🧠 Best foods for brain function and memory
What to do — the quick answer
Tap any line for the reason, the evidence level and the source. The full step-by-step explanation follows below.
🥗 Eat more of
Eggs, boiledSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal brain function · 78 mg per portion Step 2“DHA contributes to maintenance of normal brain function.” Effect with 250 mg of DHA per day. EUR-LexEU CommissionEU claim Healthy nerves · 2.4 µg per portion Step 2“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 62.4 µg per portion Step 2“Iodine contributes to normal cognitive function.” EUR-LexEU CommissionEU claim Mental performance · 1.3 mg per portion Step 2All nutrients & evidence for eggs, boiled →“Pantothenic acid contributes to normal mental performance.” EUR-LexEU Commission
HerringSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal brain function · 1508 mg per portion Step 2“DHA contributes to maintenance of normal brain function.” Effect with 250 mg of DHA per day. EUR-LexEU CommissionEU claim Healthy nerves · 12.5 µg per portion Step 2All nutrients & evidence for herring →“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU Commission
MusselsSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Healthy nerves · 12 µg per portion Step 2“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 231 µg per portion Step 2All nutrients & evidence for mussels →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission
Beef mince, leanSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Healthy nerves · 6.3 µg per portion Step 2“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 2.7 mg per portion Step 2All nutrients & evidence for beef mince, lean →“Iron contributes to normal cognitive function.” EUR-LexEU Commission
Oat drink, fortifiedSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 56.3 µg per portion Step 2All nutrients & evidence for oat drink, fortified →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission
FetaSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 23.4 µg per portion Step 2All nutrients & evidence for feta →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission
Red lentils (dry)Supports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 4.4 mg per portion Step 2All nutrients & evidence for red lentils (dry) →“Iron contributes to normal cognitive function.” EUR-LexEU Commission
TofuSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 4.3 mg per portion Step 2All nutrients & evidence for tofu →“Iron contributes to normal cognitive function.” EUR-LexEU Commission
Oat flakes (rolled oats)Supports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 1.8 mg per portion Step 2All nutrients & evidence for oat flakes (rolled oats) →“Zinc contributes to normal cognitive function.” EUR-LexEU Commission
CauliflowerSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Mental performance · 1.6 mg per portion Step 2All nutrients & evidence for cauliflower →“Pantothenic acid contributes to normal mental performance.” EUR-LexEU Commission
Button mushroomsSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Mental performance · 1.3 mg per portion Step 2All nutrients & evidence for button mushrooms →“Pantothenic acid contributes to normal mental performance.” EUR-LexEU Commission
Drinking waterSupports nerve cellsHow it helps your brainThese nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Stay hydrated · 250 ml per portion Step 2All nutrients & evidence for drinking water →“Water contributes to the maintenance of normal physical and cognitive functions.” Effect with at least 2.0 L of water from all sources per day. EUR-LexEU Commission
Potato, unpeeledHealthy pressure for the brainHow it helps your brainHigh blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (200 g): 926 mg Potassium
The evidenceEU claim Normal blood pressure · 926 mg per portion Step 1All nutrients & evidence for potato, unpeeled →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission
Sweet potatoHealthy pressure for the brainHow it helps your brainHigh blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (200 g): 720 mg Potassium
The evidenceEU claim Normal blood pressure · 720 mg per portion Step 1All nutrients & evidence for sweet potato →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission
🏃 Do
Evidence: EU claim EU-authorised claim · Official Official guidance · Trials Clinical trials · Study Population study · Review Scientific review
Turn this into my daily strong brain & focus plan → How it works, step by step ↓
What your brain needs to work well
The brain depends on a steady blood supply and on nutrients for normal nerve function. CDC
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A steady blood supply
Root cause: High blood pressure, diabetes and smoking damage the vessels that feed the brain.
