French fries are not your friend. In fact, research conducted at the University of Georgia and Penn State suggests that large amounts of french fries can change gut bacteria in ways that make it harder for your gut to tell your brain that you’re full. So yes, you eat some more. Science Daily reports on the research, which found that high fat feeding of rats reorganizes the gut-to-brain neural pathway and triggers inflammation in brain regions responsible for feeding behavior. The researchers found that could reverse those effects with a daily a low dose of a large spectrum antibiotic. Wait, there’s more. They also found, in a separate study, that animals fed blueberries had a completely different microbiota profile, less inflammation, and more stable blood sugar levels. The researchers are convinced that specific properties of bioactive foods may be used to target and improve the microbiota composition and overall health.