Weight expert Michael Mosley has released a new super-fast weight loss diet that helped him shed a stone in just 21 days.
The TV presenter, who is a regular on the ITV talk show This Morning, claims he lost an entire stone in just three weeks days thanks to the Fast 800 Keto diet after indulging in treats and booze over the Christmas period.
Mosley's original Fast 800 program advises users to consume a Mediterranean style diet filled with fruits and vegetables, while eating 800 calories a day for 12 weeks.
However, the new Fast 800 keto diet, incorporates the principles of a short term low-carb, ketogenic, Mediterranean diet paired with intermittent fasting.
The new plan works on a 50:50 rule - a diet with no more than 50g of carbs, while keeping protein intake above 50g - with a daily intake of 800 to 1,000 calories. This helps your body to burn fat stores to lose weight while maintaining muscle.
Mr Mosley, the man behind the 5:2 diet, developed the diet with his wife Dr Claire Bailey in a new book addition which was released in December.
According to the book description for Dr Mosley's new Fast 800 Keto diet book, the plan is more beneficial, healthier and sustainable than a traditional keto plan.
"The secret to this new approach is that it combines keto with intermittent fasting, which means you go into ketosis faster, while also being able to enjoy delicious Mediterranean-style food," he said.
It comes as research in recent years has found the keto diet to be effective for those with type 2 diabetes to help reduce central obesity and manage blood sugar levels.
The Fast 800 Keto diet should not be followed as a long-term lifestyle plan, due to its restrictive nature. Instead it is recommended as a short term, rapid diet to help those who need to shift unhealthy weight fast.
So, what exactly does the Fast 800 diet entail? Here's what you should know, as reported by Coventry Live.
How to follow The Fast 800 Keto Diet
Following a keto diet basically means reducing the amount of carbohydrates you eat, while increasing protein, healthy fats, fruit and vegetables.
This dovetails perfectly with the life-extending Mediterranean diet, built around fruit, vegetables, seafood, beans and nuts. In The Fast 800 Keto, Dr Mosley recommends following the rule of 50:50. Keeping carbohydrates under 50g per day and ensuring protein remains above 50g, all while keeping your daily calorie intake around 800 to 1,000.
Dr Michael explained in an Instagram video the diet's basics and said: "When you're on a Keto diet, the main thing is to cut out the sugary stuff, but also the carbs - that means things like potatoes and rice. Instead, you pile in all those luscious, green leafy veg.
"The point of a Keto diet, is when you go on it, you lose weight very fast, but it also suppresses your hunger hormone, something called ghrelin. On top of that, it also helps preserve your muscles."
This diet is very restrictive and is not designed to be kept to in the longer term. In fact, thefast800.com recommends following it for no more than 12 weeks, or until you have achieved a normal BMI (body mass index). Then, you are encouraged to move to Mosley's 5:2 or Way of Life diets.
The New 5:2 is 'fasting' on two days a week by restricting calories to 800, while Way of Life is a "nutritionally-balanced guide to eating a healthy Mediterranean-style diet for life".
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