VitaminsExplainer
Vitamin B12 Deficiency: Signs, Causes and Who Is at Risk
Common signs of vitamin B12 deficiency, why it happens, who is more at risk, and why a blood test, not symptoms alone, is needed to confirm it.
3 min read
Health topic
Nutrition and Healthy Eating
Good nutrition is less about perfect diets and more about the patterns you repeat every day. Here we explain what a balanced plate looks like, how drinks fit in, and how to make small swaps that are easy to keep.
Our nutrition guides lean on public-health guidance such as the World Health Organization's healthy-diet advice, and we point out where evidence is still developing.
What this topic covers
Balanced meals
Vegetables, fruit, whole grains, pulses and proteins in sensible proportions.
Drinks and hydration
Water, milk, tea and coffee, and why sugary drinks deserve a second look.
Healthy snacks
Simple snack ideas that keep you full without a sugar crash.
Food labels
How to read salt, sugar and fat information quickly in the shop.
Nutrition guides
PreventionExplainer
Signs of High Blood Sugar and When to Get Tested
The common signs of high blood sugar, why diabetes can develop without symptoms, and which tests check your levels — explained simply.
3 min read
NutritionGuide
How Much Water Should You Drink a Day?
What official guidance says about daily water intake, why '8 glasses' is only a rough guide, which drinks count, and when you need more.
2 min read
Videos on nutrition
All videosNutritionShort
This One Drink Is Destroying Your Liver (Not Alcohol!)
Watch on YouTube (opens in a new tab)Nutrition
14 Quick and Nutritious Snack Ideas for a Healthy Lifestyle | Easy and Delicious Recipes
Watch on YouTube (opens in a new tab)
Frequently asked questions
What does a healthy diet include?
Public-health guidance generally recommends plenty of vegetables, fruit, legumes, nuts and whole grains, with limited free sugars, salt and saturated or trans fats. The exact amounts depend on your age, activity level and health.