Variant Title

5 Day Fast Programme

5 Day Fast Programme

€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

Variant Title

Ordered Mon to Fri before 18:00, sent the same day.

Free home delivery

100% Vegan

Bundle discount

Duo discount
Two 5 Day Fast programmes
Most popular
Duo discount
€218.00
€238.00
Save €20
Triple discount
Three 5 Day Fast programmes
Triple discount
327.00
€357.00
Save €30

Bundle discount

Duo discount
Two 5 Day Fast programmes
Most popular
Duo discount
€218.00
€238.00
Save €20
Triple discount
Three 5 Day Fast packs
Triple discount
€327.00
€357.00
Save €30

Bundle discount

Duo discount
Two 5 Day Fast programmes
Most popular
Duo discount
€218.00
€238.00
Save €20
Triple discount
Three 5 Day Fast programmes
Triple discount
327.00
€357.00
Save €30

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From click to fast

What happens after you've ordered 5 Day Fast?

What happens after you've ordered 5 Day Fast?

""
1

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.

""
2

Get your menu, recipe book and shopping list

As soon as your menu has been created, you'll receive your personal menu, recipes, shopping list and instructions by email in a PDF. This way you'll know exactly what you're eating, what you

need to buy and how to prepare yourself for the 5 days.

Once your menu has been created, you'll receive your personal menu, recipes, shopping list and instructions by email in a PDF. This way you'll know exactly what you're eating, what you need to buy and how to prepare for the 5 days.

""
3

Get your supplements delivered to your home

The supplements for 5 Day Fast will be delivered to your home. In the box, you'll also find a

handy checklist to help you prepare well and follow the protocol correctly.

Orders placed from Monday to Friday before 18:00 are shipped the same day.

The supplements for 5 Day Fast will be delivered to your home. In the box, you'll also find a handy checklist to help you prepare well and follow the protocol correctly.

Orders placed from Monday to Friday before 18:00 are dispatched the same day.

""
4

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.

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The pack

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The pack

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.

Multivitamin

The multivitamin contains a carefully formulated blend of essential vitamins and minerals. This helps to support your intake of important micronutrients during the 5 Day Fast protocol. Supplied by Vitals.

Multivitamin

The multivitamin contains a carefully formulated blend of essential vitamins and minerals. This helps to support your intake of important micronutrients during the 5 Day Fast protocol. Supplied by Vitals.

Multivitamin

The multivitamin contains a carefully formulated blend of essential vitamins and minerals. This helps to support your intake of important micronutrients during the 5 Day Fast protocol. Supplied by Vitals.

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The programme

What is the 5 Day Fast programme?

What is the 5 Day Fast Programme?

30+

Years of supporting science

5 Day Fast is a structured 5-day fasting mimicking programme with a personal menu based on specific allowed foods and the supplements for all five days. During 5 Day Fast you don't stop eating completely. You follow a clear nutrition plan that's been developed to mimic certain effects of fasting, while your body gradually starts using more fat as an energy source. You leave out caffeine completely for these five days, so your body gets a temporary break from daily stimulation.

5 Day Fast Programme | 5 Day FastGrafiek van het 5 Day Fast programma: de calorie inname daalt vanaf dag 1, terwijl de metabole flexibiliteit dag na dag stijgt. Rond dag 3 kruisen de lijnen en schakelt het lichaam over op vetverbranding; op dag 4 en 5 bereikt het lichaam de ketose staat.Calorie inname12345Metabole flexibiliteitKetose staat
In 5 dagen van dalende calorie inname naar metabole flexibiliteit en ketose staat.

The goal is to temporarily put you into a different metabolic state. This happens automatically when you don't get enough energy. That state is linked to various health-related mechanisms, including fat burning, ketosis, metabolic flexibility, insulin sensitivity and cellular repair processes.

These mechanisms might contribute to short-term benefits such as weight loss, gut health, sport performance and more. It also always helps with your long-term health.

From a personalised menu to an efficient reset, read more about how 5DF can work for you.

5 Day Fast is a structured 5-day fasting mimicking programme with a personal menu based on specific allowed foods and the supplements for all five days. During 5 Day Fast you don't stop eating completely. You follow a clear nutrition plan that's been developed to mimic certain effects of fasting, while your body gradually starts using more fat as an energy source. You leave out caffeine completely for these five days, so your body gets a temporary break from daily stimulation.

