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27/09/2021 9:28 am
Is it most important to fast 10-12 hrs. before bloodwork for the blood sugar level mainly or for other reasons also? Liver values affected by not fasting ???
I am so busy lately and I just want to get my liver values. I get blood tested 2-3x per year and everything else has been fine.
Anyone know ?
Topic starter
27/09/2021 9:57 am
Just want to bump this up.
27/09/2021 10:14 am
Fasting is very important, as is the time of day that the bloodwork is completed.
Most doctors will have you take blood work in the mornings, since most hormones are at their most 'average' rate that they will be during the daytime.
Food will cause changes in almost every level, since food absorption changes hormones, enzymes, and many basic chemical structures.
Basic levels like CBC (complete blood count), RBC (red blood cells) and WBC will not be affected greatly, but things like Lipids(cholesterols), Triglycerides, free test, testosterone, estrogen, T4, Thryoid, HGH, creatinine, etc, etc, etc...will all fluctuate greatly based on food absorption.
Just to give you an idea, I had blood work done at one doctor at 8am prior to any meals etc....My Triglycerides were 150 in the a.m. At 2p.m the same day, I had bloodwork done after a large meal of eggs and turkey bacon a few hours earlier. This time my triglycerides were 307 (off the chart)...Point is that it showed a "false reading" because my baseline levels were in the proper range.
The lesson here is that NUTRIENT TIMING is extremely important to how your body functions and how your body grows, etc....
Not to get off topic, but think about the fact that taking a high glucose (sugar) meal spikes an insulin release in the body. Now think about that high protein shake you take right after a workout. The fact that you mix a high sugar or carbohydrate product in with the shake is no coincidence. The body sees the insulin spike, and therefore stores the calories more efficiently. The trick is trying to find your ideal nutrient timing system. So you can see this relates to your question by realizing that to find your ideal method, you must first realize how your particular body responds or is working on average. Not an easy task.
So yes, fast before your bloodwork for optimum results. For liver function fasting is not necessary, but again, optimum reading, got it!!
27/09/2021 10:37 am
Yes, it is important is fast. As Body2see said, you get the best results in the AM and fasting.