A leading gastroenterologist has offered a simple explanation of the dietary causes behind the fatty liver epidemic, focusing on three key culprits. First, he explains the role of sugary drinks. Using the powerful phrase “liquid poison,” he clarifies that high fructose intake from sodas and juices is a primary pathway for the liver to create new fat (de novo lipogenesis), leading to the disease. Second, he discusses deep-fried foods. He simplifies the science by stating that the unhealthy fats in these foods act like “fuel” for liver inflammation and fat storage, directly worsening the condition. Third, he addresses ultra-processed foods. He explains that items from candies to instant noodles are detrimental because they combine the worst of both worlds—bad fats and bad sugars—while also adding artificial chemicals that the liver must filter. This doctor’s clear, simple explanations make the causes of fatty liver easy for anyone to understand.