5 Day Fast Programme | 5 Day FastGrafiek van het 5 Day Fast programma: de calorie inname daalt vanaf dag 1, terwijl de metabole flexibiliteit dag na dag stijgt. Rond dag 3 kruisen de lijnen en schakelt het lichaam over op vetverbranding; op dag 4 en 5 bereikt het lichaam de ketose staat.Calorie inname12345Metabole flexibiliteitKetose staat
In 5 dagen van dalende calorie inname naar metabole flexibiliteit en ketose staat.

The goal is to temporarily put you into a different metabolic state. This happens automatically when you don't get enough energy. That state is linked to various health-related mechanisms, including fat burning, ketosis, metabolic flexibility, insulin sensitivity and cellular repair processes.

These mechanisms might contribute to short-term benefits such as weight loss, gut health, sport performance and more. It also always helps with your long-term health.

From a personalised menu to an efficient reset, read more about how 5DF can work for you.

5 Day Fast Programme | 5 Day FastGrafiek van het 5 Day Fast programma: de calorie inname daalt vanaf dag 1, terwijl de metabole flexibiliteit dag na dag stijgt. Rond dag 3 kruisen de lijnen en schakelt het lichaam over op vetverbranding; op dag 4 en 5 bereikt het lichaam de ketose staat.Calorie inname12345Metabole flexibiliteitKetose staat
In 5 dagen van dalende calorie inname naar metabole flexibiliteit en ketose staat.

From a personalised menu to an efficient reset, read more about how 5DF can work for you.

From a personalised menu to an efficient reset, read more about how 5DF can work for you.

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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.

5 Day Fast Programme | 5 Day FastTijdlijn van dag 1 tot na de 5 dagen. Glycogeen daalt, vetverbranding stijgt en ketonen nemen vooral tussen dag 3 en 4 toe, met een piek op dag 5: ketose. Na de 5 dagen vullen de glycogeenvoorraden weer aan en dalen de ketonen.GlycogeenVetverbrandingKetonen12345na de 5 dagenvooral water + glycogeen, geen vetketonen nemen toeketoseopbouw: glycogeen vult weer aan
Brandstofmix tijdens 5 Day Fast: glycogeen daalt, vetverbranding en ketonen nemen toe richting ketose op dag 5, en na de 5 dagen vult glycogeen weer aan.

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.

5 Day Fast Programme | 5 Day FastTijdlijn van dag 1 tot na de 5 dagen. Glycogeen daalt, vetverbranding stijgt en ketonen nemen vooral tussen dag 3 en 4 toe, met een piek op dag 5: ketose. Na de 5 dagen vullen de glycogeenvoorraden weer aan en dalen de ketonen.GlycogeenVetverbrandingKetonen12345na de 5 dagenvooral water + glycogeen, geen vetketonen nemen toeketoseopbouw: glycogeen vult weer aan
Brandstofmix tijdens 5 Day Fast: glycogeen daalt, vetverbranding en ketonen nemen toe richting ketose op dag 5, en na de 5 dagen vult glycogeen weer aan.

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.

5 Day Fast Programme | 5 Day FastTijdlijn van dag 1 tot na de 5 dagen. Glycogeen daalt, vetverbranding stijgt en ketonen nemen vooral tussen dag 3 en 4 toe, met een piek op dag 5: ketose. Na de 5 dagen vullen de glycogeenvoorraden weer aan en dalen de ketonen.GlycogeenVetverbrandingKetonen12345na de 5 dagenvooral water + glycogeen, geen vetketonen nemen toeketoseopbouw: glycogeen vult weer aan
Brandstofmix tijdens 5 Day Fast: glycogeen daalt, vetverbranding en ketonen nemen toe richting ketose op dag 5, en na de 5 dagen vult glycogeen weer aan.

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.

