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Blutwerte · Marker

Zink

Zinc · Serum Zinc · Zn

ElektrolyteZeitabhängig
Einheit:
µmol/L
Abbreviation
Zn

Zinc test measures the concentration of zinc in the blood, reflecting the body's zinc status.

Reference Ranges

Reference
10.7–18.4µmol/L
10.7
12
18
18.4
LowNormalHigh
Reference
Optimal
Unit · µmol/L

Reference ranges may vary slightly by laboratory; fasting is not required.

Overview

Übersicht

Zinc (Zn) is a trace element that plays a pivotal role in numerous biological processes, including immune function, protein synthesis, wound healing, DNA synthesis, and cell division. It is an essential component of many enzymes and is necessary for the proper function of the immune system. Zinc is predominantly stored in muscles and bones, with a small proportion circulating in the blood. Clinically, zinc levels are important as they reflect nutritional status and immune function. Researchers have found that zinc deficiency can lead to increased susceptibility to infections, delayed wound healing, and impaired growth in children. In conditions like sepsis, zinc redistribution from serum to the liver is observed, which may serve as a defense mechanism. Zinc is also linked to cardiovascular health, with deficiency contributing to the development of cardiovascular diseases. For athletes and biohackers, maintaining optimal zinc levels is crucial as it supports immune function, reduces inflammation, and may enhance recovery and performance. However, zinc levels can be influenced by various factors such as dietary intake, supplementation, and interactions with other trace elements like copper. Excessive zinc supplementation can lead to copper deficiency, highlighting the need for balanced intake. Testing for serum zinc does not require fasting, but levels can be affected by recent dietary intake and time of day. Therefore, consistent testing conditions are recommended for accurate assessment.

Klinische Bedeutung

Elevated zinc levels may indicate excessive supplementation or exposure, while reduced levels can suggest dietary deficiency, increased loss, or redistribution during illness. Zinc deficiency is associated with impaired immune function and increased infection risk.

Dynamics

Trend Interpretation

Rising Values

Progressively rising zinc levels may indicate excessive supplementation or exposure. Re-test in 4 weeks if levels exceed reference range.

Falling Values

Progressively falling zinc levels suggest possible dietary deficiency or increased bodily demand.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Excessive zinc supplementation
  • Occupational exposure
  • High dietary intake
  • Use of zinc-containing denture creams
Cause

Low Levels

  • Dietary deficiency
  • Malabsorption syndromes
  • Chronic liver disease
  • Increased loss due to renal issues
Protocol

How to Optimize

Lever

Lifestyle

  • Ensure balanced diet
  • Avoid excessive alcohol consumption
  • Manage chronic illnesses effectively
Lever

Nutrition

  • Consume zinc-rich foods like meat, shellfish, and legumes
  • Include nuts and seeds in diet
  • Incorporate whole grains
Lever

Supplementation

  • Zinc gluconate
  • Zinc sulfate

Note:

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

Testing Guidelines

✓Fasting Not Required
🕐Time-Sensitive

Zinc levels can fluctuate; morning samples are preferred for consistency.

Testing Frequency

Annually for those at risk of deficiency; more frequently if symptoms or conditions suggest.

Interfering Factors

  • Recent meal consumption
  • Use of oral contraceptives
  • High-dose iron supplements

Related Peptides & Hormones

Ceruloplasmin

Correlated with

hormone or peptide

Open Research Questions

Current research suggests that reference ranges for zinc levels in various populations, particularly in children with atopic dermatitis, remain unclear, as does the optimal target for zinc supplementation in different disease contexts. Researchers have not yet established the long-term effects of zinc supplementation on cardiovascular health and its interactions with other trace elements, such as copper. Additionally, clinical questions regarding the precise role of zinc in sepsis outcomes and its potential as a diagnostic marker remain unanswered.

38 Research Publications

1,127

Total Citations

13

Human/RCT

3.2

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

Benefits and Adverse Effects of Histidine Supplementation.

ReviewInfluence3.0
108
This review discusses the benefits and potential adverse effects of histidine supplementation, highlighting that high intakes can decrease serum zinc levels. Researchers noted a U-shaped relationship between histidine and zinc concentrations.
View on PubMed
#04

Zinc and Sepsis.

ReviewInfluence3.0
86
This study examined the role of zinc in sepsis, finding that changes in zinc concentrations may correlate with disease severity and outcomes. Researchers observed that zinc could be involved in immune response mechanisms during sepsis and might serve as a potential diagnostic marker.
View on PubMed
#05

Infants and elderlies are susceptible to zinc deficiency.

HumanInfluence1.0
85
Researchers found that a significant percentage of infants and elderly individuals exhibit zinc deficiency, with rates exceeding 20% in these populations. The study emphasizes the need for interventions to address zinc deficiency for health and development.
View on PubMed
#06

[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
#07

Zinc as a Biomarker of Cardiovascular Health.

ReviewInfluence3.0
66
Researchers found that zinc is crucial for cardiovascular health, with deficiencies linked to various cardiovascular diseases. The study suggests that zinc supplementation could be beneficial in preventing and treating these disorders.
View on PubMed
#08

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
#09

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
#10

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 increased copper levels. Researchers observed that zinc therapy could reverse this effect and may be useful in treating Wilson's disease.
View on PubMed

Publication Trend

Research publications about Zink over time

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1
'85
1
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1
'16
1
'17
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'18
3
'20
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'21
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'22

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