thanks jeroen. I guess i was more curious on the differences of body mass, muscle vs fat and metabolic rate. I have higher metabolic rate, low bone density and higher fats. My sister on the hand has more muscle and low fats, lower metabolic rate, high bone density,  and often has different reaction. Jack i guess has high bone density, lean with barely much fats and high metabolic rate hence curious on the different outcomes. Some of us here do the sea salt + distilled water so i don't know how the mineral loss impacts the body during fasting as I have never measured it.