Liver
Total Protein
See where Total Protein fits among liver-related biomarkers and how this measure is presented.
- Short name
- TP
- Unit
- g/L
- Reference min
- 64
- Reference max
- 83
- Optimal min
- 68
- Optimal max
- 78
- Better when
- in range
- Reference min (male)
- 64
- Reference max (male)
- 83
- Reference min (female)
- 64
- Reference max (female)
- 83
- Sample
- serum
- Fasting required
- false
Moved by
Interventions that trials measured against this marker, and which way it moved.No trial has measured Total Protein against an intervention in this library yet.
Full write-up
What is it
Total Protein is a biomarker associated with the liver. It is used as a measure in liver-related health assessment and helps organize information about this area of the body.
How to test it
Total Protein is measured using a serum sample. When arranging the test, confirm that the service collects serum and ask whether any additional tests are being ordered at the same time, since Albumin and Globulins are related markers that may be considered alongside Total Protein.
Fasting is not required for this test, so it does not need to be scheduled around a fasting period. The result is reported in g/L and should be read against the reference and optimal ranges displayed with the result rather than viewed in isolation.
Collection requirements can differ when several blood tests are ordered together. A clinician or testing service can confirm whether any separate preparation applies to the broader test panel and can help place the Total Protein result in context.
Reading your result
Interpret a Total Protein result against the reference range printed on the same laboratory report. Units and laboratory methods can differ, so a number by itself has little meaning when separated from its stated range. The reference range describes the interval used for general result interpretation, while the narrower optimal range represents a tighter benchmark within that interval; being outside the optimal range does not by itself establish a health problem.
This measurement is reported from serum, and fasting is not required. A single value is not a diagnosis, whether it falls inside or outside a stated range. Results are interpreted alongside the clinical context and other relevant information. An out-of-range result should be discussed with a clinician, who can determine whether follow-up or further evaluation is appropriate.
What moves it
Total Protein has been measured directly in trials of several interventions, so these findings are more relevant to this marker than evidence based only on related outcomes. The interventions listed as increasing Total Protein are Omega-3, L-Carnitine, Curcumin, and L-Leucine. Resveratrol and Lavender Extract are listed as decreasing it, while Quercetin and MCT Oil are listed as unchanged.
The evidence comes from both meta-analyses and randomized controlled trials, with differences in study populations, intervention formats, and follow-up. Rechecking has generally occurred from 1.0 to 26.1 weeks, so the timing of a measurement can affect how an apparent change is interpreted. A listed direction should not automatically be read as a clinically meaningful change or as a predictable response for every person.
There is also an internal interpretation point for Lavender Extract: its listed movement is decreasing, but the reported trial result described higher Total Protein after lavender aromatherapy massage than after the comparison massage. This discrepancy makes the surrounding study details important when interpreting that result. Overall, the directly measured findings indicate that Total Protein can move in different directions depending on the intervention and context; they do not establish a universal effect for supplements or aromatherapy.