I completed a 7 day water fast about a month ago. For the first time in my life managed to break 70kg/154lbs barrier(30M,5'5) lost about 3.5kg/7.5lbs during that week. First day or two are tough due to cravings, best way to counteract that is to supplement with multivits, electrolytes and nutritional yeast, dissolved in water(for vitamin B). Once ketosis is in full gear, you will get used to it (around day 3) and feel an amazing euphoric energy. Sleep is another thing to factor in, sleep quality will be impacted during the first couple of days so brace yourself.

Also be careful when refeeding[1], I had bone broth to wake my digestive system slowly, then moved onto complex food within hours.

Would I do it again? absolutely!!

[1]https://en.wikipedia.org/wiki/Refeeding_syndrome

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