🥗 Eat
- Potato, unpeeledHealthy pressure for the brainHow it helps your brain
High blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (200 g): 926 mg Potassium
The evidenceEU claim Normal blood pressure · 926 mg per portionAll nutrients & evidence for potato, unpeeled →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission - Sweet potatoHealthy pressure for the brainHow it helps your brain
High blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (200 g): 720 mg Potassium
The evidenceEU claim Normal blood pressure · 720 mg per portionAll nutrients & evidence for sweet potato →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission 
Edamame (immature soya beans)Healthy pressure for the brainHow it helps your brainHigh blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (100 g): 620 mg Potassium
The evidenceEU claim Normal blood pressure · 620 mg per portionAll nutrients & evidence for edamame (immature soya beans) →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission
Hokkaido pumpkinHealthy pressure for the brainHow it helps your brainHigh blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (150 g): 611 mg Potassium
The evidenceEU claim Normal blood pressure · 611 mg per portionAll nutrients & evidence for hokkaido pumpkin →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission
Chicken breast, skinlessHealthy pressure for the brainHow it helps your brainHigh blood pressure can damage the blood vessels that feed the brain. Potassium is authorised to contribute to normal blood pressure. CDCEUR-Lex
One portion (150 g): 603 mg Potassium
The evidenceEU claim Normal blood pressure · 603 mg per portionAll nutrients & evidence for chicken breast, skinless →“Potassium contributes to the maintenance of normal blood pressure.” EUR-LexEU Commission
🏃 Do
🚫 Cut down on
Heavy drinkingOfficial
Excessive drinking over time can cause high blood pressure or brain injury; drink in moderation if at all. CDC
How this step works · what slows it down · sources
High blood pressure can damage blood vessels and limit blood flow to the brain, which damages the brain. It also raises the risk of stroke. CDC
“EU claim” items use the exact wording of Reg. (EU) No 432/2012 EUR-Lex; listed foods meet the legal condition of use (amounts per normal portion, BLS 4.0 / USDA).
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Nerve cells and thinking
Root cause: Nerves need specific nutrients to work normally.
🥗 Eat
- Eggs, boiledSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal brain function · 78 mg per portion“DHA contributes to maintenance of normal brain function.” Effect with 250 mg of DHA per day. EUR-LexEU CommissionEU claim Healthy nerves · 2.4 µg per portion“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 62.4 µg per portion“Iodine contributes to normal cognitive function.” EUR-LexEU CommissionEU claim Mental performance · 1.3 mg per portionAll nutrients & evidence for eggs, boiled →“Pantothenic acid contributes to normal mental performance.” EUR-LexEU Commission - HerringSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal brain function · 1508 mg per portion“DHA contributes to maintenance of normal brain function.” Effect with 250 mg of DHA per day. EUR-LexEU CommissionEU claim Healthy nerves · 12.5 µg per portionAll nutrients & evidence for herring →“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU Commission - MusselsSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Healthy nerves · 12 µg per portion“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 231 µg per portionAll nutrients & evidence for mussels →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission - Beef mince, leanSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Healthy nerves · 6.3 µg per portion“Vitamin B12 contributes to normal functioning of the nervous system.” EUR-LexEU CommissionEU claim Normal thinking · 2.7 mg per portionAll nutrients & evidence for beef mince, lean →“Iron contributes to normal cognitive function.” EUR-LexEU Commission - Oat drink, fortifiedSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 56.3 µg per portionAll nutrients & evidence for oat drink, fortified →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission - FetaSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 23.4 µg per portionAll nutrients & evidence for feta →“Iodine contributes to normal cognitive function.” EUR-LexEU Commission - Red lentils (dry)Supports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 4.4 mg per portionAll nutrients & evidence for red lentils (dry) →“Iron contributes to normal cognitive function.” EUR-LexEU Commission - TofuSupports nerve cellsHow it helps your brain
These nutrients are authorised to contribute to normal brain function, thinking or the nervous system. EUR-Lex
The evidenceEU claim Normal thinking · 4.3 mg per portionAll nutrients & evidence for tofu →“Iron contributes to normal cognitive function.” EUR-LexEU Commission
🏃 Do
150 min activity / weekOfficial
Adults should get 150 minutes of physical activity a week; treating hearing loss may also reduce dementia risk. CDC
How this step works · what slows it down · sources
Several nutrients are authorised to contribute to normal cognitive function, mental performance or the nervous system. EUR-Lex
“EU claim” items use the exact wording of Reg. (EU) No 432/2012 EUR-Lex; listed foods meet the legal condition of use (amounts per normal portion, BLS 4.0 / USDA).
Authorised claims say a nutrient contributes to a normal body function. They do not mean that eating more than you need improves that function, or that a food treats any condition. Population studies show associations, not proof of cause.
Meal options built from this flow
Pick any option per meal. Ranked by how well one portion covers this goal's targets and how many steps above its foods support (reference adult, everything diet). The planner adapts portions, diet type and allergies.
