Athletes and fitness influencers use creatine, but what is it? And does it work?
We find out if this fitness supplement can be used to build muscle mass, decrease fatigue and improve mental health
Is it true that … ginger shots boost immunity?
Some see the fiery root as a miracle cure for colds, but there are easier, cheaper ways to support your immune system
Baby food pouch hysteria? It’s just another way of making mothers feel guilty
We need a society that supports parents and makes good food choices achievable – not more lecturing of exhausted mums, says Guardian columnist Rhiannon Lucy Cosslett
Leading baby food brands making high-sugar meals, study finds
Food from brands such as Ella’s Kitchen and Heinz are often nutritionally poor, researchers say
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