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Minerals

Phosphorus

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:

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
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

What It Measures

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

Why It 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.

When to Test

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

Symptoms

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.

Recommendations

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.

Lifestyle Tips

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.

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.

Tests with related values

These panels measure values from the same category as this marker.

Whoop

A 44-biomarker comprehensive health panel inspired by WHOOP Advanced Labs — a deep look at metabolism, cardiovascular risk, hormones, liver, kidney and inflammation.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol Cortisol DHEA-S Estradiol (E2) Free Testosterone FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Total Testosterone Bicarbonate Calcium Chloride Ferritin Iron (Serum) Magnesium Potassium Sodium Transferrin CRP (C-Reactive Protein) Homocysteine Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Omega-3 Index Total Cholesterol Albumin HOMA-IR ALP (Alkaline Phosphatase) AST (Aspartate Aminotransferase) Bilirubin (Total) Total Protein Urea (BUN) Creatinine Vitamin D (25-OH) eGFR (Estimated Glomerular Filtration Rate) Insulin (Fasting) Leukocyte Differential Transferrin Saturation Lipoprotein(a) Triglycerides Basic Blood Count
€499,-

InsideTracker

A 36-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Magnesium (Intracellular) Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Basic Blood Count
€399,-

Phosphorus

€10,-