Fasting & Reset: what happens, who it suits, costs and the best destinations

Therapeutic fasting has been practised in European clinics for a century, usually as a supervised programme of five to ten days on broth, juice and tea with daily walks, rest and medical checks. Research on fasting and time-restricted eating suggests benefits for metabolic markers, blood pressure and inflammation, and many people report better sleep and a lasting change in how much they want to eat. The risks are equally real: fasting without supervision, with certain medications or with a history of eating disorders is dangerous. This journey belongs in a clinic or a properly run centre.

Two traditions dominate. The European clinic model, with Marbella and the German lakes as its historic centres, combines fasting with diagnostics, walks and rest. The Ayurvedic model in Kerala uses simple food rather than no food, plus oil treatments and rest over two to three weeks. Retreats in Bali and elsewhere offer juice fasts of varying seriousness; check who is in charge. The gentler version, a week of Blue Zone eating and hara hachi bu in Okinawa or Ikaria, is a reset without the risk.

Best places for this journey

Where a fasting stay works best.

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Spain · Costa del Sol, Andalusia

Marbella

320 days of sun, sea walks and the fasting and longevity clinics of Europe

Mar · Apr · MayTo the destination

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India · Malabar Coast

Kerala

backwaters, monsoon rains and a 3,000-year-old system of care

Oct · Nov · DecTo the destination

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Indonesia · Central Bali

Ubud

rice terraces, morning yoga and the rhythm of ceremonies

Apr · May · JunTo the destination

Blue Zone83

Japan · East China Sea

Okinawa

hara hachi bu, moai circles and gardens by the sea

Mar · Apr · MayTo the destination

Blue Zone83

Greece · North Aegean

Ikaria

late nights, long naps and wild mountain herbs

May · Jun · SepTo the destination

Good to know

Before you book.

Talk to your doctor before booking. Bring your medication list and recent blood work to the clinic.
The days before and after matter as much as the fast: reduce coffee, alcohol and sugar for a week before, and break the fast slowly.
Expect the second and third day to be hard and the fourth to be surprisingly clear.
The lasting benefit is the smaller plate afterwards. Plan how you will eat at home before you leave.

Try it

Longevity DaySet your wake time, sleep target, eating window, movement and wind-down, and the tool lays out a day built on the six pillars: light first, food in a window, movement before lunch, dark before bed.Vitality ScoreSleep, steps, strength, plants, alcohol, friends, purpose, stress, daylight and breath.Retreat BudgetChoose a destination, the nights, the level of stay, how often you eat out, how many treatments and whether flights are included.

Frequently asked questions

Is fasting safe?

Supervised fasting in a clinic is safe for most healthy adults. Unsupervised long fasts, fasting with certain medications, diabetes, pregnancy, low weight or a history of eating disorders are not. Ask a doctor first.

What is the difference between a fasting clinic and a detox retreat?

A clinic has physicians, daily checks and a medical protocol. A retreat may have none of these. The word detox is unregulated; the word clinic is not.

What is time-restricted eating?

Eating within a window of eight to ten hours a day and fasting the rest, usually by having an early dinner and a late breakfast. It is the everyday version of fasting and a habit most Blue Zones follow without naming it.

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