Here's what you need to know about intermittent fasting
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Professor Francis Finucane - Consultant Endocrinologist in Galway University Hospital - described intermittent fasting as "simply a process where food intake is restricted to specific times".
He said: “The idea with it is that ultimately that you reduce your food intake over the time, on average.
"That would lead to weight loss and a reduction in the risks associated with excess weight.”
He noted there are some studies suggesting it can lead to ‘modest weight loss’ in the short-term - potentially around 3 kg in people who go on the programme for a period of months.