HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Is fasting required before blood test to check calcium level?

10 doctors weighed in across 4 answers
Dr. Richard Zimon answered

Specializes in Internal Medicine

No: Calcium level is not affected by food. Hope this is helpful! DR Z

Dr Hegab and 5 doctors agreed

Answered 9/27/2020

173 views

Thank
Dr. Michael Gabor answered

Specializes in Diagnostic Radiology

No: You generally don’t need to fast for that specific test

Dr Hegab and another doctor agreed

Answered 5/26/2019

173 views

Thank

Calcium : Calcium is not affected by food but can be affected by water intake.

Dr Hegab and another doctor agreed

Answered 5/26/2019

173 views

Thank

Not for calcium: You do not need to fast for calcium. However, if you getting tested for glucose or lipids, then an overnight fast of at least 9 hours is required.

Answered 5/27/2019

172 views

Thank

Related Questions

A member asked:

I had some blood tests done and they came back saying that i had high calcium levels in my blood. What does that mean?

A doctor has provided 1 answer

A member asked:

4 mnth baby has blood tests results showing a slight elevation in his ft4 levels and his calcium. Is this serious or related?

A doctor has provided 1 answer

A member asked:

My husband had a blood test to cheeck calcium levels 6 months ago it was low and told to use caltrate plus now dr said to stop cause it's to high why?

A doctor has provided 1 answer

A member asked:

I had a blood calcium level of 11.0 my doctor did re check and it came back normal , 9.5 what is the reason for this?

A doctor has provided 1 answer

A member asked:

My last blood test showed higher than usual calcium levels, should I be concerned?

4 doctors weighed in across 2 answers

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

What is the blood test to check blood calcium levels called?
Hi! Today I have to get a blood test to check my calcium levels. Do you think it would affect my results because I am on my period?
If you are getting blood tests to check vitamin levels, and it says "no supplements 24 hours", can you still have Tums (calcium carbonate) if not checking calcium levels?
35 yr male. I recently did blood work without fasting . I waited 4 hours at the va to get blood drawn.(after 3pm)My calcium level was 10.5, total protein 8.6 and albumin was 5.5, everything else came back very normal. Do you think this was dehydrati?
Is 1.12 a low level for ionesed calcium in a abg blood test?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.