5 Day Fast Programme | 5 Day FastTijdlijn van dag 1 tot na de 5 dagen. Glycogeen daalt, vetverbranding stijgt en ketonen nemen vooral tussen dag 3 en 4 toe, met een piek op dag 5: ketose. Na de 5 dagen vullen de glycogeenvoorraden weer aan en dalen de ketonen.GlycogeenVetverbrandingKetonen12345na de 5 dagenvooral water + glycogeen, geen vetketonen nemen toeketoseopbouw: glycogeen vult weer aan
Brandstofmix tijdens 5 Day Fast: glycogeen daalt, vetverbranding en ketonen nemen toe richting ketose op dag 5, en na de 5 dagen vult glycogeen weer aan.
5 Day Fast Programme | 5 Day FastTijdlijn van dag 1 tot na de 5 dagen. Glycogeen daalt, vetverbranding stijgt en ketonen nemen vooral tussen dag 3 en 4 toe, met een piek op dag 5: ketose. Na de 5 dagen vullen de glycogeenvoorraden weer aan en dalen de ketonen.GlycogeenVetverbrandingKetonen12345na de 5 dagenvooral water + glycogeen, geen vetketonen nemen toeketoseopbouw: glycogeen vult weer aan
Brandstofmix tijdens 5 Day Fast: glycogeen daalt, vetverbranding en ketonen nemen toe richting ketose op dag 5, en na de 5 dagen vult glycogeen weer aan.
Top-down view of the full 5 Day Fast package: supplement sachets including Multivitamine, Magnesium, NAC, and Spirulina, surrounded by fresh veg, fruit, and herbs, next to a canvas bag with the Five Day Fast logo.
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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.

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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.

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when you need to watch out

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when you need to watch out

When is the 5 Day Fast not suitable for you?

When is the 5 Day Fast not suitable for you?

Don't start
Check with a healthcare professional first
Pregnancy
✗
Breastfeeding
✗
Under 18
✗
Eating disorder or a history of an eating disorder
✗
Active, acute illness (fever)
✗
Medication use
✓
Diabetes or metabolic disorder
✓
Long-term stress or burn-out
✓
Injury or increased acute recovery need
✓
Chronic digestive issues + medication
✓
Don't start
Pregnancy
✗
Breastfeeding
✗
Under 18
✗
Eating disorder or a history of an eating disorder
✗
Active, acute illness (fever)
✗
Medication use
Diabetes or metabolic disorder
Long-term stress or burn-out
Injury or increased acute recovery need
Chronic digestive issues + medication
Check with a healthcare professional first
Pregnancy
Breastfeeding
Under 18
Eating disorder or a history of an eating disorder
Active, acute illness (fever)
Medication use
✓
Diabetes or metabolic disorder
✓
Long-term stress or burn-out
✓
Injury or increased acute recovery need
✓
Chronic digestive issues + medication
✓
Don't start
Check with a healthcare professional first
Pregnancy
✗
Breastfeeding
✗
Under 18
✗
Eating disorder or a history of an eating disorder
✗
Active, acute illness (fever)
✗
Medication use
✓
Diabetes or metabolic disorder
✓
Long-term stress or burn-out
✓
Injury or increased acute recovery need
✓
Chronic digestive issues + medication
✓
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FAQs

Frequently asked questions

I can easily imagine you might have questions about 5 Day Fast, just like many others who have already started the programme. That's why we've answered some frequently asked questions for you here, so you can get a good idea of what to expect and make your choice a bit more easily. Is your question not listed here? Then have a look at all the frequently asked questions. If your question is still not answered, no problem at all! Send us an email via support@5dayfast.nl, we're happy to help you out.

You get the supplements for the 5 days, access to your menu choice, a shopping list, a handy checklist with clear explanations and instructions, and an exercise plan to support you.

The aim is to prevent guesswork. You'll know what to take, what you can eat, what to buy, and how to structure the 5 days.

Yes, you can do 5 Day Fast together with your partner. You do both need your own 5 Day Fast programme, though. That's why we offer a duo discount: two programmes for €218 instead of €238.

After your order, you will receive one email with a link to put together your personal menu. If your order contains multiple programmes, you can use the same link multiple times. Are you both choosing the same menu? Then you simply double the quantities on the shopping list. Do you want different menus? Then each person fills in the form separately with their own name and email address.

You'll receive the menu choice link by email within a few minutes of your order. Use this link to choose your personal menu. Don't forget to check your spam folder too.

Ordering on workdays before 18:00? Then your package gets shipped the same day. Orders on Saturday mornings before 12:00 are also processed and shipped the same day.

