24-Hour Fast — Monthly
One full 24-hour water-only fast per month, dinner to dinner. Practises metabolic flexibility and gives the digestive system a deeper reset than daily TRE.
Do one full 24-hour water-only fast per month, dinner to dinner, to practise metabolic flexibility and give the digestive system a deeper reset than daily time-restricted eating. Refeed afterwards with a normal balanced meal — no binge.
Watch the 22-second version
Once a month, I skip a full day of food — dinner to dinner, water and plain tea or coffee only.
Transcript & sources → All videosMr. Age is AgeGen's editorial character. Facts come from the protocol above.
The protocol
- Intake: water, plain tea / coffee.
- Refeed: normal meal, no binge.
- Duration: 24 h.
- Frequency: monthly.
- Prerequisites: healthy adult, stable blood sugar.
What you get
- Metabolic flexibility — training the body to switch fuel sources.
- A digestive reset that goes deeper than daily time-restricted eating.
- An autophagy signal during the fasted window.
Contraindications
- Pregnancy.
- Active eating disorder.
- Type 1 diabetes.
- Underweight.
- Medication that requires food.
Evidence level
Medium. There is reasonable supporting evidence for intermittent and periodic fasting; treat a monthly 24-hour fast as a sensible experiment rather than a guaranteed result.
Related protocols
Sources
AgeGen never invents studies and never recommends prescription drugs by brand. Biohacks are experiments, not prescriptions — honour the contraindications and talk to a clinician if a condition above applies to you.
