Phosphorus is a mineral found in the body that is important for building strong bones and teeth (along with calcium), promotes energy metabolism as it is necessary for B-complex vitamin utilization, promotes growth, maintenance and repair of all body tissues, buffers body fluids for acid-base balance, and acidifies the urine and reduces the risk of kidney stones.. Dietary phosphorus is absorbed in the small bowel.
The following foods are natural sources of phosphorus. For a more expansive list on food sources of specific nutrients visit Health Canada's Dietary Reference Intakes for Elements or USDA's National Nutrient Database
Other food sources include:
Conditions which may/individuals who may require additional phosphorus include: 
|Article||No Rash Decision Towards Phosphorus for Shingles, NDNR; 2013 February|
- Prolonged vomiting
- Inadequate caloric or dietary intake or increased nutritional requirement
- Taking excessive amounts of antacids
- Chronic wasting illness
- Stress. People under excess stress for prolonged periods
- People who have had recent urgery
- Liver disease
- bone pain
- loss of appetite
- easily broken bones
- seizures, heartbeat irregularities, shortness of breath
- overconsumption may lead to calcium excretion and eventually lead to osteoporosis
Adverse reactions or side effects of taking phosphorus may include:
- abdominal pain
- bone or joint pain
- breathing problems
- decreased volume of daily urine output
- fast, slow, or irregular heartbeat
- muscle cramps
- numbness or tingling in hands and feet
- unusual thirst
Lab test to detect deficiency: 
- Phosphorus is available in many forms. Sodium phosphate is available as monobasic, dibasic, and tribasic sodium phosphate. Potassium phosphate is available as monobasic, dibasic, tribasic, potassium phosphate. Some preparations have a mixture of different forms. Use of these salts for treatment of phosphorus deficiency requires medical supervision.
- Calcium phosphate salts are mainly used as calcium supplements and come in tribasic and dibasic calcium phosphate.
- Some homeopathics are phosphate salts (ex. Kali phosphoricum, Ferrum phosphoricum, Magnesium phosphorica, and Natrum phosphoricum). Phosphorus is also prescribed homeopathically.
- 1mL of milk contains approximately 1mg of phosphorus .
- The recommended dosages varies based on age and health status. To determine what your specific requirements are talk to your naturopathic doctor or other trained medical professional
- Adults Over 55 Years: No problems are expected.
- Pregnancy: Take under doctor's supervision only and not in megadoses.
- Breastfeeding: Take under doctor's supervision only and not in megadoses.
- Contraindications: kidney disease, kidney stones (made up of magnesium ammonium phosphate)
- Consult your doctor if you have: hypoparathyroidism, osteomalacia, acute pancreatitis, chronic kidney disease, rickets, adrenal insufficiency (Addison's Disease), dehydration, severe burns, heart disease, edema, high blood pressure, toxemia of pregnancy
- Drug Interactions include:
- Anabolic Steroids - Increases risk of edema.
- Antacids with aluminum or magnesium - May prevent absorption of phosphates.
- Calcium-containing Supplements and Antacids' - May decrease phophate absorption.
- Captopril - Increases risk of too much potassium (hyperkalemia).
- Corticosteroids - Decreases phosphate absorption.
- Cortisone Drugs or ACTH - Increases serum sodium.
- Digitalis Preparations - Increases risk of too much potassium (hyperkalemia).
- Dilantin - May decrease phosphate absorption.
- Enalapril - Increases risk of too much potassium (hyperkalemia).
- Salicylates - May increase plasma concentration of salicylates.
- Testosterone - Increases risk of edema.
- Nutrient Interactions include: 
- Griffith Winter (2000) Vitamins, Herbs, Minerals & Supplements: The Complete Guide, Revised Edition, MJF Books.
- Medlineplus 
- Hendler Sheldon S., Rorvik David (Editors) (2008) PDR for Nutritional Supplements, Medical Economics Company Inc.