How to fast

Find the right fasting program
to fit your goals & lifestyle

Why fast?

The reality is that humans have always fasted. In prehistoric times, we often went days between eating because we simply couldn’t find food. Over millions of years, we evolved to not only handle the threat and stress of not eating - we thrived. Why? Because prolonged fasting – and only fasting – triggers our amazing, natural cell clean up and rejuvenation process. This helps us live longer and healthier.

Yes, we now live in a world in which food is available 24 hours a day, 7 days a week. But nature, science, and evolution tell us that we’re built to fast.

What is fasting?


Explore the types of fasting and their benefits

Intermittent Fasting

Intermittent fasting is the #1 fast in the UK because it’s simple and it works. It refers to fasts that are two days in a row or less.

The most common approaches are “time restricted eating” methods, such as the 16:8 method (16 hours spent fasting, 8-hour window of eating), the 14:10 method (14 hours spent fasting, 10 hour window of eating), and the 12:12 method (12 hours spent fasting, 12 hour window of eating).

Another example is the 5:2 method, with five days of regular eating coupled with two days of fasting. Intermittent fasts are an excellent way to lose weight, reset your metabolic health and improve your mental clarity.

Prolonged Fasting

Prolonged fasting refers to fasts that are over two consecutive days. Scientists believe that your body starts the cell recycling up and rejuvenation process on day 3 of a prolonged fast.

This process helps your cells renew themselves and act like younger cells. Prolonged fasts are a quick way to lose weight and belly fat, reset your metabolic health, enhance your mental clarity and energy, and get better eating habits. And, through the cell rejuvenation process, prolonged fasts can unlock profound, transformative benefits.

Cell rejuvenation can enable you to live a better, fuller life throughout your years.

What is Autophagy?

What is Ketogenesis?

The Fasting Effect

Healthy Aging

As you age, your cells slow down and become inefficient. But prolonged fasting triggers “autophagy”, your cells’ self-cleaning and rejuvenation process, helping them renew themselves and act like younger cells. This can enable you to live a better, fuller life throughout your years.

Supports Metabolic Health

Maintain healthy levels of metabolic balance. Transform your lifestyle & eating habits.

What Happens to Your Body while Fasting?

Prolonged fasts unlock the deepest level of fasting. It triggers your body’s natural way of cleaning house. Your cells clean and recycle old and damaged parts, resulting in a profound benefit: cell rejuvenation. Your cells renew themselves and act like younger cells.

Enter Fasting State:

Your body transitions into a fasting state & fat burning mode.

Fat Burning & Ketogenesis:

Fat burning ramps up, contributing to the start of ketogenesis (ketone production). By the end of Day 2, ketosis may occur.

Autophagy / Cell Recycling State:

Cell optimization begins. Fat burning and ketone production / utilization continues.

Cell Rejuvenation:

Cell recycling and renewal and fat burning continues.

Renewal & Change:

Cell renewal and change continues after you complete the fast

The practice of fasting involves calorie restriction.

Do not start a fast if:

• During this period of COVID-19, if you are over 65 years of age, or are in a high-risk category.

• If you have a diagnosis of or are on a prescription for diabetes (type 1 or type 2), cancer, or congestive heart failure, or you have a history of fainting, fast only with the approval and supervision of a healthcare practitioner.

• If you have a fever, cough, diarrhea, signs of an active infection, or are at risk for a repetitive infection.

• You are underweight, pregnant, or breastfeeding.

• If you have a known, diagnosed, or suspected eating disorder.

• You are under 18 years of age over the age of 70.

• You have dietary restrictions

• You are underweight or do not want to lose weight - during the fasting period, an individual will naturally lose 2-5% of his/her body weight