8 nutritional deficiencies that slowly destroy the functioning of our brain

By Akanksha
July 28, 2025

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Nutrients that our brain needs

The human brain is an incredibly delicate organ, silently dependent on everyday nutrients to keep memories sharp, thoughts clear, and emotions balanced. But what happens when the body silently runs lo

Vitamin B1 (Thiamine)

Often associated with energy, thiamine is also critical for transmitting signals between brain cells. Long-term deficiency can mimic symptoms of early dementia, but few link it to the silent erosion o

Omega-3 fatty acids

Commonly praised for heart health, omega-3s are structural fats in the brain, essential for flexible thinking and mood balance. When levels drop, emotional stability may crack, and slow thinking becom

Iron

Iron deficiency isn’t just about tiredness; it starves the brain of oxygen. Over time, it can shrink attention spans and subtly distort the ability to store new memories, especially in growing brains

Zinc

While mostly associated with immunity, zinc directly influences neurotransmitter signals. Its deficiency can create a chemical imbalance in the brain, nudging behaviour toward anxiety and impaired jud

Vitamin B12

Though often tied to energy, B12’s real job is maintaining the myelin sheath, the protective covering around neurons. A long-term shortage damages this coating, making thoughts feel scattered and refl

Magnesium

Labelled a relaxation mineral, magnesium actually regulates over 300 enzymes, many in the brain. When depleted, it may cause frequent brain fog, unexpected mood swings, and even distorted perception o

Choline

Rarely highlighted in diets, choline helps make acetylcholine, the neurotransmitter for memory and muscle control. Without it, the brain slowly loses its edge in learning and recall, like a library mi

Vitamin D

Most know it helps bones, but vitamin D also supports brain growth and mood-regulating chemicals. Persistent deficiency can mimic signs of depression and slow down information processing without being

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