Best trick IMO is to take prebiotic fiber while fasting. That way your gut bacteria gets fed and doesn’t get desperate to tell your brain you’re starving. Per

Best trick IMO is to take prebiotic fiber while fasting. That way your gut bacteria gets fed and doesn’t get desperate to tell your brain you’re starving. Personally I don’t feel ketogenic state is reached from 16 hours. Feels like I need at least 24 hours, but usually do 36. Only thing I need other than water is electrolytes. I would get bad headaches without my mineral/pink salt.