will. (A few prescription drugs can modestly slow early Alzheimer's for some people, worth asking the doctor about, but they aren't cures, aren't for every type, and aren't anything sold online.) That's not despair. It means the things that genuinely help aren't the things being sold to you, and those are further down this page, mostly free.
You don't need to become an expert on every fad. You need one sorting rule that still works on the next product you've never heard of. Here it is, in three buckets.
🟥 Steer away
A real risk here, or a regulator has already stepped in.
- "Memory" supplements like Prevagen. A federal court ordered its maker (December 2024) to stop claiming it improves memory or is "clinically proven"; the company is appealing, so treat the memory claim as unproven, and note the company's own study found no benefit. If the best-selling memory pill can't back the promise, be gentle with yourself for having hoped it would.
- Methylene blue (the blue-dye trend). Not proven for dementia, and genuinely dangerous: taken with common antidepressants (SSRIs and others) it can trigger serotonin syndrome, a life-threatening reaction. Not worth the risk.
- Four-figure "reversal" or "ReCODE"-style protocols. The research behind the best-known one is an early, not-yet-peer-reviewed study, nowhere near proof of "reversal." No family should spend thousands on it.
- Any restrictive diet forced on someone who's losing weight or refusing food. In dementia, keeping weight on and meals pleasant beats any "brain diet." Don't take food they'll eat away from them for a theory.
🟨 Being studied, not proven
Interesting, maybe harmless, but don't pay big or pin your hopes on it.
These show up in hopeful headlines. The honest status is the same for all of them: early, short, or mixed studies; no proof it prevents or treats dementia. If it's cheap and safe and you want to try it, that's your call. Just don't let it replace the doctor or the green list below, and don't spend money you need elsewhere.
- Lion's mane · red-light / "photobiomodulation" helmets · hyperbaric oxygen (HBOT) · hydrogen water
- Coconut / MCT oil · curcumin (turmeric) · ginkgo biloba · omega-3 / fish oil · high-dose B vitamins
A few of these interact with medicines (see the caution box). "Being studied" is not "shown to work." It's fine to wait for the answer instead of paying for it now.
🟩 Worth your energy
Cheap or free, low-harm, and actually backed by evidence.
None of these are a cure, and none are a guarantee, but they're the steps experts agree genuinely lower risk (for vascular dementia especially, they can buy longer steady stretches), and several also make daily life better right now. Across a whole population, researchers estimate that addressing about 14 everyday factors could delay or prevent up to ~45% of dementia (a population estimate, not a personal promise), but it means these are the real levers:
- Treat hearing loss. The single best-evidenced one. In a large trial, hearing aids didn't change much for the average participant, but among older adults already at higher risk, those given hearing aids showed about half as much cognitive decline. That's a population finding about lowering risk, not a promise for any one person, and hearing aids earn their keep anyway by bringing them back into the conversation.
- Treat vision loss. An updated pair of glasses or a cataract fixed keeps them oriented and engaged.
- A daily walk / physical movement. The most consistently protective habit there is, and it burns off restlessness too.
- Blood pressure and cholesterol under control. Especially for vascular dementia, this is brain care as much as heart care. It's the closest thing to "prevention" that exists.
- Stay socially connected. Visits, a day program, a phone call rhythm. Isolation is a risk factor; company is a protection.
- Don't smoke, keep alcohol light, and treat diabetes and depression.
- A Mediterranean-style plate. Vegetables, fish, olive oil, whole grains. Reasonable and heart-healthy; think "worth doing," not "miracle."
The unglamorous truth: the real "recovery story" is blood pressure controlled, sleep fixed, hearing working, the next stroke prevented. Families who do that quietly get some of the longest, steadiest stretches of anyone.
The 10-second bias check
When you can't tell, ask one question: who profits if I believe this? That single test sorts most of the internet. Then scan for the tells. A pitch usually wears several:
- "Clinically proven" with no named study you could actually look up.
- A countdown timer, "only 3 left," or an auto-renewing subscription.
- "Doctors don't want you to know": real science doesn't need a conspiracy.
- Testimonials instead of trials: one moving story where a study should be.
- The words reverse, cure, prevent: the exact claims regulators have fined companies for.
- It's sold by the same person telling you it works.
Wanting to fix this isn't foolish. It's love with nowhere to go. Don't crush it; aim it. Two true things, held together: "I know how much you want to help her, and I love you for it. And the honest thing is, the stuff that actually helps isn't the stuff being sold. It's her hearing checked, a walk together, her blood pressure handled." Honor the feeling, share one honest fact, and point the hope at the green list and the doctor, not the checkout page.
Bring the full bottle list to a pharmacist and ask by name. The ones that actually bite: methylene blue + antidepressants (serotonin syndrome); ginkgo, high-dose fish oil, or vitamin E + blood thinners (bleeding); high-dose vitamin B6 (nerve damage over time); and any supplement started without telling the doctor who manages their prescriptions. And never let a supplement or diet replace a medicine that's working.
The bottom line
Risk reduction is real. Cure is not. Anyone who blurs that line is either mistaken or selling something. The kindest, cheapest, most powerful "brain health" moves are boring (hearing aids, a daily walk, blood pressure handled, people around the table), and they're the ones nobody runs an ad for. If a product ever makes the memory-cure promise, you already know how to read it: the other scam is hope, and it's worth protecting your family's money and heart from both.
Two trustworthy, ad-free places: the FDA's list of unproven Alzheimer's products, and the Alzheimer's Association's plain-language take on alternative treatments. Or just call the 24/7 helpline (1-800-272-3900) and ask. They field this question all day and sell nothing.