Calcium Sources - Milk and Dairy products, tofu, greens and legumes are all good sources of calcium. The remainder is found in body fluids and in the genetic material in cells. Physiological functions of Phosphorus phosphorous as phosphate serves as a buffer in the blood, to help control pH. phosphorous in ATP, a triphosphonucleotide, delivers energy in all body processes. Physiological functions of Magnesium - serves as a cofactor for many enzymes factor in the metabolism of potassium, calcium and Vitamin D serves as the muscle relaxing factor after contraction holds calcium in tooth enamel May help to prevent risk of heart failure, by helping to regulate heartbeat. We obtain our needed sodium from table salt.
Salt is also a widely used preservative.
One theory has it that in the middle ages people ate so much salt from their preserved foods that were thirsty all of the time. Since the water at that time was not pure, they turned to beer to slake their thirsts. Most guidelines recommend reducing sodium intake Sodium Sources - ubiquitous, it is found in all foods and on most dinner tables. Potassium 302 Potassium is one of the most abundant positively charged ions in the body. Low potassium is dangerous because loss of potassium from brain cells makes the victim unaware of the need for water.