I think you will find a lot of differing opinions on this. You can still brush your teeth but nothing at all to eat or drink. Blood Glucose Test; Abstain from eating or drinking anything except water for at least 8 -10 hours before a blood glucose test. While fasting for less than 5 days, you'll be burning your own body fat and getting those vitamins that way. As you can see, besides the fake sweeteners and a few other (not-so-good) ingredients, this drink contains basically nothing! 1. Can you drink water before a blood test?Generally speaking, you’ll want to follow your doctor’s orders when taking these different tests. Fasting Blood Test: Yes, you can drink water and eat no food for your test. As to whether you can drink this, it would depend directly on why you're fasting. With certain blood tests, you may be instructed to fast for up to eight hours before your appointment. 2. 1) Barely drinking any water. Calorie free doesn't mean it doesn't have artificial sugars. Check out my other article for the best sparkling waters to drink while fasting. 0 comment. Plain old water -- … 0. If just for weight loss, then I think it is okay. In most cases, water (still or sparkling) may be consumed before a fasting blood test. A 37-year-old member asked: when fasting for metabolic blood test can i drink water? 1 doctor agrees. The average person does not drink enough water daily, thus making the blood a bit thicker. can you drink carbonated water while fasting for a cholesterol test? But this second one can sometimes be even more detrimental than the first since it can actually flush electrolytes. A water-only fast involves not eating or drinking anything but water, generally for eight to 12 hours prior to your blood draw. Here are a few things a person can drink before a routine fasting blood test: water flavoured water with no sugar (carbonated water is ok if no electrolytes) black coffee with no milk, cream or sugar tea with no milk, cream or sugar diet soda (ask doctor) That’s all I can think of right now, but you get the idea. ... Any time I have to go in for a blood test that I must fast for, they tell me that I cannot even have water. Note that the COLORING dyes will DEFINITELY affect procedures such as a colonoscopy. Dr. Terri Washington … While the additive may be sugar free, the flavoring chemicals can, in some cases, affect the test results. Carbonated Water (acceptable) Carbonated water also known as “club soda” is slightly different than sparkling water due to the manufacturing process. Don’t wait until the day of your blood draw to ask if you should fast. 2) Dutifully chugging away. If for medical reasons, it's a bad idea as most diet drinks still spike your blood sugar. Send thanks to the doctor. or. Fasting before a blood draw means you don’t eat or drink anything except water. "flavored water" isn't actually water. If you’re currently taking any medications, check with your doctor to see if you can take your regular dosage without affecting the results. I think it really depends on what your goals are and why you are fasting. Your doctor will let you know if and when you should be fasting or will refer you to the testing laboratory for explicit instructions. I asked this question a couple of weeks ago and quite a few people said they drank sparkling water on their fast. Plain old water is required for fasting before blood work. 0 0. Fasting actually affects the results of very few blood tests. Water-soluble: These vitamins are not stored in your body but excreted during the day if you drink liquids. Fasting Instructions. Get your answers by asking now. 2 thanks. 3. Still have questions? Know These Fasting Guides to Different Test. 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