Welcome to The Fast Diet › The official Fast forums › Body › Weight loss › 800 or 600 calories for 5:2?
This topic contains 4 replies, has 3 voices, and was last updated by Cinque 6 months ago.
Viewing 5 posts - 1 through 5 (of 5 total)
7 Jun 19
I’m a bit confused – I read on one of Micheal’s posts that you can now have 800 calories on a fast day. Have I got that right? It’s just that I’ve been doing that but only lost 1lbs in 3 weeks!
Dr Mosley originally made the fast days 500 calories for women and 600 calories for men as it is a quarter of the average recommended daily intake.
This was the MAXIMUM intake for fast days, many people do no calories or as little as they can sustainably manage (I do about 350 on average).
Because so many people found this amount too difficult, and there was more research out, Dr Mosley found that the maximum could be upped to 800 on fast days and the 5:2 way of eating would still work. This makes it workable for a larger number of people.
So it is up to you. The less calories you eat on a fast day, the more quickly you will lose weight. But the important thing about 5:2 is for it to be a sustainable, long term way of eating. Therefore, you might like to start with 800, and then as you get comfortable, find out the amount that suits your lifestyle etc.
Good luck with it!
Bethell: it is well worth reading Dr Mosley’s latest book ‘The Fast 800’. His guidelines cover more than just calories. There is a new cookbook due out in a week or so.
10 Jun 19
Thanks so much Cinque, that’s really helpful. I’ll try eating a little less calories on fasting days and see what happens.
Thanks Firefox7275, I we keep an eye out for the book.
All the best,
11 Jun 19
Cheers Rob, you’ll find what suits you. Somewhere in between 800 calories and water only! 🙂
You must be logged in to reply.
Username or Email:
Track your weight and measurements, BMI and TDEE with our new tracker.
The Fast books are available throughout the world and in many different languages. Buy a copy today.
Michael is touring Australia this September! Here's a link to dates and tickets. Hope to see you there.
Michael Mosley gives an update for 2019, current research in the field and announces a tour starting in February.
Michael looks at the Horizon special, "What's the Right Diet for You" and tells us which diet they say is best for him.
• All featured posts •
in Weight loss • updated 33 minutes ago by Barata
in Weight loss • updated 43 minutes ago by Snowflake56
in Weight loss • updated 1 hour, 2 minutes ago by hedgehogs
• All recent topics •
Copyright © 2019 Michael Mosley and Mimi Spencer
Technical questions or problems with the site? Please email our technical contact.