Feeling Tired After Eating Sugar

You would be amazed to know that all the food that you eat has high sugar content, if you were not buying sugar-free products. Popping these stuffs would provide you with an instant burst of energy, but on the other hand, this instant burst would die soon. Consuming sugar increases the metabolism of the body, and hence you feel sleepy and tired. Although medical practitioners and researchers have always condemned the use of excessive sugar, there are very few people who understand the reason behind it.

People usually think that consuming sugar would provide them with instant energy. This however is not true. You might feel energetic for sometime after having sugar because of the increased metabolism, but as soon as the sugar is burnt you start feeling tired and sleepy. Researchers have a lot to say on this topic. One of the main reasons as to why you feel tired is explained below.

When you consume sugar or product containing a high amount of sugar, then it causes an increase in the blood sugar levels. The increase in the blood sugar level results the release of insulin from the pancreas, which would result in sudden decrease of the blood sugar levels. This sudden diminishing of the levels makes you feel sleepy and tired. This can also result in cravings in your body as it tries to recover from this sudden change.

The sluggishness caused as a result of sugar consumption can also be attributed to sugar sensitivity. This is caused when you have an increased blood sugar level because of low serotonin and low beta-endorphin. Both beta-endorphin and serotonin are chemicals that are found in the brain. When the level of serotonin is low, then you will experience fatigue, and at times would be unable to focus on issues. If the level of beta-endorphin falls, then it can result in depression and also reduces the level of pain tolerance, this can also result in increased craving for sugar and carbohydrates. Sugar sensitivity is different from diabetes and focuses on how fast the blood sugar level comes down.

There can also be a possibility of you being a diabetic or prone to develop diabetes. The best solution when you face the problem of feeling tired after eating sugar or sugar products is to see your doctor. If there is a medical condition related to your problem, then only a physician can understand and help you come out of it. However, if the problem is occasional, then there is nothing to worry about, it is a temporary phase that happens to a number of people.

Another important factor that you should keep in mind is not to stop the intake of sugar all of a sudden. Even if you intend to do this, you should make sure that you reduce it gradually. Consult a physician who can guide you on the cause of this tiredness, and also get your blood sugar examined at regular intervals, so that the possibility of diabetes will be ruled out.


  1. Lilma Reply
    December 6, 2011 at 7:14 pm

    I find this article to be very helpful. Could not have been explained better!

  2. Y.L.E Reply
    May 27, 2012 at 6:52 am

    A helpful article but the grammer was rather poor.

  3. Anonymous Reply
    May 17, 2015 at 9:44 am

    Very helpful and informative, told me things I did not know about myself, thanks!

  4. Anonymous Reply
    June 13, 2015 at 2:50 pm

    YLE, grammar???

  5. Anonymous Reply
    September 9, 2015 at 3:22 pm

    Popping stuffs??

  6. Tricia Devine Reply
    August 6, 2015 at 7:31 am

    I thought the article explain this topic very well. It was easy to understand too! In response #2's comment, the grammar was fine. I appreciate the fact that the writer of the article did not use big words, or words that I would have to look up on the dictionary! Thank you! Please do not change your grammar when writing articles like this!

  7. Patrice Reply
    August 8, 2015 at 2:51 pm

    Very good article.

  8. Ram Reply
    January 9, 2016 at 12:48 am

    This article explanation is clear and understandable, even for a novice reader.

  9. Anonymous Reply
    March 2, 2016 at 11:27 am

    Good article, thanks!

  10. Lala Reply
    May 12, 2016 at 8:24 am

    Very informative, thank you!

  11. Julie Bourland Reply
    May 28, 2016 at 11:34 am

    Awesome 💛

  12. Dan Reply
    July 27, 2016 at 5:20 pm

    In the first paragraph, where it says when the metabolism is sped up, you feel tired and sleepy…. is an improperly constructed sentence thus making it incorrect. The remaining explanation, the detail is good even though sentence construction would be improved.

    • Garry Reply
      May 2, 2018 at 6:46 pm

      Dan, if you are going to criticise anyone’s grammar, try quoting the passage with the correct usage of quotation marks before you go attacking anyone else. Also, what is the meaning of, “and sleepy…”? Three dots or an ellipsis forgoes the remaining sentence, not your own lack of punctuation or correct use of grammar. People in glass houses, etc.

  13. Sara Reply
    July 6, 2016 at 7:08 am

    Great article

  14. David Reply
    August 6, 2016 at 10:42 am

    Good reading

  15. Nana Reply
    August 23, 2016 at 2:28 pm

    Great article.

    It wasn't meant to be an English lesson, anyone can clearly get the contents of the article.

    So stop stressing about grammar.

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