GET FIT ON A FAST

Fasting and low-carb diets are renowned for quick weight-loss results, but if you're an active person, could they negatively affect your exercise goals? Eve Boggenpoel asked Dr Clare Bailey Mosley and Dr Jack Mosley how you can lose weight without impacting your training

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It's almost 18 months since the tragic death of Dr Michael Mosley, and while media reaction at the time reflected the breadth of his professional influence, it was the heartfelt responses of the members of the public that showed how deeply he was loved, appreciated and missed.

Women's Fitness last featured Dr Mosley in 2021, when I trialled his Very Fast 800 programme (with exceptional results and delicious recipes that I still use every week), so it was a privilege to interview his wife and son to hear how they are honouring his legacy by continuing his work.

The latest, very timely, plan from The Fast 800 stable, The Fast 800 High Fibre, is a way of eating that supports people who are using GPL-1 weight-loss drugs such as Mounjaro and Ozempic, offering a high-fibre programme to help deal with the drugs' potential side-effects of constipation and muscle loss.

Here we ask Dr Clare Mosley and Dr Jack Mosley how The Fast 800 diet and fitness programmes can help active readers enhance their weight-loss efforts.

Should active folk not on weight-loss drugs use the new plan to help preserve muscle mass?

Dr Jack Mosley (JM): Not necessarily. The great thing about these plans is that they're very personalised. You fill in an on-boarding questionnaire about your goals - maybe you want to lose weight or eat more nutritious foods - and it will choose which of the 20 meal plans on offer is best for you. You also fill in your current exercise ability so it can choose which of the 450 exercise videos - ranging from resistance bands and kettlebell workouts to bodyweight exercises and high-intensity training - are appropriate to your level and weight-loss goals.

'Ketone bodies are a very effective form of fuel'Many of the plans restrict carbs and calories - both essential for people who exercise a lot. What are the implications of this for training?