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Blood test
When is the best time for best reading like empty stomach morning or after food for testing my vitamin b12 and vitamin d levels and iron in serum.
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For acquiring accurate blood test results, it is very important to keep in mind the timings and fasting state which makes a lot of difference.
- Vitamin B12: This test is usually done after observing a fasting state (8-10 hours) because recent meals, especially the ones which are high in animal protein, can raise the b12 levels in the body temporarily and give false measures. Morning fasting is considered the most reliable method for testing vitamin B12.
- Vitamin D: No fasting is required for doing this test as the levels remain stable throughout the day and are not significantly affected by meals. It can be tested anytime.
- Serum Iron: While testing for Iron fasting is required as levels vary every day and are usually highest in the morning. An overnight fasting will give you accurate results. And it is important to note that avoid consuming iron supplements for at least 24 hours before testing, as they can elevate iron levels.
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Following these guidelines will help you get accurate readings and if you have any further queries related to your health you can connect with us for a personalized diet plan for your needs.
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Nothing difference
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Either ways you can empty stomach or even post meal wont make a difference Sir
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Ms. Trupti Padhi
Dietitian/Nutritionist
16 yrs exp
Bhubaneswar
Good evening pls check with the physician for it.
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Ms. Neema Yadav
Dietitian/Nutritionist
5 yrs exp
Kolhapur
Healthy evening,
Iron serum
Best time : morning 8-10 am
Fasting: yes , empty stomach is recommended bcoz food, tea, coffee , and supplements can affect iron absorption and give false readings
Vitamin B12 :
Best time : Morning but not strictly
Fasting: usually overnight fasting is advised for only accuracy meals and supplements can slightly affect results
Vitamin D
Best time: any time
Fasting: not required; foods or supplements not significantly affect vitamin D levels
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Ms. Somya Jain
Dietitian/Nutritionist
9 yrs exp
Delhi
Fasting reading or empty stomach reading is good with over night fasting
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Ms. Moumita Dutta
Dietitian/Nutritionist
10 yrs exp
Kolkata
Any time.
You may contact for diet advice.
Follow my YouTube▶️ channel
https://youtube.com/@moumitadutta9588
(Dietitian Moumita Dutta)
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.