The initial phase lasts just one week and involves restricting calorie intake to around 1000kcal for three days, consuming three sirtfood green juices and one meal rich in sirtfoods each day.
The juices include kale, celery, parsley, green tea and lemon, all of which can help boost the metabolism and boost weight loss results.
From days four to seven, energy intakes are increased to 1500kcal a day consisting of two sirtfood green juices and two sirtfood rich meals a day.
The second phase is known as the maintenance phase which lasts 14 days where steady weight loss occurs. The authors believe its a sustainable and realistic way to lose weight.
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Sirtfoods should be accompanied with protein for a meal. The authors recommend oily fish and advise in their book that moderate dairy consumption is perfectly fine.
The chocolate needs to be dark as this contains a loss less calories and red wine should only be drunk on occasion.
What makes this diet so easy is that you can repeat the two phases as many times as you want, meaning your body is never deprived of certain food groups or calories for long periods of time.
It is also all about the types of foods you are consuming rather than the ones you should be cutting out which is why coffee is also another beverage allowed for slimmers on the diet.
Matcha can also be added to foods to disguise the taste and you can add it to baked goods, smoothies as well as mixing it in with porridge or granola.
The powder contains a lot less caffeine than a cup of coffee but at the same time provides the body with an energy boost to keep you going throughout the day.
Adele also worked with a personal trainer to help her see results quicker through exercise. Exercising is an essential part of any weight loss journey and the NHS recommends around an hour per day.
Its also been revealed that she regularly enjoys pilates which is not only good for weight loss but also good for relaxing.
However it is said that the popstar likes reformer pilates, a type of pilates that helps improve posture, flexibility and balance as well as a great weight loss strategy.
The Hello singer isnt the only celebrity who likes this type of exercise as it is popular amongst others like Jennifer Aniston, Kate Winslet and Madonna too.
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Adele weight loss: Sirtfood diet and exercise routine that helped singer lose 7st - Express
