Kate Donohoe had always been conscious of what she ate – and how much she drank.

Earlier in her life, the 44-year-old personal trainer had managed to lose 10 stone by radically changing her diet and taking regular exercise.

However, as recently as last Christmas, Kate says that she still found that her appetite – and weight – would swing with the seasons.

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Kate, who lives in the New Forest, says that after the festive period, with its copious amounts of sugar-filled chocolate and boozy meals, her diet would often go out the window.