Often we get to this time of year and people are taking a hard look at their health and lifestyle choices.
Dr Michael Mosley is a trained doctor, science journalist, television presenter, bestselling author of many, many health and wellbeing books.
He is also gut specialist and the brains behind the popular 5:2 intermittent fasting diet.
And he's back just in time for the New Year with a new book - a cookbook based on his Fast 800 diet.
Mosley joined Tim Dower to discuss how Covid has affected dieting, and what people need to do to stick to their diet goals.
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