UCLH Health

Guides

Practical health guides

Everyday wellbeing, explained simply.

Guides Apple cider vinegar: what the evidence really shows

What apple cider vinegar can and can't do, why the viral 'before bed' promises aren't supported, and the genuine safety risks to know about.

 Guides Creatine: what it does, how to take it, and the hair-loss question

One of the best-evidenced sports supplements — what it actually does, how to take it, and an honest look at the hair-loss claim.

 Guides Electrolytes and hydration: when you actually need them

What electrolytes do, when products genuinely help, and an honest look past the marketing.

 Guides High-protein foods: a practical, food-first guide

What protein does, roughly how much you need, and the everyday foods that deliver it without the hype.

 Guides Magnesium: forms, benefits, and what the evidence supports

What magnesium does, how the common supplement forms differ, and where the evidence is strong or still limited.

 Guides Probiotics and gut health: what the evidence supports

What probiotics are, how they differ from prebiotics, and where the evidence is reasonable versus where the marketing runs ahead of it.

 Guides Psyllium husk and fibre: what works and how to take it safely

What psyllium husk and dietary fibre do, where the evidence is genuinely strong, how to take it safely, and what the 'cancer warning' headlines really mean.

 Guides How to sleep better: falling asleep faster and managing insomnia

The honest truth about how much sleep you need, and practical, evidence-based ways to fall asleep faster and sleep better.

 Guides Turmeric and curcumin: what the evidence does and doesn't show

What turmeric is, what the research actually supports, and how to use it safely as a spice or a supplement.

 Guides Vitamin D: sunlight, food, and the NHS supplement advice

What vitamin D does, why UK advice suggests a winter supplement, and what the evidence does and doesn't support.

 Guides Metabolism: how it works and what affects it

What metabolism actually is, what genuinely affects it, and which common claims the evidence doesn't support.

 Guides Muscle health: strength, movement, and ageing well

Why muscle matters at every age, and what the evidence supports for keeping it.