FAB RESEARCH COMMENT:
This animal study adds to the evidence that consumption of industrially produced trans fats (toxic fats found in hydrogenated vegetable oils) has harmful effects on brain function.
In an animal model of addiction - involving assessment of the effects of amphetamine on both place preferences and behaviour - a diet rich in trans fats was associated with increased amphetamine-related place preference (an index of vulnerability to addiction), as well as anxiety and hyperactivity symptoms.
A comparison diet rich in soybean oil increased anxiety and hyperactivity (without affecting place preference). Only animals supplementated with fish oil showed no increase in anxiety or agitation / hyperactivity.