Is it true that … potatoes are bad for you?
Spuds have a reputation for causing spikes in blood sugar, but it all depends on the variety and the way it is prepared
A tub a day: might eating yoghurt help you live longer?
When the world’s oldest woman passed away at 117, much was made of her three yoghurts a day diet. But what role does yoghurt actually play in longevity?
The truth about cholesterol: 12 things you need to know – from eggs to weight to statins
What is good and bad cholesterol? Should you remove fat from your diet? And what about shellfish? Experts explain it all
Want your kids to be caring and sharing? Feed them fish
A new study shows that children who eat seafood are more likely to share their toys and help their friends. But why?
The one change that worked: ditching ultra-processed foods made me feel healthier and happier
After being diagnosed with a chronic digestive disorder, I cut out junk food and ready meals. Now, my diet is full of fruit and veg – and I’ve got my mojo back
‘It’s not ethical and it’s not medical’: how UK rehab clinics are cashing in on NAD+
They are beloved by A-listers and surging in popularity. But claims that NAD+ infusions are a fix for addiction are unproven, risky – and possibly illegal, an Observer investigation reveals
Is it true that … you should feed a cold and starve a fever?
A professor of medicine weighs in on the old wives tale, and discusses the fastest routes to recovery
The fibre phenomenon: 30 easy ways to get your fill of this life-changing nutrient
It reduces the risk of heart disease, stroke, type 2 diabetes and colon cancer – while boosting the health of our gut microbiome and brain. Yet we all eat far too little fibre. Here is the no-fuss guide to getting your 30g a day
66 days to cut down sugar: ‘I find myself enjoying the sweetness of my lip balm’
With a family history of diabetes, Sharlotte Thou knows she has to reduce the amount of sucrose in her diet. Will nine weeks be enough to tame her sweet tooth?
Is it true that … most of us aren’t getting enough protein?
The general population needs far less protein than is often made out by influencers. Don’t miss out on other important aspects of your diet