Supplements for Students: Focus, Stress and Sleep

Students face unique pressures: long hours, stress, poor sleep and irregular meals. Here's what the evidence says about supplements.

Can supplements improve focus?

No supplement sold in the UK can legally claim to improve focus, concentration or cognitive performance. Products that make these claims are not compliant. Magnesium contributes to normal psychological function, but this doesn't mean it boosts focus — it means it's needed for your brain to work normally.

Omega-3 and the brain

DHA is a major structural component of the brain. However, the evidence for omega-3 supplementation improving cognitive function in healthy adults is not strong enough for an authorised claim. If you don't eat oily fish, an omega-3 supplement can help you meet your baseline needs.

Magnesium and stress

Magnesium contributes to normal psychological function and to the normal functioning of the nervous system. While there's no authorised claim for magnesium reducing stress, maintaining adequate magnesium intake is part of overall wellbeing.

What actually works

The NHS recommends: getting 7-9 hours of sleep, eating regular meals, getting physical activity (even a short walk), and managing stress through talking, mindfulness or counselling. No supplement replaces these fundamentals.

What to skip

Skip 'study' supplements with caffeine, guarana and B-vitamins — they're often just expensive energy drinks. Skip nootropics with unverified claims. Skip anything that promises better grades.

If you supplement

If you're 16 or 17, talk to a parent or GP before taking any supplement. If you're 18+, a basic vitamin D supplement in winter and magnesium if you don't eat enough magnesium-rich foods are reasonable choices. Always follow the label instructions.