As soon as your package has been shipped, you'll receive a Track & Trace code. PostNL usually delivers the next working day.

If you still haven't received your order after 7 working days, please get in touch with us at support@5dayfast.nl.

Yes, we also deliver to Belgium via the webshop.

Do you want to order from another European country? Then we might be able to manually create an order for you. Extra shipping costs may apply.

Get in touch with us via support@5dayfast.nl, so we can see what's possible.

Yes, you prepare your own meals.

The recipes are practical and easy to make. Do plan your shopping and meal prep before you start.

You can drink unlimited water and sparkling water during the 5 Day Fast.

Caffeine isn't allowed during the programme. That means no coffee, no energy drinks, and no caffeinated pre-workouts. Even decaf coffee isn't part of the programme.

Herbal infusions are allowed, as long as they don't contain tea leaves, green tea, black tea, or added caffeine.

No. 5 Day Fast is a structured 5-day programme, not a guarantee of a specific number on the scales. Weight loss, energy, sleep, hunger levels and sports performance differ per person.

Your results depend on your situation before the programme, sleep, stress, activity level, how closely you follow the programme and the phase after the programme.

Don't start if you are pregnant, breastfeeding, actively ill, have a fever, an injury, extreme stress or during a period of poor recovery.

Also don't start if you have a low BMI, an eating disorder, uncontrolled medical problems or if you're unsure about your medication.

In doubt? Then wait and consult a doctor or treating specialist first.

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FAQs

Frequently asked questions

I can easily imagine you might have questions about 5 Day Fast, just like many others who have already started the programme. That's why we've answered some frequently asked questions for you here, so you can get a good idea of what to expect and make your choice a bit more easily. Is your question not listed here? Then have a look at all the frequently asked questions. If your question is still not answered, no problem at all! Send us an email via support@5dayfast.nl, we're happy to help you out.

You get the supplements for the 5 days, access to your menu choice, a shopping list, a handy checklist with clear explanations and instructions, and an exercise plan to support you.

The aim is to prevent guesswork. You'll know what to take, what you can eat, what to buy, and how to structure the 5 days.

Yes, you can do 5 Day Fast together with your partner. You do both need your own 5 Day Fast programme, though. That's why we offer a duo discount: two programmes for €218 instead of €238.

After your order, you will receive one email with a link to put together your personal menu. If your order contains multiple programmes, you can use the same link multiple times. Are you both choosing the same menu? Then you simply double the quantities on the shopping list. Do you want different menus? Then each person fills in the form separately with their own name and email address.

You'll receive the menu choice link by email within a few minutes of your order. Use this link to choose your personal menu. Don't forget to check your spam folder too.

Ordering on workdays before 18:00? Then your package gets shipped the same day. Orders on Saturday mornings before 12:00 are also processed and shipped the same day.

As soon as your package has been shipped, you'll receive a Track & Trace code. PostNL usually delivers the next working day.

If you still haven't received your order after 7 working days, please get in touch with us at support@5dayfast.nl.

Yes, we also deliver to Belgium via the webshop.

Do you want to order from another European country? Then we might be able to manually create an order for you. Extra shipping costs may apply.

Get in touch with us via support@5dayfast.nl, so we can see what's possible.

Yes, you prepare your own meals.

The recipes are practical and easy to make. Do plan your shopping and meal prep before you start.

You can drink unlimited water and sparkling water during the 5 Day Fast.

Caffeine isn't allowed during the programme. That means no coffee, no energy drinks, and no caffeinated pre-workouts. Even decaf coffee isn't part of the programme.

Herbal infusions are allowed, as long as they don't contain tea leaves, green tea, black tea, or added caffeine.

No. 5 Day Fast is a structured 5-day programme, not a guarantee of a specific number on the scales. Weight loss, energy, sleep, hunger levels and sports performance differ per person.

Your results depend on your situation before the programme, sleep, stress, activity level, how closely you follow the programme and the phase after the programme.

Don't start if you are pregnant, breastfeeding, actively ill, have a fever, an injury, extreme stress or during a period of poor recovery.

Also don't start if you have a low BMI, an eating disorder, uncontrolled medical problems or if you're unsure about your medication.

In doubt? Then wait and consult a doctor or treating specialist first.