Archive · 18 Jul 2025
Can Smelling Food Increase Your Blood Sugar?
When you smell delicious food, your body gets ready to eat!
Your brain sends signals to release hormones like adrenaline, which tell your liver to make sugar.
This is normal, but if you have diabetes, your body may not handle this extra sugar well.
Smelling food can cause a small rise in blood sugar, especially with sweet smells.
Managing stress and knowing how your body reacts to food smells is important, especially if you have diabetes.
The smell of food can cause blood sugar levels to rise slightly before eating.
The brain reacts to the smell of food by releasing stress hormones, which prompt the liver to release glucose.
This response is part of the cephalic phase insulin response, preparing the body for digestion.
Sweet or carbohydrate-rich aromas may produce a stronger response.
For those with diabetes, this response can lead to blood sugar spikes if the body doesn't handle sugar properly.
- Who
- People with and without diabetes.
- What
- The smell of food can cause a slight rise in blood sugar levels before eating.
- When
- This happens before eating due to the body preparing for digestion.
- Where
- The effect happens in the body.
- Why
- The brain and body respond to the smell by releasing hormones and preparing for digestion.
General Response
Diabetes Perspective
Effect Magnitude
General Response
The smell of food alone may not cause a significant rise in blood sugar levels.
Diabetes Perspective
Smelling food triggers hormonal responses that raise blood sugar.
- Hormones Released
- Adrenaline, cortisol, and insulin
- Effect on Liver
- Causes glucose release
- Insulin Response
- Part of the cephalic phase
- Smell Types
- Sweet/carbohydrate rich aromas can produce stronger response
- Impact on Diabetics
- Can cause blood sugar spikes.