What is a normal blood sugar level?

Published 2017-07-11
Make an appointment with Berestrand Williams, MD: www.mountsinai.org/profiles/berestrand-w-williams2
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Berestrand Williams, MD FAAP is a board-certified primary care doctor at Mount Sinai Doctors, seeing patients of all ages Monday – Friday in Greenwich Village. Trained in Connecticut and Massachusetts, he is certified by the American Board of Pediatrics and the American Board of Internal Medicine and a member of the American Academy of Pediatrics and the American College of Physicians. After majoring in Biology and graduating with honors at Harvard University, he was awarded his medical degree from the University of Connecticut’s School of Medicine and completed two residencies – one in Internal Medicine at Boston University’s Boston City Hospital and another in Pediatrics at the combined Boston University School of Medicine - Harvard Pediatric Residency Program. Prior to joining Mount Sinai Doctors, he practiced at the East Boston Neighborhood Health Center for nine years and then served as Chief of Primary Care at Concentra Urgent Care and Family Medicine Center. He has been nationally recognized, receiving the Surgical Scholars Award in 1987 and the AOL Foundation Grant: Franciscan Children's Hospital in 2001. He has written several publications, including Al. Cardiovascular Collapse Treated with Hemodiaysis, Journal of Critical Care Medicine, January 1991. Dr. Williams is fluent in Spanish.

Mount Sinai Doctors, 52 West 8th Street, is a multispecialty practice with Family Medicine, Gynecology, and Internal Medicine.

