Frequently asked questions

No. BioRitam 21 has no live one-to-one sessions. You can send questions during the program, and we answer them once a week in a recorded lesson for all participants, without your name.

The guide "Fasting by the body clock" is a PDF with Orthodox fasting meal plans and meal timing that you download right away and use on your own. BioRitam 21 runs for 21 days in a group with a fixed start date: each day you get a lesson, your daily rhythm and a short check-in. Prices are listed on each product page.

For customers in the EU, Serbia, the UK, Switzerland and Norway the seller is Link, a Stripe brand, so your invoice arrives by email as a PDF marked "Sold through Link". On your bank statement the charge starts with LINK.COM*. For customers in Bosnia and Herzegovina, Montenegro and North Macedonia we issue the invoice ourselves.

You pay on Stripe's checkout page by card, Apple Pay, Google Pay or Link. The price may be shown in your local currency. We never see or store your card details.

Distance purchases come with a 14-day right of withdrawal. For digital content that right ends once delivery starts, if you expressly agreed to immediate delivery on the checkout page. BioRitam 21 also has a guarantee: we refund you if you ask no later than 14 days after your group starts. The conditions and the form are on the Right of withdrawal page.

No. You can see your map on screen without an email, download it as an image or add reminders to your phone's calendar. If you leave your email, we send you the print version of your map and a few short emails about your rhythm, once you confirm by clicking the link in our email. You can unsubscribe with one click from any email.

Your map is calculated in your browser and your answers stay on your device. If you leave your email, we send with it only the map code (wake and sleep times), your goal, your chronotype and whether you work shifts, so the tips in our emails fit you. Your answer about your cycle or perimenopause never leaves your device. We do not sell your answers or send them to advertisers.

The Rhythm Map is a free quiz of about 2 minutes, with 8 to 10 questions about your sleep, work, meals, coffee and training. At the end you get a 24-hour map suggesting when to eat, get light, drink coffee, train and go to bed, plus three recommendations for you.

Yes. Everyone has a body clock, and for readers who care about focus at work and steady energy there is a dedicated section, Focus and energy. BioRitam 21 is the same program for men and women. Only the Rhythm Map question about the menstrual cycle and perimenopause is meant for women, and it is optional.

BioRitam is an educational site about when to eat, sleep and get light in time with your body clock. We focus on daytime energy, sleep and steadier blood sugar. We offer a free Rhythm Map, a digital guide for Orthodox fasting and the 21-day program BioRitam 21.

The content is written by the BioRitam editorial team (Redakcija BioRitam). We do not have a named expert or reviewer yet, so every important claim comes with a source and a rating of how well it is supported. When an expert joins us, their name will appear on the texts they reviewed.

No. BioRitam explains what research says about meal timing, sleep and light. We do not diagnose, treat or advise on medication, so please see a doctor about any health problem.

Yes. The guide "Fasting by the body clock" is built for fasting, with fasting meal plans and meal timing, and the Nativity Fast starts on 28 November. Recipes on the site are labelled by fasting level: water only, with oil, or with fish. For religious questions about fasting, talk to your spiritual father.

Talk to your doctor before changing your meal timing or fasting. The same applies if you are breastfeeding, have had an eating disorder or take medication regularly. Our content is general education and is not adapted for pregnancy or diabetes treatment.