Steve
It takes 12 hours for your body to be fully in ketosis so I personally do 16/8 (16hrs fast and eat in a daily 8 hour window 5 days per qeek).If you're starting out I'd do 12/12 first then build towards 16/8.
¿Es mejor ayunar 12 o 16 horas? ¿Es beneficioso para el cuerpo ayunar durante tantas horas?