Best Supplements for Energy and Focus UK

The UK supplement market is worth over £500 million annually — and much of it is wasted on products that don't work. This guide focuses on supplements with genuine evidence from reputable UK suppliers.

Magnesium: The Most Underrated Supplement

Studies suggest up to 70% of UK adults are deficient in magnesium. Magnesium glycinate from Bulk or Holland & Barrett costs around £10–£20 for a two-month supply.

Vitamin D: Essential for UK Residents

The NHS recommends all UK adults supplement with vitamin D from October to March. A 2,000 IU daily dose from Vitabiotics or BetterYou costs around £7–£12.

Caffeine and L-Theanine: The Focus Stack

100mg caffeine with 200mg L-theanine produces cleaner focus than caffeine alone. This combination costs pennies per day when bought from Bulk Powders or MyProtein.

Focus on plugging genuine deficiencies first — vitamin D and magnesium for most UK adults — before exploring performance stacks.

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