{"ok":true,"entry":{"slug":"phosphorus","kind":"supplement","name":"phosphorus","aliases":["phosphate","dicalcium phosphate"],"brands_sg":["Eidon Ionic Minerals","Boiron"],"class":"mineral","tags":["bone-joint","energy"],"use_for":"bones and teeth; part of atp, dna and cell membranes","use_after":null,"use_duration":null,"take_with":null,"pros":["rda is 700 mg — most people already exceed it from food","phosphate salts are about 70% absorbed","deficiency is rare and almost never dietary"],"cons":["sg cap of 800 mg sits under the us dv of 1,250 mg","additives add 300–1,000 mg a day on top of food","as kidney function falls, phosphate rises"],"dose_note":"the adult rda is 700 mg a day and most supplements provide 10% or less of the 1,250 mg dv; singapore caps supplements at 800 mg a day","dosage":{"ul":4000,"unit":"mg","fda_dv":1250,"rda_ai":700,"ul_status":"established","population":"general adult","hsa_max_daily":800},"ul_status":"established","sg_class":null,"cautions":["chronic kidney disease — phosphate is excreted less efficiently; ask your doctor first","on aluminium-hydroxide antacids — chronic use can lower phosphate","sodium phosphate laxatives — fda warned about more than label doses","over 4,000 mg a day (3,000 mg from 71) — above the upper limit"],"clashes":[{"src":["ods_phos_drugs"],"note":"bind phosphorus in the intestines; chronic use for 3 months or longer can lead to hypophosphatemia","with":"antacids containing aluminium hydroxide"},{"src":["ods_phos_drugs"],"note":"also decrease intestinal absorption of dietary phosphorus","with":"antacids containing calcium carbonate"},{"src":["ods_phos_drugs"],"note":"ingesting these products can increase serum phosphate levels","with":"sodium phosphate laxatives"}],"sources":[{"id":"ods_phos_intro","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet for Health Professionals (Updated: May 4, 2023), Introduction","quote":"Phosphorus is a component of bones, teeth, DNA, and RNA. In the form of phospholipids, phosphorus is also a component of cell membrane structure and of the body’s key energy source, adenosine triphosphate (ATP).","accessed":"2026-08-27"},{"id":"ods_phos_rda","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Table 1 RDAs, 19+ years","quote":"Table 1: Recommended Dietary Allowances (RDAs) for Phosphorus … 19+ years 700 mg 700 mg 700 mg 700 mg","accessed":"2026-08-27"},{"id":"ods_phos_dv","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Daily Value","quote":"The DV for phosphorus is 1,250 mg for adults and children age 4 years and older","accessed":"2026-08-27"},{"id":"ods_phos_supp","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Dietary supplements","quote":"Phosphorus in supplements is usually in the form of phosphate salts … Products typically provide 10% or less of the DV for phosphorus … The bioavailability of phosphate salts is approximately 70%","accessed":"2026-08-27"},{"id":"ods_phos_intake","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Phosphorus Intakes and Status","quote":"Most Americans consume more than the recommended amounts of phosphorus.","accessed":"2026-08-27"},{"id":"ods_phos_additives","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), phosphate additives","quote":"Phosphate additives are estimated to contribute 300 to 1,000 mg to total daily phosphorus intakes, or about 10%–50% of phosphorus intakes in Western countries. The use of phosphate additives is rising","accessed":"2026-08-27"},{"id":"ods_phos_deficiency","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Phosphorus Deficiency","quote":"Phosphorus deficiency (hypophosphatemia) is rare in the United States and is almost never the result of low dietary intakes","accessed":"2026-08-27"},{"id":"ods_phos_ckd","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Phosphorus and Health — chronic kidney disease","quote":"As kidney function declines, phosphate excretion becomes less efficient and serum phosphate concentration rises. … Increased phosphorus retention often leads to CKD mineral and bone disorder.","accessed":"2026-08-27"},{"id":"ods_phos_ul","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Health Risks from Excessive Phosphorus + Table 3 ULs","quote":"High phosphorus intakes rarely produce adverse effects in healthy people. … 19–50 years 4,000 mg … 51–70 years 4,000 mg … 71+ years 3,000 mg","accessed":"2026-08-27"},{"id":"ods_phos_drugs","url":"https://ods.od.nih.gov/factsheets/Phosphorus-HealthProfessional/","label":"NIH ODS — Phosphorus Fact Sheet (May 4, 2023), Interactions with Medications","quote":"Antacids that contain aluminum hydroxide … bind phosphorus in the intestines, and their chronic use for 3 months or longer can therefore lead to hypophosphatemia … Antacids containing calcium carbonate … also decrease instestinal absorption of dietary phosphorus","accessed":"2026-08-27"},{"id":"hsa_hs_limits","url":"https://file.go.gov.sg/hsa-hs-guidelines.pdf","label":"HSA Singapore — Health Supplements Guidelines (January 2026), clause 4.8 + Table 5 Minerals Limits","quote":"HS for use by the general adult population should not contain vitamins and minerals exceeding the stipulated limits stated in Tables 4 and 5 … Phosphorus 800 mg","accessed":"2026-08-27"},{"id":"hsa_prohibited_2025","url":"https://file.go.gov.sg/hsa-chp-prohibited-restricted-ing-guidelines.pdf","label":"HSA Singapore — Prohibited and Restricted Ingredients in HS and TM, GL-CHPB-1-012 Rev. 001 (Oct 2025), Annex A row 78","quote":"78. Phosphorus — Restricted use in HS and TM — Maximum Daily Dose: When for oral use by general adult population, the maximum recommended daily dose should not provide more than 800mg","accessed":"2026-08-27"},{"id":"iherb_sg","url":"https://sg.iherb.com/c/phosphorus","label":"iHerb Singapore — Phosphorus category page, default “Featured” order, only 4 results (2 of them homeopathic Boiron pellets, 1 an unrelated sulforaphane product)","quote":"Eidon Ionic Minerals, Phosphorus, Liquid Concentrate, 2 oz (60 ml) … Boiron, Phosphorus, 30C, Sleep Aid … Boiron, Phosphorus, 200CK … Metagenics, SulforaClear, 60 Capsules","accessed":"2026-08-27"}],"brand_certs":null,"updated_at":"2026-08-29T16:16:27.496708+08:00"},"disclaimer":"kozen-x is not a medical device and does not give medical advice. it lists what published sources have written down. absence of a record is not the same as safe."}