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Zinc · Serum Zinc · Zn

ElektrolyteNüchtern erforderlichZeitabhängig
Einheit:
µmol/L
Abbreviation
Zn

Zinc test quantifies the concentration of zinc in the serum, reflecting zinc status in the body.

Reference Ranges

Reference
10.719.1µmol/L
10.7
12
18
19.1
LowNormalHigh
Reference
Optimal
Unit · µmol/L

Reference ranges may vary slightly by lab; fasting recommended for accuracy.

Overview

Übersicht

Zinc (Zn) is a trace element and electrolyte that plays a crucial role in numerous biological processes, including immune function, protein synthesis, wound healing, DNA synthesis, and cell division. It is primarily measured in serum to assess zinc status in the body. Clinically, zinc is important for its role in immune response and has been studied in the context of sepsis, where researchers observed that zinc redistribution to the liver may serve as a defense mechanism. Zinc levels have also been linked to cardiovascular health, with deficiencies contributing to cardiovascular diseases. In the realm of athletic performance and biohacking, zinc is valued for its potential to enhance immune function and support recovery, although excessive supplementation can lead to toxicity. Confounders in zinc measurement include time-of-day variations and recent dietary intake, as zinc levels can fluctuate based on these factors. Fasting is generally recommended to minimize these effects.

Klinische Bedeutung

Elevated zinc levels can indicate excessive supplementation or exposure to zinc-containing materials, while reduced levels may suggest dietary deficiency, malabsorption, or increased physiological demand, such as during infection or inflammation.

Dynamics

Trend Interpretation

Rising Values

Progressively rising zinc levels may indicate excessive supplementation or exposure; re-test in 4 weeks if outside optimal range.

Falling Values

Progressively falling zinc levels suggest possible deficiency or increased physiological demand.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Excessive supplementation
  • Inhalation of zinc oxide fumes
  • Use of zinc-containing denture creams
  • Occupational exposure
Cause

Low Levels

  • Dietary deficiency
  • Malabsorption syndromes
  • Chronic liver disease
  • Increased physiological demand
Protocol

How to Optimize

Lever

Lifestyle

  • Reduce exposure to zinc-containing materials
  • Avoid excessive zinc supplementation
Lever

Nutrition

  • Consume zinc-rich foods like oysters and beef
  • Include nuts and seeds in diet
Lever

Supplementation

  • Zinc gluconate
  • Zinc citrate

Note:

Consult a healthcare provider before starting zinc supplements, especially if taking other medications.

Testing Guidelines

🍽️Fasting Required
🕐Time-Sensitive

Zinc levels can vary throughout the day; morning samples are preferred.

Testing Frequency

Annually for healthy adults, more frequently if deficiency is suspected.

Interfering Factors

  • Recent dietary intake
  • Alcohol consumption
  • Use of oral contraceptives

Related Peptides & Hormones

C Reactive Protein

Correlated with

hormone or peptide

Open Research Questions

Current research suggests that reference ranges for zinc levels in various clinical contexts, such as sepsis and cardiovascular diseases, remain inadequately defined, and optimal targets for supplementation are still debated. Researchers have not yet established the confounding factors that may affect zinc metabolism and its role as a biomarker. Additionally, clinical questions about the efficacy of zinc supplementation in improving outcomes in neonatal sepsis and its precise mechanisms of action require further investigation.

24 Research Publications

844

Total Citations

4

Human/RCT

3.6

Avg. Influence

2025

Latest

Sort
Filter
#01

Zinc deficiency in low- and middle-income countries: prevalence and approaches for mitigation.

ReviewInfluence16.0
236
This review addressed the prevalence of zinc deficiency in low- and middle-income countries. Researchers found that zinc deficiency is a significant public health issue, with over 20% prevalence in many countries, and highlighted the need for effective supplementation strategies.
View on PubMed
#02

Roles of matrix metalloproteinase-7 (MMP-7) in cancer.

ReviewInfluence3.0
127
This review focused on matrix metalloproteinase-7 (MMP-7) and its role in cancer. Researchers noted that MMP-7 is involved in various cancer processes and may serve as a promising biomarker for cancer diagnosis and prognosis.
View on PubMed
#03

Zinc and Sepsis.

UnknownInfluence3.0
85
Researchers found that zinc plays a crucial role in the immune response during sepsis, with alterations in zinc concentrations correlating with disease severity. They observed a potential for zinc to serve as a diagnostic marker for sepsis outcomes. The study suggests that understanding zinc's role could improve treatment strategies for septic patients.
View on PubMed
#04

[Diagnosis of zinc deficiency].

Roth H P & Kirchgessner M · Zeitschrift fur Gerontologie und Geriatrie · 1999

ReviewInfluence4.0
67
Researchers discussed the challenges in diagnosing marginal zinc deficiency, which is more common than previously thought. The study highlighted the need for sensitive diagnostic parameters to assess zinc status effectively. It emphasized that suboptimal zinc levels can significantly impact health and development.

Key findings

  1. 01Marginal zinc deficiency is prevalent but difficult to diagnose due to the absence of classical symptoms.
  2. 02Sensitive diagnostic parameters, like zinc-binding capacity and alkaline phosphatase activity, are crucial for accurate assessment.
  3. 03A combination of different tests is recommended to reliably evaluate a person's zinc status.
View on PubMed
#05

Zinc as a Biomarker of Cardiovascular Health.

UnknownInfluence3.0
64
Researchers found that compromised zinc levels are linked to cardiovascular diseases (CVDs), suggesting that zinc status is important for cardiovascular health. They noted that zinc deficiency may contribute to CVD development and that zinc supplementation could be beneficial. Further studies are needed to clarify the relationship between zinc and CVDs.
View on PubMed
#06

Advances of Zinc Signaling Studies in Prostate Cancer.

ReviewInfluence1.0
60
This review summarized the role of zinc signaling in prostate cancer. Researchers found that zinc levels decrease in prostate tumors and may serve as a potential biomarker for diagnosis and therapy.
View on PubMed
#07

Zinc and skin: a brief summary.

ReviewInfluence3.0
55
This brief review summarized the clinical implications of zinc deficiency on skin health. Researchers found that recognizing cutaneous lesions associated with zinc deficiency is crucial for diagnosis, as serum zinc levels alone may not reliably indicate deficiency.
View on PubMed
#08

Interactions of trace elements: clinical significance.

AnimalInfluence1.0
52
This study explored the interactions of zinc with copper and lead, noting that zinc deficiency can lead to copper overload in certain conditions. Researchers discussed the potential of zinc therapy for managing Wilson's disease by inducing negative copper balance. The findings highlight zinc's protective role against lead toxicity.
View on PubMed
#09

Zinc metabolism and thyroid status.

Human
40
This study observed increased urinary zinc excretion in patients with thyrotoxicosis compared to those with normal thyroid function. The increase was correlated with the severity of the metabolic response to hyperthyroidism. Researchers discussed the potential clinical significance of these findings.
View on PubMed
#10

Clinical Significance of Trace Element Zinc in Patients with Chronic Kidney Disease.

Review
19
This review highlighted the importance of zinc in patients with chronic kidney disease. Researchers found that zinc deficiency is linked to various health complications, suggesting a need for careful management.
View on PubMed

Publication Trend

Research publications about Zink over time

9total
1
'77
1
'85
1
'18
2
'21
2
'22
1
'24
1
'25

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