Key points
In short: Brain function is supported by the same everyday foundations as general health — sleep, regular movement, balanced meals and hydration — with specific nutrients playing defined roles. The ones with authorised claims for cognitive and psychological function are DHA, the B vitamins B6, B12 and folate, plus iodine, zinc, iron and pantothenic acid. There is no single supplement that improves cognition on its own, and consistency across diet and habits matters more than any individual product.
- Omega-3: DHA contributes to the maintenance of normal brain function, with the beneficial effect obtained at a daily intake of 250mg. Found in oily fish such as salmon, mackerel and sardines, and in algae-based supplements for anyone eating plant-based.
- B vitamins: vitamin B6, vitamin B12 and folate contribute to normal psychological function. B6 and B12 also contribute to the normal functioning of the nervous system.
- Iodine and zinc: both contribute to normal cognitive function.
- Iron: contributes to normal cognitive function, and to normal oxygen transport in the body.
- Pantothenic acid (B5): contributes to normal mental performance.
- Protein and neurotransmitters: eggs, legumes, tofu, fish and lean meats supply the amino acids the body uses to make neurotransmitters.
- Healthy fats: avocado, olive oil, nuts, seeds and oily fish.
- Steady energy: whole grains such as oats, quinoa and brown rice release energy more slowly than refined carbohydrates, which helps with sustained concentration.
- Hydration: even mild dehydration can affect how mentally sharp you feel.
- Habits that matter as much as diet: regular physical activity, a consistent sleep schedule, mental stimulation through reading or learning, stress management, and social connection.
Many people look for ways to stay mentally clear and focused in daily life. Alongside habits like good sleep, regular movement and balanced meals, some individuals also choose certain foods or supplements as part of their routine for general brain function and memory.
Below, we’ve put together an overview of popular options and everyday lifestyle practices that people often incorporate.
Recommended Supplements
(Always check with a qualified health professional before starting any new supplement.)
Omega-3 Fatty Acids (EPA & DHA)
Commonly found in fatty fish and algae-based products.
B Vitamins (B6, B12, Folate)
Essential for normal metabolic processes; often present in multivitamins.
Acetyl-L-Carnitine (ALCAR)
An amino acid derivative involved in cellular energy metabolism.
Curcumin (from Turmeric)
A naturally occurring compound with antioxidant properties, included in many wellness routines.
Nutrition Ideas for Everyday Cognitive Support
- Eat a rainbow of vegetables and fruits: Variety supplies antioxidants and phytonutrients.
- Include healthy fats: Avocado, olive oil, nuts, seeds, and fatty fish are common staples in “brain-friendly” meal plans.
- Prioritise protein: Eggs, legumes, tofu, fish, and lean meats provide amino acids used in neurotransmitter production.
- Choose whole grains: Oats, quinoa, and brown rice can help maintain steady energy for focus.
- Stay hydrated: Even mild dehydration can affect how you feel mentally.
- Limit ultra-processed foods and excess sugar: Many people find steadier energy when meals are less processed.
Lifestyle Tips Often Recommended
- Regular physical activity: Walking, swimming, or resistance training supports overall wellness and blood flow.
- Consistent sleep: Aiming for a regular sleep schedule may improve concentration and mood.
- Mental stimulation: Reading, learning new skills, puzzles, or languages keeps your mind engaged.
- Mindfulness and stress management: Practices such as meditation, yoga, or breathing exercises may help you feel calmer and more focused.
- Social connection: Spending time with friends and family can benefit overall well-being.
Looking after brain health is a long-term commitment. Consistent choices around food, daily habits and, where appropriate, supplement use can all contribute to overall well-being. Instead of quick fixes, focus on building a balanced routine and seek guidance from a healthcare professional to ensure it’s right for your individual needs.
