Free tracked UK delivery on every order60-day money-back guarantee

Evidence

Do brain supplements actually work?

A fair question, asked by people who have been sold to badly. The truthful answer is uncomfortable for the supplement industry: a couple of nutrients have genuine backing, most ingredients do not, and nothing in a capsule beats sleep, diet and movement.

The Enervia editorial teamLast checked How we write about supplements

The short answer

Two ingredients have authorised claims in Great Britain: DHA for maintaining normal brain function at 250mg a day, and vitamin B12 for normal psychological function and reducing tiredness. Most other 'brain' ingredients carry no authorised claim. Supplements fill dietary gaps; they do not replace sleep, diet or exercise.

Key facts

Authorised claims
DHA (brain function) and B12 (psychological function, tiredness)
DHA amount that matters
250mg a day for the authorised claim
No authorised claim
Lion's mane, phosphatidylserine, ginkgo, astaxanthin, choline
Bigger levers
Sleep, oily fish, exercise, blood pressure, hearing
Not a medicine
No supplement may claim to treat any condition

On this page

  • What 'works' has to mean
  • The two ingredients with authorised claims
  • The popular ingredients with no authorised claim
  • Five label checks that do most of the work
  • Things that outperform any capsule
  • When to see a GP instead of buying anything

What 'works' has to mean

In Great Britain a health claim may only be used if it appears on the official nutrition and health claims register. That register is the most useful shortcut a shopper has, because it separates nutrients that have been assessed from ingredients that have merely been marketed.

So when we say something 'works', we mean it either has an authorised claim behind it, or it corrects a shortfall you actually have. Those are the two honest versions of the word. Everything else is a hypothesis being sold at a premium.

The two ingredients with authorised claims

DHA is a structural omega-3 fat concentrated in the brain, and most UK adults eat well under the recommended two portions of oily fish a week, so it is a genuine gap for a lot of people. Read the DHA figure in milligrams on any label rather than the total omega-3 headline, which is usually the bigger, less relevant number.

B12 becomes more relevant with age, because absorption depends on stomach acid, which tends to fall, and some long-term medicines reduce it further. Anyone eating a vegan diet has to get B12 from fortified foods or a supplement.

  • DHA: contributes to the maintenance of normal brain function, at a daily intake of 250mg.
  • Vitamin B12: contributes to normal psychological function, and to the reduction of tiredness and fatigue.
Enervia brain and memory support food supplement, 3-bottle bundle

Most popular

Enervia — 3 Bottles, £117

90-day supply at £39 a bottle. Free tracked UK delivery, dispatched from our UK warehouse within one working day, and 60 days to change your mind.

Order now — £117

The popular ingredients with no authorised claim

Lion's mane, phosphatidylserine, ginkgo biloba, bacopa, astaxanthin, choline and most 'nootropic' blends carry no authorised health claim in Great Britain. That does not make them worthless or unsafe; it means no assessed claim can be made for them, and any seller telling you one of them is proven to improve your memory is going beyond what is allowed.

Some of them are the subject of active research. Research is not the same as a result you can rely on, and honest companies say so.

Any product hinting that it treats, prevents or slows dementia or Alzheimer's disease is breaking UK rules. Walk away from it, whatever else it contains.

Five label checks that do most of the work

This takes about five minutes on any product page and rules out most of the market. It is a better use of your time than reading another ranked list.

  • The DHA figure in milligrams, not the total omega-3.
  • Every ingredient amount published — no 'proprietary blend'.
  • Claims that match the GB register wording.
  • A refund policy measured in weeks, starting from delivery.
  • No celebrity endorsements, no news-style adverts, no disease claims anywhere on the site.

Things that outperform any capsule

If you have not done these, a supplement is the wrong place to start, and we would rather say that than sell you a bottle you do not need. A capsule fills gaps around a decent routine; it does not substitute for one.

  • Sleep: consistent, adequate sleep affects memory and concentration more than any supplement.
  • Oily fish twice a week: mackerel, sardines, salmon, herring — the food version of the DHA argument.
  • Daily movement: a brisk walk most days, not a gym membership you resent.
  • Blood pressure and hearing checked: both are linked to long-term brain health and both are free to check.
  • Company and interest: conversation, reading, learning something awkward.

When to see a GP instead of buying anything

Memory changes that are getting worse, affecting daily tasks, or being noticed by family are a reason to book an appointment, not a reason to increase a supplement order. So is persistent exhaustion, which has plenty of treatable causes worth ruling out.

Supplements are for filling nutritional gaps in otherwise ordinary life. They are not diagnostic tools and they are not treatments.

Where Enervia fits into this honestly

Enervia is a once-daily capsule containing DHA from cod liver oil, phosphatidylserine, choline, lion's mane, vitamin B12 and astaxanthin, with every amount printed on the label. Two of those six carry authorised claims; four do not, and we say so on the label page as plainly as we have said it here.

Judge it with the five checks above rather than against our marketing, and use the 60-day guarantee to decide with your own money back on the table if it is not for you.

Common brain-supplement ingredients and what may be claimed in Great Britain
IngredientAuthorised GB claim?What that means for you
DHA (omega-3)Yes, at 250mg a dayThe one to check first on any label
Vitamin B12YesMost relevant with age, or on a vegan diet
CholineNoEssential nutrient; described, not claimed
PhosphatidylserineNoStudied; no assessed claim you can rely on
Lion's maneNoFood-derived ingredient; claims are not allowed
Ginkgo bilobaNoWidely sold, no authorised claim

This is likely to suit you if

  • People who rarely eat oily fish and want DHA and B12 covered simply
  • Readers who want the label checks rather than another ranked list
  • Anyone who has already got sleep, food and walking roughly right

This is not for you if

  • Anyone expecting a supplement to treat or prevent a condition
  • Anyone with a fish allergy, pregnant or breastfeeding, or under 18
  • Anyone on anticoagulant medication who has not spoken to a pharmacist

References and further reading

Enervia is a food supplement and not a medicine. It is not intended to diagnose, treat, cure or prevent any disease. Speak to your GP or pharmacist if you take prescribed medication or are unsure whether a supplement is right for you.

Common questions

Do brain supplements actually work?

Some ingredients have assessed claims behind them — DHA for maintaining normal brain function at 250mg a day, and B12 for psychological function and tiredness. Most other ingredients do not. Supplements fill dietary gaps rather than producing dramatic change.

Which brain supplement ingredient has the best evidence?

DHA, a long-chain omega-3 fat, is the one with an authorised brain-function claim in Great Britain, at 250mg a day. Vitamin B12 has authorised claims for psychological function and reducing tiredness, and matters more as you get older.

Is lion's mane proven to improve memory?

No. Lion's mane carries no authorised health claim in Great Britain. It is studied and widely sold as a food-derived ingredient, but any seller presenting it as proven for memory is going beyond what the evidence and the rules allow.

Can any supplement prevent dementia?

No, and no product may claim to. Any advert suggesting a supplement treats, prevents or slows dementia or Alzheimer's disease is breaking UK advertising rules. Concerns about memory should go to a GP.

Is it better to change my diet than take a capsule?

Usually, yes. Two portions of oily fish a week, eggs for choline, consistent sleep and daily walking cost little and do more than any supplement. A capsule is for filling the gaps that remain around that.

60 days to change your mind · sold only at getenervia.co.uk

Ready to try Enervia?

Our most popular option is the 3-bottle bundle at £117 — 60 days to change your mind, free tracked UK delivery, and no subscription.

Order Enervia now
Secure checkout by StripeSold only at getenervia.co.uk