All you need to get started
on your 5:2 journey…

“The Fast Diet certainly changed my life, and we hope it can do the same for you. Explore the resources on our site, join our community and check out the revised and updated edition of The Fast Diet book” Michael Mosley

Fast Diet books

How to do the diet

How does the Fast Diet work? How many calories should I eat? What's my BMI?

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Join the community

Get some support, discuss your training and have a chat with The Fast Diet Community.

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The Fast Diet Kitchen

Have delicious, nutritionally balanced Fast Day meals delivered straight to your door in the UK.

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Fast Day meals delivered to your door! Now 50% off your first 3-week plan when you quote FAST50 at checkout.

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