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Do Artificial Sweeteners Cause Hashimotos?

Writer's picture: Tara PetersonTara Peterson



The popularity of artificial sweeteners has increased over the past couple of decades.  It is easy to see why, in our efforts to reduce sugar consumption, it seems too good to be true, that we may have our cake and eat it too. Generally, things that seem too good to be true are just that. In this article, we follow the research and the case of a 52-year-old woman and learn the correlation between artificial sweeteners and autoimmune conditions. It has long been known that sweeteners such as saccharin, aspartame, sucralose, acesulphame K, and neotame cause obesity and malignancies.  With the increase in autoimmune conditions and the use of artificial sweeteners, we will review a study that shows the correction between the two. Hashimoto’s Thyroiditis is when your body incorrectly identifies your thyroid as a target to destroy and eliminate. To learn more about this and thyroid conditions check out our prior article: What is Really Going On With Your Thyroid?  


In the case study, a 52-year-old woman consumed artificial sweeteners daily over 14 years. She noticed during this time that she gained 20 lbs, and was diagnosed with Hashimoto’s. The good news is that after she removed artificial sweeteners from her diet, her thyroid numbers went back into the normal range and she lost weight. Other studies have shown that artificial sweeteners reduce the amount of beneficial bacteria in the gut microbiome, which can lead to weight gain. Artificial sweeteners also appear to raise insulin levels.  Even though they do not technically raise blood glucose levels, they cause an increase in insulin which triggers the body to store fat.  In addition, over time, this pattern contributes to insulin resistance.  This pattern we see plays out in the labs we order and analyze regularly.  When we see glucose and A1C numbers look pretty good, but see very high insulin levels, we often find that artificial sweetener consumption is part of the equation. More research is needed to come to a direct conclusion about artificial sweeteners causing autoimmune issues, however, case studies like this combined with research showing the negative effects of artificial sweeteners, it is our opinion, that there is no benefit to using artificial sweeteners. 


The good news is that there are some safe alternatives to artificial sweeteners if you have a sweet tooth, and can help you maintain your goals toward healthy living. Some natural, plant-based low-calorie sweeteners include Sugar alcohols (erythritol and xylitol), stevia, monk fruit (luo than guo), and thaumatin. These sweeteners, unlike synthetic sweeteners, are plant-based and do not have negative side effects for most people when used in moderation. 



If you are struggling with weight management, low energy, thyroid, or hormone issues, and have not been tested to find the root cause of your health issues, that is the best place to start toward reclaiming your health.  Our office offers testing and health coaching services to help you live a vibrant life. 





This information should not be substituted for medical or chiropractic advice. Any and all healthcare concerns, decisions, and actions must be done through the advice and counsel of a healthcare professional who is familiar with your updated medical history.


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