€119
A structured 5 Day Fast mimicking programme, based on the research of Prof Valter Longo. A periodic reset of your eating pattern, with a personalised menu, all supplements for five days, and an exercise schedule. More than 2,000 participants have already gone before you.
What's in the box?
✔ All supplements for 5 days (Omega, Glycerol, Spirulina, ION* Gut Support, Magnesium, Multivitamine and NAC)
✔ A menu you can personalise yourself for 5 days, incl shopping list, by email
✔ An exercise schedule to support you
Ordered Mon to Fri before 18:00, sent the same day.
Free home delivery
100% Vegan
Powered by

From click to fast

Create your personal menu
Right after your order, you'll receive an email invitation to put together your personal menu.
This allows the nutrition plan to be tailored to your preferences, while keeping the structure of the protocol intact.

Get your menu, recipe book and shopping list

Get your supplements delivered to your home

Start your 5 Day Fast
Once everything is ready, you can start with 5 Day Fast. If you have any questions before, during or after the programme, our team can be reached via the contact form, email or by phone.
What's in the 5 Day Fast package?
The 5 Day Fast package gives you everything you need to properly carry out the 5-day fasting mimicking protocol.
In the programme you get:
supplements for 5 days
a personal menu
a shopping list
practical instructions, including videos and a knowledge base
an exercise plan
The aim is to take away any doubt. You don't have to figure out yourself what to eat, which supplements to take, when to take them, or how to structure the 5 days. 5 Day Fast has been developed to make the process clear and practical. Need help with anything? Our team is ready for you via the contact form, email or by phone.
Which supplements are in the 5 Day Fast pack?
The 5 Day Fast pack contains carefully selected supplements that support the structure of the 5-day protocol. Each supplement has a specific role, from supplementing essential nutrients to supporting fatty acid intake, muscle function, the gut environment and the whole body during a period of lower energy intake.
The programme
30+
Years of supporting science
How it works
How does 5 Day Fast work?
5 Day Fast works by combining controlled energy restriction with targeted nutrition and supplements.
During the programme, your body gets less energy than normal. The availability of carbohydrates decreases, glycogen stores gradually get lower, and your body starts to rely more on fat as an energy source. As the programme progresses, ketone production might increase.
At the same time, the load on your digestion is reduced, because your food intake is temporarily decreased and you only take in fresh, healthy products.
5 Day Fast is scientifically backed and developed to make the fasting process more controlled, practical, and easier to fit in with all the other things you do for your health.
Op de eerste dag gebruikt je lichaam nog vooral opgeslagen koolhydraten, ook wel glycogeen genoemd. Omdat glycogeen samen met water wordt opgeslagen, kan het getal op de weegschaal al snel dalen.
Deze vroege gewichtsverandering bestaat grotendeels uit water en glycogeen, zeker niet alleen uit vet.
Naarmate de beschikbaarheid van glycogeen afneemt, gaat je lichaam meer vet als brandstof gebruiken. Ook de ketonenproductie neemt toe.
Sommige mensen voelen zich in deze fase stabiel. Anderen merken meer honger, minder energie of veranderingen in focus. Dat is normaal en hangt af van je startpunt, slaap, stress en eerdere ervaring met vasten.
Op dag 4 en 5 raakt je lichaam beter aangepast aan het gebruik van vet en ketonen als energiebron. De spijsverteringsbelasting blijft lager en je lichaam bevindt zich in een andere metabole toestand dan normaal. Je komt in ketose.
Dat betekent niet dat iedereen zich hetzelfde voelt. De meeste mensen voelen zich helderder, scherper en energieker, terwijl anderen soms nog steeds minder energie ervaren. Naarmate iemand vaker in ketose is gekomen, komt die persoon sneller en makkelijk in ketose en voelt het ook steeds beter.
De fase na het programma is ook belangrijk. Na 5 dagen vasten of fasting mimicking moet het lichaam weer opbouwen. Glycogeenvoorraden worden aangevuld. Een deel van het “watergewicht” komt daarmee ook terug. Eiwitinname wordt opnieuw belangrijker. Ook training moet geleidelijk worden opgebouwd.
Wanneer je 5 Day Fast periodiek gebruikt, kan het bijdragen aan vooruitgang op langere termijn. Juist in de periode direct na de 5 dagen is het vaak makkelijker om oude gewoontes aan te passen en nieuwe gewoontes als standaardgedrag te verankeren.

The results
What results can you realistically expect with 5 Day Fast?
Some participants lose up to 6 kg after the 5 days. Part of that is due to the loss of glycogen and water. As the program progresses, your body uses more and more fat as an energy source.
5 Day Fast also helps you to take a step back from certain eating habits. For some people, the structure makes it easier to become more aware of snacking, portion sizes, cravings and routine behaviour around food.
Realistic results could be:
• weight loss during the 5 Day Fast, which varies per person
• more use of fat as an energy source
• a structured break from old eating habits
How much of the results you keep depends on your starting point and what you do after the 5 days. Results vary per person. 5 Day Fast doesn't guarantee fat loss, better sleep or a specific number on the scales. The programme is most valuable when the 5 days are followed by good nutrition, enough protein, exercise and recovery. Those who repeat 5 Day Fast periodically and use the time in between to build healthy habits usually get the most out of it.
what do participants notice
Reviews & Experiences
who can do this?
Who is 5 Day Fast suitable for?
5 Day Fast might be suitable for people who want to do a structured 5-day fast without completely stopping eating, and in doing so, are looking to improve their short and long-term health.
It might be relevant for:
people who want to follow a structured 5 Day Fast programme
people who want to support fat burning
people who want to break certain eating habits
people looking for an alternative to water fasting
people looking for an alternative to Sportvasten
people who are interested in metabolic health
people who are consciously working on healthy ageing
athletes who want to improve their performance
5 Day Fast is scientifically backed and developed to make the fasting process more controlled, practical, and easier to fit in with all the other things you do for your health.














