Know your brain: nutrients, foods and when to see a doctor

FirstShield guide: nutrients for your brain

Your brain uses about a fifth of the energy your body makes every day. A few nutrients matter most for it, and most of them come from everyday food.

Nutrients that support your brain

Omega-3 (fish oil)

The EPA and DHA fats in fish oil support the heart and brain.

  • How much you need: No official allowance; supplements usually give 250–1,000 mg EPA + DHA a day.
  • Best food sources: Oily fish (mathi/sardine, mackerel), walnuts, flaxseed.

Be careful:

  • On blood thinners (warfarin, clopidogrel, aspirin): ask a doctor — more bleeding risk.
  • Fish allergy: avoid fish oil.

Vitamin B12

Makes red blood cells and keeps nerves healthy. Low B12 causes tiredness, tingling and numbness.

  • How much you need: 2.5 mcg a day (ICMR-NIN 2020).
  • Best food sources: Milk, curd, paneer, eggs, fish and meat. Strict vegetarians are often low.

Be careful:

  • People on metformin for years are often low — worth a test.

Folate (folic acid)

Needed to make new cells and blood, and for the nervous system. Essential before and in early pregnancy.

  • How much you need: Pregnancy planning: doctors advise folic acid from before conception.
  • Best food sources: Green leafy vegetables, pulses, citrus fruit.

Be careful:

  • High-dose folic acid can hide a B12 deficiency — take B12 too if low.

Everyday habits that help

  • Good sleep
  • Stay active

When to see a doctor: Memory loss, confusion or a sudden change in behaviour needs a doctor, not supplements.

Before you take any supplement

  • Supplements fill a gap in the diet; they do not treat disease. Anyone with a diagnosed condition (diabetes, kidney, liver or heart disease) or on regular medicines should ask their doctor first.
  • Doses here are for ADULTS. Children’s and pregnancy supplements are chosen by the doctor.
  • Only products made entirely of nutrients are suggested (vitamins, minerals, probiotics, amino acids, plant extracts) — anything that also contains a drug is left out.
  • Daily amounts are the ICMR-NIN 2020 recommended dietary allowances where one exists; more is not better.
  • Products are listed focused-first (1–3 ingredients), then multivitamins, each by how often our shops sold it — a multivitamin may carry only a small amount of a given nutrient.

Not sure what suits you? Ask our pharmacist at any FirstShield store, or message us on WhatsApp.

This article is general information, not medical advice. Talk to your doctor or our pharmacist before starting or changing any medicine.