Was trying to refresh my memory on Biochemistry and found this.

The Metabolic Effects of Low-carbohydrate Diets and
Incorporation into a Biochemistry Course
http://onlinelibrary.wiley.com/doi/...94033022445/pdf

Is old but is not a bad read.

Quote on
Certainly the kidneys work
harder and excrete more nitrogen when protein is elevated
in the diet; however, the only changes researchers have
observed associated with low-carbohydrate diets have
been limited to increased glomerular filtration (considered
benign) and lower calcium levels
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This is why I said when you eat chicken bone-in or other meats bone-in, slow cook them and eat joints and bones if possible.

FYI, healthy recipes I love;
Baking soda(Sodium bicarbonate) + psyllium hydrophilic mucilloid => Sodium + Carbonate + fiber

Slow cook greasy meat bone-in tomato soup => calcium, joints, protein + fat + some carb + NaCl(some) + potassium + oiled lycopene

Supermarket 8 piece fried chicken => calcium, joints, protein + fat + some carb + NaCl(some)

Do not over rely on over counter calcium tablets.