The trendy 'miracle cure' that helps you sleep: Everything you need to know about magnesium and how to pick the right supplements to boost anything from immunity to nerve function

Move over, CBD; off you pop, vitamin D and pipe down, collagen – because now magnesium is having a moment. Meanwhile, nutritionist Pippa Campbell, author of Eat Right, Lose Weight and whose devotees include Gabby Logan and Zoe Ball, notes that her Magnesium Complex, which supports ‘relaxation, energy and muscle function’, is now the top seller in her range of supplements. ‘Magnesium is an essential mineral that is important for many different processes in the body – these include muscle and nerve function, the immune system, energy production, sleep and bone health,’ says GP Dr Gemma Newman, author of Get Well, Stay Well. ‘People are becoming much more magnesium savvy about the different types and its many beneficial uses,’ says Rob Hobson, nutritionist at vitamin and supplement specialist Healthspan. ‘If you’re not sleeping well, are stressed, have migraines or hormonal issues, then try a magnesium supplement and see how you get on,’ says Campbell.