About the Fast Philosophy

Healthy eating made simple and delicious.

The Fast Philosophy is a convenient, easy-to-follow, tasty and nutritionally-complete eating plan based on the principles of intermittent fasting, and specifically designed around your lifestyle and weight loss goals.

How does it work?

Fast Days:

On your Fast Days there’s no calorie counting or meal prep, simply pick four nutritious and delicious meals from our product range.

There are almost 40 different meals to choose from, both sweet and savoury, breakfast to dinner and when we say meals, we mean any of our Fastpack or meal replacement products – bars, shakes, smoothies etc.

Enjoy the four Fast meals along with calorie free drinks such as water, black coffee or herbal tea. Also try our Pink Grapefruit Drink as a delicious and refreshing calorie free addition to your Fast Days’ routine.

Smart Days:

The days you’re not fasting are your Smart Days, during which you eat
Smart using the following guide:

2 x 300 Kcal meals (see our recipes for some inspiration or just check the label of any pre-packed food)
Up to 2 x 100 Kcal snacks (aim for high protein where possible)
1 x meal of your choice (anything you would normally eat…yes really!)

We have hundreds of delicious, low calorie recipes at lighterlifefast.com which are quick and easy to prepare and you can also use any of the meals from our range on your Smart Days.

Stay well hydrated (2 litres of water throughout the day is a great guide). You can have any drinks in moderation, including alcoholic drinks, but always aim for low or zero calorie drinks.


We provide you with free recipes, tips and tricks (such as weight trackers and mindful eating guides) to keep you motivated and on track.

If you’re looking for extra support then join our Facebook Group where you’ll find a friendly group of fellow Fast Philosophers ready and waiting to encourage and inspire you.

What is fasting?

When we talk about ‘fasting’ what we actually mean is ‘intermittent fasting’ by following the Fast Philosophy. And doesn’t mean eating nothing at all!

‘Intermittent fasting’ means restricting your calories to about 30-40% of your normal daily intake, on three days a week. It’s a way of eating that’s been around for a very long time and has various benefits associated with it..

Researched benefits

  • • Weight and body fat loss
  • • Increased fat burning
  • • Lowered blood insulin levels
  • • Lowered blood sugar levels
  • • Aids with increased energy levels
  • • Improved blood cholesterol levels
  • • Improved mental clarity and focus

Introducing the Switch Challenge

Switch weight loss challenge

Based on the principles of intermittent fasting, the Switch Challenge is the UK’s most popular transformation program to help you reshape your body, mind and lifestyle over 12 weeks.

Success Stories

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