YO: Ayuno Intermitente Seguro

YO is the safe and progressive intermittent fasting app, developed with rigorous clinical evidence to teach you the art of eating fewer times a day, without feeling hungry and while protecting your muscle mass.

Unlike other apps that promote aggressive protocols from day one, YO guides you with a 4-phase physiological method to help your body activate the natural metabolic shift (from burning glucose to oxidizing fatty acids) without experiencing the "fasting flu" or anxiety.

WHY CHOOSE YO?

• SMART METABOLIC CHRONOMETER: Monitor your fasting hours and discover which energy substrate your body is using in real time (digestion, insulin drop, ketosis, and cellular autophagy).

• 28-DAY PROGRESSIVE PLAN:

- Week 1: Close the kitchen after dinner (no late-night snacking).

- Weeks 2 and 3: Consolidate the 12:12 circadian fasting pattern.

- Week 4: Moderate expansion to 14:10 or 16:8 depending on your energy level and comfort.

• THE PROTEIN PLATE RULE (~30g): Learn to break your fast by nourishing your cells. We'll teach you how to structure rebuilding meals with ~30g of high-quality protein and plant fiber to prevent muscle loss and avoid reactive glucose spikes.

• THE CLEAN FASTING PROTOCOL: All the science behind why water, black coffee, and unsweetened tea keep your digestive system active, and why you should avoid artificial sweeteners that trigger the insulin response in your brain.

• PHYSIOLOGICAL HYDRATION BY THIRST: Forget about forcing yourself to drink unnecessary liters of water that dilute your electrolytes. Learn to monitor your hydration using the urine color scale and ensure adequate mineral replacement.

• SOS SAFETY BUTTON: Your well-being always comes first. If you experience postural dizziness, weakness, or suspect hypoglycemia, the SOS button provides immediate medical advice and helps you safely break your fast.

• INTEGRATED CLINICAL LIBRARY: Clearly written articles on women's hormonal health, fasting exercise, type 2 diabetes, and safe medications.

• 100% PRIVATE: All your fasting logs, schedules, and notes are stored locally on your phone. We do not sell your personal data.

IMPORTANT MEDICAL NOTICE: Yo is an educational and wellness tool. It is not a substitute for medical consultation or diagnosis. Intermittent fasting is strictly contraindicated for individuals under 18 years of age, people with a history of eating disorders, pregnant or breastfeeding women, or those with malnutrition.