*Not all products in this category have an EFSA-approved health claim. Products with an EFSA claim are described as such in the text. For other products, they are grouped under this theme based on traditional use or product formula. For specific health questions, we recommend consulting a doctor or orthomolecular therapist.
Written by the Plenthera team (orthomolecularly trained). Scientifically reviewed in April 2026. Last updated: April 30, 2026.
Your brain consumes 20% of your daily energy while being only 2% of your body weight. For optimal function, it needs specific nutrients: omega 3 DHA (50% of brain fat), B vitamins for methylation, magnesium for neural signal transmission, and choline for neurotransmitter production. Plus: Lion's Mane for nerve growth research, cordyceps for mental energy, and theanine for focus without agitation.
Which cognition stack suits you?
| Situation | Stack | Time |
|---|---|---|
| General cognition 40+ | Omega 3 DHA + B-complex + Lion's Mane | Daily |
| Study / work focus | Lion's Mane + cordyceps + L-theanine | Morning |
| Memory theme | Omega 3 DHA + magnesium L-threonate + B12 | Daily |
| Cognitive decline prevention | Broad stack + lifestyle (exercise, sleep) | Ongoing |
| Pre-workout mental | Cordyceps + theanine + caffeine | Before activity |
What is brain & focus?
The brain is a metabolically hungry organ. For optimal function, it needs a constant supply of: omega 3 fatty acids (especially DHA, which makes up 50% of the brain's dry weight), B vitamins (cofactors in neurotransmitter production and methylation), magnesium (signal transmission), and glucose. Cognition supplements work through these fundamentals plus specific nootropics like Lion's Mane.
Omega 3 DHA is perhaps the most crucial brain supplement. DHA constitutes 50% of the dry weight of brain membranes — with a deficiency, neurons function suboptimally. EFSA recognizes that DHA contributes to the maintenance of normal brain function at 250 mg/day. For cognitively-oriented use, it is often dosed higher — 500-1,000 mg DHA per day.
B vitamins, especially B12 and folic acid, are essential for methylation — a process that drives neurotransmitter production and nerve maintenance. B12 deficiency can cause dementia-like symptoms that are reversible with supplementation. For MTHFR gene variant carriers (30-50% of the population), methylfolate is more effective than synthetic folic acid.
For specific cognitive themes, there are additional options. Lion's Mane (Hericium erinaceus) is being researched for nerve growth factor (NGF) and memory issues. Magnesium L-threonate is the only form of magnesium that effectively crosses the blood-brain barrier. Cordyceps provides mental energy without a caffeine spike. L-theanine combines with caffeine for focus without agitation. For severe cognitive issues (mild cognitive impairment, dementia): medical diagnosis and care, supplements as an adjunct.
Brain & Focus and EFSA — what is scientifically recognized?
EFSA has not recognized an overarching cognition claim. However, there are components with relevant recognized claims:
"DHA contributes to the maintenance of normal brain function." (250 mg/day)
"Vitamin B12 contributes to normal psychological function."
"Iodine contributes to normal cognitive function."
"Iron contributes to normal cognitive function."
Thresholds apply to daily intake that provides at least 15% RI.
The cognition stack at Plenthera
Omega 3 DHA 500-1000 mg
EFSA claim brain function.
Lion's Mane 500-1500 mg
NGF research.
Magnesium L-threonate 1500-2000 mg
Crosses blood-brain barrier.
B-complex (especially B12 + folic acid)
Methylation.
Citicoline (CDP-choline) 250-500 mg
Choline pathway for neurotransmitters.
Cordyceps + Lion's Mane combo
Mental energy + focus.
L-theanine 100-200 mg (with caffeine)
Focus without agitation. View our amino acid category.
How to use brain & focus?
Simple basic approach for cognition:
- Standard cognition basics: omega 3 DHA + B-complex + Lion's Mane.
- For focus: cordyceps during the day + L-theanine with caffeine.
- For memory: magnesium L-threonate + DHA + B12.
- For 50+ cognitive: broad stack + exercise + social activity.
- Combine with sleep hygiene — memory consolidation occurs at night.
- Exercise stimulates BDNF (brain-derived neurotrophic factor) — at least as important as supplements.
- In case of mild cognitive decline or dementia: medical diagnosis, not self-medication.
Myths and misunderstandings about brain & focus
Myth 1: "A pill solves cognitive issues."
Supplements are an addition to lifestyle, not a replacement.
Myth 2: "The more supplements, the better."
Stacking doesn't work — choose a targeted stack and allow time.
Myth 3: "Supplements work acutely for cognition."
Cumulative effect, allow 4-8 weeks.
Myth 4: "All brands are equal."
Quality varies widely — choose premium for targeted effect.
Combining Brain & Focus with other supplements
Supplements for brain and focus work within a broader wellness cluster:
Frequently asked questions
Which supplements for the brain?
Omega 3 DHA, Lion's Mane, B-complex, magnesium L-threonate.
Lion's Mane for cognition?
NGF research. EFSA claims not recognized, clinically positive in limited studies.
Omega 3 DHA for the brain?
EFSA claim brain function 250 mg/day.
Magnesium L-threonate — special?
Only magnesium form that crosses the blood-brain barrier.
B12 for cognition?
Crucial — deficiency can cause dementia-like symptoms (reversible).
What are nootropics?
Substances that improve cognition — natural (Lion's Mane, bacopa) or synthetic.
Citicoline action?
Choline source for acetylcholine production — neurotransmitter for memory.
Caffeine + theanine?
Classic combination for focus without agitation.
How long before it works?
4-12 weeks for cumulative effects.
For dementia?
Medical care is paramount. Supplements are supplementary.
Sources
- EFSA Regulation (EU) 432/2012 — relevant component claims.
Disclaimer: This text is for informational purposes only and does not replace medical advice. Supplements are food supplements, not medicines. If in doubt or if using medication, we recommend consulting a doctor or orthomolecular therapist first. For serious or persistent complaints: medical care remains the basis.