Zinc
A mineral needed for immunity, skin, taste, smell and wound healing.
TypeBlood test
HowMorning blood draw.
How oftenIf at risk or with symptoms.
BeforeFasting morning sample is most accurate.
WhoPeople with gut conditions, plant-based diets or poor wound healing.
Hard to measure, easy to miss
Zinc supports immunity, wound healing, taste and skin. Blood levels shift with meals, time of day and infection - so a single result needs context.
Who’s at risk
“Could I be low?”
Gut conditions, plant-based diets, alcohol and some medicines.
Risk
Timing
“When should I test?”
Morning and fasting gives the most reliable reading.
Prep
Too much
“Can I overdo supplements?”
High doses can lower copper. Test before taking large amounts.
Balance
Is it right for you?
Worth considering if…
- You have poor wound healing or frequent infections.
- You have a gut condition affecting absorption.
- You follow a vegetarian or vegan diet.
A better option if…
- You feel well - routine testing isn’t needed.
How it’s measured
Serum or plasma zinc
The standard test.
The full picture
What is it?
A test of zinc levels in your blood.
What type of test is it?
A blood biomarker.
What does it measure?
Serum zinc.
Why might someone consider it?
Low zinc affects immunity and healing.
Who is it most relevant for?
People at risk.
How is it performed?
A morning blood draw.
How often might it be considered?
When needed.
What can the result help you understand?
Whether you may be low.
What are its limitations?
Levels shift with inflammation and time of day.
What should it be viewed with?
Diet, copper and gut health.
Where to get it
Through your provider
The simplest route - often covered when there’s a clear reason.
Lab services
e.g. Quest Diagnostics, Labcorp.
Direct-to-consumer panels
e.g. Function Health, InsideTracker.
Names are examples only, not endorsements. Your provider can often order the same test - and help interpret it.
Connected to
Questions to ask your provider
- Could low zinc explain my symptoms?
Ziva Health
One test is a snapshot. Ziva shows the whole story.
Ziva brings your lab results, wearables and daily readings together - and Isabella tells you what’s changing and what to ask your provider next.
Refer Ziva to my provider / care team
Is your provider not on Ziva yet? Send them a link in under a minute - once they join, they’ll see your Zinc result alongside your other trends and get alerts directly.
Refer my providerAlready seeing your provider?
Bring your Ziva 30-day report to your next appointment - your Zinc result and daily trends in one view, so the conversation starts with the full picture.
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Being listed doesn’t mean everyone needs this test. Educational only — not medical advice. Results should be interpreted with a qualified clinician. ← Back to Know What to Test