Sodium salts of phosphoric acid. Normal constituent of the body. Commercially produced from phosphoric acid, which is produced from mined phosphate.
Function & characteristics:
Sodium phosphate is an acidity regulator and chelating agent (used to bind metal ions). It prevents desiccation and is used as an acid stabiliser in powders as well as to prevent formation of clumps. It increases the activity of antioxidants.
Many different products.
Acceptable Daily Intake:
Up to 70 mg/kg body weight. Phosphate intake (expressed as phosphorus) should not be more than 4 grams per day for adults younger than 70 years of age and 3 grams per day for people who are older.
Phosphates are normal essential salts for the body. In view of the need to avoid calcium deficiency, their use is limited, as they bind up calcium readily. They normally have no side effects, however in some people it can irritate the digestive tract.
Phosphoric acid and phosphates can normally be consumed by all religious groups, vegans and vegetarians. Although animal bones are mainly made up of phosphates, commercial phosphate is not made from bones.
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