Fasting as part of your own rhythm
A clearer meal rhythm, less constant snacking and more space to focus on your day. NAVO encourages you to try fasting as part of everyday life, provided it suits your health and life circumstances.
The app includes a dedicated fasting timer.
What can fasting bring to everyday life?
Fasting gives eating a simple structure: nourishing meals with clear breaks between them. It helps some people reduce snacking and supports weight management and blood glucose regulation.
Some people who fast report feeling more energetic, thinking more clearly and concentrating better. Notice what happens in your own daily life: how much energy you have, how hunger feels and how you recover.
A break between meals gives your digestive system time to process food you have already eaten without constantly receiving new meals. As the break gets longer, your body uses more stored energy. This relates to metabolic flexibility — the body's ability to switch between carbohydrates and fats as sources of energy according to food availability and activity.
Fasting may also affect autophagy — the cells' natural recycling process, in which they break down and reuse damaged or unnecessary components. Changes in the gut microbiome and blood markers of inflammation have also been observed in connection with fasting, but the effects are not the same for everyone.
Understand your hunger
Fasting is one way to practise managing hunger and get to know your body's signals. The first few weeks can feel challenging if you are used to eating or snacking frequently. Many people find it easier as the new rhythm becomes established. The goal is manageable hunger and enough energy for your day.
Hormones also influence hunger. Ghrelin helps trigger hunger and is linked to familiar meal times. Leptin tells the brain about the body's energy stores and contributes to the long-term regulation of appetite.
Start with an overnight break between meals. End your fast with an adequate, varied meal and let your rhythm adapt to activity, hunger and recovery.
Remember hydration
Keep water part of your routine while fasting. Drink regularly and take activity, sweating and hot weather into account.
Pay attention to your electrolyte intake as part of the overall picture. Sodium, potassium and magnesium support fluid and electrolyte balance, as well as muscle and nerve function.
Who is fasting unsuitable for?
NAVO does not recommend fasting during pregnancy or breastfeeding, for children or adolescents, or for people with an eating disorder or a history of one. Being underweight, having a chronic illness or taking medication calls for an individual assessment. Do not adjust diabetes medication on your own.
Take your menstrual cycle into account and make sure you get enough nutrition. If your period brings fatigue, pain or weakness, postpone trying fasting until your symptoms have eased.
Too little energy relative to your needs can disrupt your cycle. If your periods become noticeably irregular or stop, contact a healthcare professional.
Longer fasts and people's experiences
Food has not always been continuously available throughout human history. Long breaks between meals have also been part of life, and the body can use its energy stores when food is unavailable.
Participants in supervised fasting programmes have reported improved physical and psychological well-being, as well as low levels of hunger.
Longer fasts are considered occasionally, rather than as a weekly habit. Learn more about the subject before attempting longer fasts.
Sources & further reading
This guide provides general information and practical tips. It does not replace individual nutrition guidance or medical advice.
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NAVO Oy is a Finnish wellness company building practical tools and products to support healthier everyday living. Our goal is to make well-being easier to understand, more approachable and more sustainable.
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