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The Olfactory Dimension: Can You Smell High or Low Blood Sugar?

04 Sep 2025 by Joshua J. Keith, D.O.

The Olfactory Dimension: Can You Smell High or Low Blood Sugar?

The relationship between our sense of smell and our bodily functions is a complex one. While it's common knowledge that a person can often tell if someone is ill or stressed based on their body odor, the connection between our sense of smell and blood sugar levels is a lesser-known one. Can you smell high or low blood sugar? In this article, we'll delve into the fascinating world of the olfactory dimension and explore the link between our sense of smell and blood sugar levels. Sneaky Symptoms Of High Blood Sugar And What To Do About Them

The Science Behind Smelling Blood Sugar

Research has shown that our bodies are capable of producing unique volatile organic compounds (VOCs) that can be detected by our sense of smell. These VOCs are produced by our metabolic processes, including glucose metabolism. When our blood sugar levels are fluctuating, our bodies produce different VOCs that can be smelled by others. This phenomenon is known as "osmesthesia," or the sense of smell of bodily chemicals. The Top 15 Best Foods To Control Your Blood Sugar Levels

Smelling High Blood Sugar

High blood sugar levels can produce a unique set of VOCs that can be detected by our sense of smell. These VOCs are often described as sweet, fruity, or floral. Some people with diabetes have reported that they can smell high blood sugar levels, often described as a sweet or metallic odor. This phenomenon is often referred to as "diabetic body odor." However, it's essential to note that not everyone with high blood sugar levels will be able to smell them, and the ability to do so is not a reliable indicator of blood sugar levels.

Smelling Low Blood Sugar

Low blood sugar levels, on the other hand, can produce a different set of VOCs that can be detected by our sense of smell. These VOCs are often described as metallic, sour, or acidic. Some people with diabetes have reported that they can smell low blood sugar levels, often described as a sour or metallic odor. However, similar to high blood sugar levels, not everyone with low blood sugar levels will be able to smell them, and the ability to do so is not a reliable indicator of blood sugar levels.

The Role of Smell in Blood Sugar Management

While the ability to smell high or low blood sugar levels is not a reliable indicator, it can still play a role in blood sugar management. By being aware of the unique VOCs produced by our bodies, we can take steps to manage our blood sugar levels more effectively. For example, if you notice a sweet or fruity odor, it may be a sign that your blood sugar levels are high and need to be brought down. Similarly, if you notice a metallic or sour odor, it may be a sign that your blood sugar levels are low and need to be brought up.

Conclusion

The connection between our sense of smell and blood sugar levels is a complex one. While we can't rely on our sense of smell to accurately detect high or low blood sugar levels, it can still play a role in blood sugar management. By being aware of the unique VOCs produced by our bodies, we can take steps to manage our blood sugar levels more effectively. If you're struggling to manage your blood sugar levels, consider speaking with a healthcare professional to develop a personalized plan. And who knows, you might just develop a new appreciation for the power of your sense of smell! Control Blood Sugar And Reverse Prediabetes A 5 Step Plan

References and Further Reading