Should I worry about eating too many takeaways?

There is evidence that junk food can be addictive, as the combination of salt, fat and sugar makes it hard to stop eating. Photograph: jenifoto/Getty Images/iStockphoto

We’ve all been there. It has been a long day, there is nothing in the fridge, cooking seems arduous and the solution is obvious: takeaway.

It’s easy for takeaways to drift from once-in-a-while treat to twice-weekly emotional crutch. At some point, you have to wonder: even if you don’t look different in the mirror, is it doing you any harm?