Muscle mass loss: magnesium deficiency. Liquid assimilates better: chrloride magnesium. The taste is terrible, to dilute it in a full glass of water helps a great deal.
NO carbs diet means your body is relying on fat to produce energy.... soooooooooooo Extra virgin olive oil, linseed oil and salmon oil with every meals are VERY important.
Poor absorption is another factor: eat more raw veggies, more soup, and avoid all the food you are allergice to. Look into your stool, if you see undigested food in there, not only are you feeding fungus and bacteria, but irritating the bowels which will inpair absorption'