What is the Fast Beach Diet?

For followers of the 5:2 diet, a new and enhanced plan has been specifically designed to shake up the routine and see results in time for summer.


Why the Fast Beach Diet?

fast beach diet book cover

This enhanced version of the original Fast Diet is aimed at people who want a short term booster plan, a more vigorous protocol either to shed those lingering pounds in preparation for your beach holiday, or if you've got a big event coming up, a wedding, a key birthday. But it's by no means for everyone. And it’s certainly not designed to be a ‘forever plan like the 5:2. If you're happy on the classic Fast Diet, if it's working for you, then stick with it. This is the Fast Diet, just a bit faster... and for six weeks only.  

The Fast Beach Diet, by Mimi Spencer, is like 5:2 bootcamp; a six-week programme with lots of fresh, summer recipe ideas and the potential to shed up to 2lbs a week.

Having co-authored the original Fast Diet book, alongside Dr Michael Mosely, Mimi's latest book aims to keep things fresh, the idea being that six weeks is enough time to see and feel a positive difference, but not so long that there's a risk of falling off the wagon. 

As well as helping with motivation, the book introduces a new HIT (High Intensity Training) exercise programme and meal plans to keep things on track for both Fast and non-Fast days.

How you can follow the Fast Beach Diet plan

All you need to do to follow the Fast Beach Diet plan is eat under 500 calories two days a week. It's not as daunting as it seems - we've got a six week meal planner for you to download, and we'll be adding two recipes a week for fast day dinners.

The main difference between the Fast Beach Diet and the original 5:2 diet is that this is a short-term plan, so eating healthily on the five non-fast days will help to get you feeling great in just six weeks. 

High Intensity Interval Training is also recommended – but you don't have to hit the gym (or even leave the house!). Check out our page of seven easy peasy home exercises for some ideas.

Getting summer ready...

Keep checking back on the Get Summer Ready homepage, as we'll be adding more recipes, tips and handy hints on sticking to the diet as the weeks go by.



If you are in reasonable health, short fasts (which will always, don't forget, include the Fast Diet's calorie allowance) should be fine. If you are on medication of any description, please see your doctor first. There are certain groups for whom fasting is not advised. Type 1 diabetics are included in this list along with anyone suffering from an eating disorder. If you are already extremely lean, do not fast. Children should never fast, so this is a plan for over-18s only. Pregnant women should eat according to government guidelines and not limit their daily calorie intake. Similarly, if you have an underlying medical condition, visit your GP as you would before embarking on any weight-loss regime.

Last updated: almost 2 years ago