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Phosphorus

Phosphorus Blood Test

Phosphorus is vital for energy and bone health. Regular testing alongside calcium helps maintain mineral balance and supports preventive care.

Doctor's Assessment Included

Reference Ranges

See the value that applies to you:

Age years

Choose male or female — this range differs by sex.

Enter your age — this range changes with age.

This range also depends on context such as cycle phase or sample material; the highlighted rows apply to your group.

Your reference range

mmol/l

0,62 1,53 mmol/l

Reference ranges by group, in mmol/l
Sex	Age	Reference range (mmol/l)	Relative scale
Male	· 13–18 years	0,88–1,53 mmol/l	0,88 1,53
Male	· 19 years and older	0,62–1,32 mmol/l	0,62 1,32
Female	· 13–18 years	0,82–1,52 mmol/l	0,82 1,52
Female	· 19 years and older	0,73–1,4 mmol/l	0,73 1,4

0,62 1,53 mmol/l

Source: NVKC Reference population: Nederlandse huisartsenpopulatie (NUMBER, n=7.574.327)

Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.

Check your own value

Phosphorus: what this test measures

This test measures the level of inorganic phosphate in your blood. It helps evaluate bone health, kidney function, and parathyroid activity.

Phosphorus: why this value matters

Phosphorus is essential for energy storage and transfer (as ATP), bone mineralisation, and DNA synthesis. Imbalances may be associated with bone disorders, kidney disease, or hormonal conditions. Consult your healthcare provider for guidance.

Phosphorus: when is testing worthwhile?

Testing may be recommended alongside calcium testing, or if you have kidney disease, bone disorders, parathyroid conditions, or symptoms of mineral imbalance.

Phosphorus: symptoms of a high or low value

Low Levels

Symptoms of low phosphorus may include bone pain, weakness, loss of appetite, numbness, and difficulty breathing. Severe deficiency can affect bone integrity.

High Levels

High phosphorus is often linked to kidney disease and may cause itching, joint pain, muscle cramps, and calcium deposits in soft tissues. Medical evaluation is recommended.

Phosphorus: what to do about an abnormal value

Male

If Low

Low phosphorus may cause muscle weakness. Consider dietary adjustment.

If High

High phosphorus may indicate kidney problems. Consider kidney function testing.

Female

If Low

Low phosphorus may cause muscle weakness. Consider dietary adjustment.

If High

High phosphorus may indicate kidney problems. Consider kidney function testing.

Phosphorus: lifestyle and this value

Phosphorus is widely available in foods such as dairy, meat, fish, nuts, and beans. Most people obtain adequate phosphorus through diet. If you have kidney concerns, your healthcare provider may advise monitoring phosphorus intake.

Phosphorus: frequently asked questions

How are phosphorus and calcium related?

Phosphorus and calcium work together to build and maintain bones. Their levels are regulated by parathyroid hormone and vitamin D. An imbalance in one often affects the other.

Can kidney disease affect phosphorus levels?

Yes, the kidneys regulate phosphorus excretion. When kidney function declines, phosphorus may accumulate in the blood. Your healthcare provider can advise on management.

Is phosphorus in processed foods a concern?

Phosphorus additives in processed foods are absorbed more readily than natural phosphorus. Excessive intake from processed foods may be a concern for those with kidney conditions. Consult your healthcare provider.

Test Products

This marker is included in the following test panels.

Whoop

Whoop Women's Health

A 53-biomarker women's health panel inspired by the WHOOP Women's Health Panel — fertility, cycle and thyroid hormones plus a complete metabolic and nutrient base.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) AMH (Anti-Müllerian Hormone) Progesterone Prolactin TPO Antibodies Free T3 (Triiodothyronine) Free T4 (Thyroxine) Leptin Vitamin B12 Folate (Folic Acid) Phosphorus

€709,-

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Medical standards

Dr. Naimi oversees the medical standards behind our content and assessments.

Medical policy

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