I know you should fast some amount of hours before a blood test. But now I’m taking a blood test with all the additional tests vegans should take. How much time do I need to fast?
How much time I have to fast before vegan blood test?
- Thread starter Ohad
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Lou
Forum Legend
I've always been advised to fast for 12 hours.
I have no idea what you mean by additional tests for vegans.
B12 is often (usually) tested as serum, but the effective test should be MMA.
Unless you have a physician that has a specialty in plant based nutrition--a RD, or a lifestyle physician--you're not likely to be given specific tests, or even have them read effectively.
People eating plant based diets do have different results in terms of cholesterol, and iron, but unless your doctor is an advocate it won't ever be addressed, and may be seen as poor results.
I can't find specifics, but here is an example of how results can be misinterpreted:
How to Design a Misleading Study to Show Diet Doesn’t Work | NutritionFacts.org
A study out of the University of North Carolina found no association between dietary fiber intake and diverticulosis. They compared those who ate the
nutritionfacts.org
Flawed Study Interpretation | NutritionFacts.org
It all depends on how you define
nutritionfacts.org
You really should ask the lab this question. Here are some general guidelines :
Can I eat and drink before having a blood test?
Eating and drinking before a blood test depends on the type of test you're having. The healthcare professional who arranges your blood test will tell you whether there are any specific instructions you need to follow. You can eat and drink as normal before some blood tests.
www.nhs.uk
Usually, you only need to fast before taking a blood glucose diabetes test. When I had to go in for my blood tests, it was in the early morning; and I I was told to eat breakfast after the test.
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