Breakfast — pick one of 3
Wholemeal rye bread
Avocado
Kiwi fruit
Wheat germLunch — pick one of 3
Quinoa, boiled
Romaine lettuceDinner — pick one of 3
Eggs, boiled 180 g (3 eggs) · 
Courgette (zucchini) 100 g · 
Red sweet pepper 60 g · 
Emmental cheese 20 g · 
Lamb's lettuce 40 g · 
Wholemeal bread 40 g · 
Olive oil 5 g
Shrimp 120 g · 
Buckwheat groats (dry) 50 g · Red sweet pepper 80 g · 
Broccoli 80 g · 
Carrots 60 g · 
Rapeseed (canola) oil 5 g
Wholemeal pasta, boiled
GarlicSnack — pick one of 3
Soya yogurt alternative, fortified
Walnuts
Raspberries
Cottage cheese 100 g · 
Sweet cherries 100 g
Wholemeal rye crispbread
Peanut butter (100% peanuts)
BananaIn short
DHA is authorised to contribute to the maintenance of normal brain function (250 mg per day). Iron, iodine and zinc contribute to normal cognitive function; vitamin B12 to normal functioning of the nervous system; pantothenic acid to normal mental performance.
What official sources say
Key nutrients & daily targets
Shown for a reference adult (40-year-old man, 75 kg, ~2600 kcal). Your plan recalculates these for your age, sex and weight.
| Nutrient | Daily target | Basis |
|---|---|---|
| DHA | 250 mg (weekly avg) | Condition of the EU DHA brain/vision claim: 250 mg DHA per day EUR-Lex |
| Iodine | 150 µg | NIH ODS Recommended Dietary Allowance / Adequate Intake for your age and sex NIH ODS |
| Iron | 8 mg | NIH ODS Recommended Dietary Allowance / Adequate Intake for your age and sex NIH ODS |
| Zinc | 11 mg | NIH ODS Recommended Dietary Allowance / Adequate Intake for your age and sex NIH ODS |
| Vitamin B12 | 2.4 µg | NIH ODS Recommended Dietary Allowance / Adequate Intake for your age and sex NIH ODS |
| Pantothenic acid (vitamin B5) | 5 mg | NIH ODS Recommended Dietary Allowance / Adequate Intake for your age and sex NIH ODS |
All authorised EU health claims for this goal (7)
Exact wording from Regulation (EU) No 432/2012. A food may only carry a claim if it meets the legal condition of use — on each food page we show the numbers that meet (or miss) it.
Pantothenic acid contributes to normal mental performance.EUR-LexEU CommissionNIH ODS
Iron contributes to normal cognitive function.EUR-LexEU CommissionNIH ODS
Zinc contributes to normal cognitive function.EUR-LexEU CommissionNIH ODS
Vitamin B12 contributes to normal functioning of the nervous system.EUR-LexEU CommissionNIH ODS
Iodine contributes to normal cognitive function.EUR-LexEU CommissionNIH ODS
DHA contributes to maintenance of normal brain function.
Water contributes to the maintenance of normal physical and cognitive functions.
Foods ranked by nutrient content (14)
Ranked by how much of the daily target one normal portion provides (nutrient values: BLS 4.0 / USDA FDC), plus authorised claims the food qualifies for.
Mussels · 150 g
Herring · 125 g
Cod · 150 g
Mackerel · 125 g
Alaska pollock · 150 g
Sardines in oil, drained · 90 g
Trout · 125 g
Salmon · 125 g
Eggs, boiled · 120 g (2 eggs)
Shrimp · 100 g
Tuna, canned, drained · 100 g
Beef mince, lean · 125 g
Beef rump (lean red meat) · 125 g
Oat drink, fortified · 250 g
Example day from a strong brain & focus plan
Generated automatically for the reference adult. Your plan adapts portions, diet type and allergies.
Eggs, boiled 180 g (3 eggs) · Wholemeal bread 110 g · 
Spinach 50 g · 
Tomatoes 100 g · Olive oil 10 gMackerel 170 g · Buckwheat groats (dry) 90 g · Carrots 100 g · 
Leek 60 g · Rapeseed (canola) oil 10 gCottage cheese 180 g · Sweet cherries 180 gSources
- Commission Regulation (EU) No 432/2012 — list of permitted health claims (consolidated) — European Union (EUR-Lex)
- EU Register of nutrition and health claims made on foods — European Commission
- Ginkgo — NIH NCCIH
- Iodine — fact sheet for health professionals — NIH Office of Dietary Supplements
- Reducing risk for dementia — US Centers for Disease Control and Prevention
- Bundeslebensmittelschlüssel (BLS) 4.0 — German Nutrient Database — Max Rubner-Institut
- FoodData Central — USDA Agricultural Research Service