Vegan content creator Mark Thompson decided to triple his fiber intake for a month to see the effects. Despite already eating a mostly plant-based diet, he was consuming only around 20 to 25 grams of fiber per day, much lower than the recommended 38 grams for men. By increasing his fiber intake to around 60 to 65 grams daily through supplements and whole foods, he experienced bloating, gas, and reduced hunger, but also improved digestion, energy, and reduced sweet cravings.

Through the experiment, Thompson discovered the importance of gradually increasing fiber intake to allow the gut microbiome to adapt. He found that while tripling fiber intake may not be necessary for everyone, most people would benefit from consuming more fiber than they currently do. Thompson plans to aim for 30 to 40 grams of fiber daily, incorporating high fiber tortillas, psyllium husk, and fiber sodas to achieve the benefits of fiber without discomfort.