All Comments (21)
  • @user-de6vg5jt1f
    My daughter drinks lots of water and urinates with the same rate, there are no other symptoms to show if those have anything to do with diabetes. This is a good information that I have gone through Diabets.Care She is 2 years 9 months, hale and healthy, have not done any blood test. But I am not certain if one can get diabetes at such a tender age. Please I will like to know more on that
  • My oldest son is in his early 20's and he has type 1 diabetes. But thank God for this piece of article youtube.com/post/UgkxVYhghKWmrUgXARZ_ydZTvmmcrw5L0… At first he thought he had the flu and was lying down on the bed for three days until his sister took him to the hospital. They took his blood and it was 600. What I do not understand is how he could have gotten it, since no one in the family has it. But he is winning the battle now. This is good stuff.
  • @EngPMgt
    I was diagnosed with diabetes in mount sinai nyc, the doctor prescribed insulin to me 😅 I went to Sungapore for vacation with family and got a second opinion. The doctor confirmed the diagnosis but disagreed with treatment. He told me i should change my lifestyle: 1) intermittent fasting for 16 hours, 2) no sugar, fruits, bread, rice, (or any carbohydrates that will be converted into glucose in blood stream). 3) eat vegetables (limited starch ones like potatoes, yams, etc) 4) drink more waters 5) no dairy products 6) can drink coffee and tea 7) no alcohol (I don’t drink it anyway) 8) my wife does warm drinks like ginger, mint, black pepper with turmeric, etc 9) workout daily (one hour only). My main issue was insulin resistance, and within 3 months, my glucose level went close to normal; and after 6 months later A1c test show normal. Therefore, no insulin is needed 💪🏻 not to mention i lost weight too 😂
  • @carloscoll5249
    Dr Williams is a rare breed of doctor, he identifies the cause of your problem, not just treat your symptoms. He is a walking medical encyclopedia. Where are you doc? Our family misses you very much.
  • I really need the medical community, internationally, to come to an agreement on this thing. One persons tells you one thing and the other person tells you another.
  • @notoriouslysue
    Yes, it used to be 120, then 115, then 110, then 100... now 95? See, if medical professionals and pharmaceutical companies lower any number enuff... it's a gold mine. Remember when they started lower the blood pressure numbers... thousands who were at 120/80 are now on medicine and seeing their doctor more often. My blood sugar in the morning is at 6 am is 115... but guess what happens... by 8 am after coffee or a light breakfast it drops to 95... throughout my waking hours it ranges from 80-130. If I fast during the day (and not while I'm sleeping) my blood sugar can be 80-85. I don't have diabetes and have been told that by more than one physician... I don't know why but my morning fasting sugar is slightly higher than my daily average. The highest my readings were were 148 after a batch of french fries and surprisingly 132 after half a Cinnabon. Both dropped very quickly. A doctor's job security is to call you sick whenever they can, even if it means lowering normal numbers in every category. How do you think some mechanics stay in business :) If you blood sugar ever goes over 200.... see a doctor right away... that's what I say anyway. But I'm not a doctor looking for your money.
  • @tnphung
    Many thanks for a very clear and precise information and guideline on the cut off limit of glucose ...
  • @calmheart1782
    I noticed that he didn’t say: ‘Start cutting sugar out of your diet; Start eating REAL food, NOTHING processed; Don’t eat refined carbs; Don’t drink sweetened drinks; Don’t eat fast food.’ Instead, it was just ‘come see us’!
  • Ranges are changed for each element in health I read a very recent article on the changes in normal BP levels. The reason given for the change was because "it hadn't been upgraded since 2013" With the lower markers, it definitely puts more patients in the category of needing medication I am sure that is the mindset behind the change in blood sugar levels.
  • @rockbay79
    At 58 years old, the V.A. provided me with a Blood Sugar Monitor and suggested that I "home test" from time-to-time. I checked my "non-fasting" blood sugar level today at about 2:00 pm, my level was 100 on the nose. I'm good with this reading.
  • @sargon6948
    95 - this is arbitrary and a ballpark. 70-110 is still the universal accepted normo-glycemia in fasted state, because there is a degree of biological variation and fluctuation. It's important to remember that Blood glucose measurement using modern Enzymatic methods and more historic chemical methods in whole blood, serum, and plasma, can gave differences in values of 2 to 20%, depending on method used, time of collection, whether venous, arterial, capillary, and different reagents used - that means a 95 glucose could be somewhere between a 76 and 114 mg/dl, range. (plumb in the middle of the normal distribution curve, by the way). Also, this actually falls in to the acceptable error range bounds for some National standards for Glucometers, and in laboratory jargon, it is close to the "reference change value" - The minimum change required to conclude that two serial measurements are likely different due to the combined effects of analytic and biological variation. The RCV for Glucose is about 15%, that means if you have a 95 mg/dl glucose, you would need to show a value below 80 mg/dl, or above 108 mg/dl, to show that it was a true change of statistical significance! The Folin Wu method of the 1920s, would give 80-120 mg/dl as the fasted normal sugars reference range, but this also contained about 15-20% reducing sugars other than glucose, so that the true glucose numbers would be about 60 to 100 mg/dl in the whole blood, but 70 to 110 in plasma and serum values, as the plasma and serum carry a higher concentration than whole blood. Plasma actually tends to have slightly higher glucose values than serum samples, by a couple percentage, if the serum is not collected quickly. Perhaps a 95 Serum in this laboratory is about a 99 Plasma equivalency, that is only conjecture but possible. The main point, is that, just like cholesterol, and other labs, and even vital signs like pulse and blood pressure - these values change throughout the day, in a circadian rhythm, or if foods are ingested and other metabolic activities. Consistent numbers of say, 105 or 115 mg/dl, instead of your usual 95 mg/dl, now that would be call for some concern if one carries risk factors of diabetes, and a call to your doctor is warranted. A 95 , however, would be piss average in the prior century and any society that eats more than a few handfuls of carbohydrates in a day - and I don't know of a single culture that attained civilization, and society, which was entirely carnivore and zero carb - (can't think of any off hand anyways) the brain and body needs a certain amount of sugars, for cognitive and motor function.
  • Thank you for that. I've been looking for that information for a long time. You gave it straight and simple.
  • @TheRichSolution
    Thanks for this information...didn't know the cut off changed.
  • @wisesamurai98
    Current EMT here. I have been taught by medics with decades of experience that say 80 to 120 mm/dL is the standard BGL. I encourage anyone watching this video to do their own research into normal sugar levels and compare different results. If we look at the evidence pyramid, we see that expert opinions are ranked as the lowest credible source.
  • @elesjohn1751
    Nice video, I have NightRider cgm and Libre sensor for monitor the glucose values on phone without scanning and finger prick. Also, I share my glucose data as well as my food insights, activity data to my endo. I found all these features are very useful.
  • @floradean3190
    Thanks for the video, I am using Abbott's FreeStyle Libre with Ambrosia's blucon and can get my glucose readings on my apple watch even without the phone. I can share readings with upto 5 people in almost real-time. Can get alarms and my loved one can also get an alarm if my glucose is out of range.
  • @OfftoShambala
    Is there some new science showing this lower rating is valid? Or are they trying to create more customers?
  • Please suggest i have taken Breakfast at around 8:30 AM and Feeling Headache and Dizziness I’m suffering from Flu as well Date: 21/02/2024 Time: 11:15 AM BP: 120/90 Sugar: 109