Calcium deficiency, not sodium excess, is an overlooked link in hypertension (high blood pressure) likely due to overstimulation of parathyroid hormone (PTH). Don’t forget your dairy products and egg shells. Hypertension. 2000 May;35(5):1154-9. Relation between low calcium intake, parathyroid hormone, and blood pressure. Jorde R, Sundsfjord J, Haug E, Bonaa KH. Source Department of Medicine, [...]