Research has begun to make it clear that the modern American diet based on processed foods, and high fat high sugar foods filled with additives is literally killing us. And it is not just that this diet harms people who eat it physically. It is that it impairs us psychologically and intellectually.
Source: Bruce-Keller, AJ et al. Obese-type Gut Microbiota Induce Neurobehavioral Changes in the Absence of Obesity. Biological Psychiatry. 2015
So often we hear about the negative effects of a high-fat diet: The more fatty foods we eat, the more we put ourselves at risk for diseases, such as obesity and heart disease. But do high-fat foods threaten our psyche, too?
A study recently published in the journal Biological Psychiatry hypothesized a high-fat diet produces changes in health and behavior (partly) by altering a person’s gut microbiota. Prior research suggests “alterations in the microbiome may underlie the host’s susceptibility to illness, including neuropsychiatric impairment” — and present researchers decided to put this theory to the test. The transplanted gut microbiota from mice maintaining a high-fat or control diet to non-obese mice maintain a normal diet.
When evaluating recipient mice for changes in behavior and cognition, the mice who received microbiota from the mice maintaining a high-fat diet experienced increased anxiety, impaired memory, and repetitive behaviors. They also showed …