All you need to know about testing Phosphate levels with a laboratory test
20.8% of people tested have Phosphate levels which are too high.
And 3.8% have levels that are too low.
The average Phosphate result is 1.3 mmol/L
Note what is normal for you may differ for your age and sex.
Phosphorous is a mineral that is required to build strong teeth and bones.
It is also needed for a nerve signalling (when the brain sends signals through our nerves) and muscle contraction.
Abnormal levels of phosphorous can occur in the presence of bone, liver and kidney diseases.
By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure Phosphate for total reassurance.
Professional analysis in an accredited laboratory ensures rapid result delivery.
Tests which include a Phosphate test:
Higher than normal phosphate levels can contribute to calcium deposits forming in organs, particularly the kidneys, so this result is often considered alongside calcium levels.
Raised phosphate can be associated with excessive supplementation. It can also be linked to other conditions, including advanced kidney disease or a disorder of the parathyroid gland.
High phosphate levels are commonly interpreted in the context of other results, including calcium (for example, from a bone profile), kidney function tests (for example, from urea and electrolytes), and parathyroid hormone levels. Symptoms are also relevant when considering the significance of a high phosphate level, and this finding is often reviewed further to clarify the cause.
Dietary deficiency is an uncommon cause of low phosphorus, but it can occur in cases of malnutrition or alcoholism.
Low phosphate levels (hypophosphataemia) can also be associated with hypercalcaemia (high calcium levels), as well as a wide range of other conditions, including disorders of the parathyroid gland.
Some drugs can cause excessive phosphate loss in the urine.
This finding is often reviewed further to clarify the cause and any possible treatments. Because various drugs and diseases can be linked to low phosphate (including diuretic use, hyperparathyroidism, and genetic diseases), this result is commonly shared with a GP.
Measure your Phosphate levels and with a nurse or clinic test kit
You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.
This Test is advised if you:
Dr. Shahzaib Ahmad MBBS, BSc, MRCP, FRCA, FFICM
Clinical Supervisor - Vitall|GMC 7495062|Profile
Reviewed on 03/02/2026
Next review due 03/02/2027
Review focus: Blood biomarkers, laboratory testing methodology, and biochemical interpretation.
All Testing Is Conducted In UKAS Accredited Laboratories.
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