<p><b>Richmond Township</b> is a <a href=/pages/w/132303173474206>civil township</a> of <a href=/pages/w/112665105412526>Macomb County, Michigan</a>, United States. At the <a href=/pages/w/113048572054318>2000 census</a>, the township population was 3,416.
Dietary sodium is a major determinant of urinary calcium loss (1) . High-sodium intake results in increased loss of calcium in the urine, possibly due to competition between sodium and calcium for reabsorption in the kidneys or by an effect of sodium on parathyroid hormone (PTH) secretion.
Although both sodium and potassium oxalate salts are water soluble, calcium oxalate is practically insoluble, which is why calcium oxalate, when present in high enough levels, has the propensity to precipitate (or solidify) in the kidneys or in the urinary tract to form calcium oxalate crystals.