Is it true that … taking collagen supplements slows signs of ageing?

Many people take collagen powders and pills in the hope of looking younger for longer, but there are better ways to improve your chances

Is it true that … detox diets flush toxins out of your body?

The body has a built-in cleansing system that needs energy and nutrients to function well, so you’re better off feeding it

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?