New evidence suggests that weight gain might not be the only thing you have to worry about when it comes to excess sugar consumption. A new study published in the Journal of Clinical Investigation found that having high blood glucose levels could be bad for your brain and not just your body.
In the study, researchers bred mice to develop a condition similar to Alzheimer's by increasing their blood sugar. They found that the increased blood sugar levels in these mice lead to increased levels of "amyloid beta" in their brains – pieces of proteins thought to clump together and form plaques in the brains of people with Alzheimer's – by 20%. The researchers also doubled the blood sugar levels in older mice who had already developed these plaques, their amyloid beta levels rose by 40%.
The researchers believe that the increase in blood sugar levels changed the activity of the brain, increased their amyloid beta levels, ultimately leading to more plaque formed. The study suggests that it is likely that people with type 2 diabetes have an increased risk of developing Alzheimer's.
This isn't the first study to link sugar and Alzheimer's. High blood sugar levels seem to increase overall dementia risk and quicken the transition from mild cognitive impairment to Alzheimer's.
If weren't already convinced to stay away from added sugar for your physical health, this new study may encourage you to stay far away from it for your brain health.