Ultra-processed foods are products that go through multiple steps of industrial processing and often include additives such as preservatives, emulsifiers, and flavor enhancers. Ultra-processed Foods Increase Risk of MS RelapsesOver the five-year study period, 208 participants were diagnosed with clinically definite multiple sclerosis. Participants who consumed the most ultra-processed foods had about 30 percent more relapses over five years than those who ate the least. How Ultra-processed Foods May Affect the BrainThe researchers proposed several biological explanations for why ultra-processed foods may worsen inflammation in MS. That includes choosing whole grains over refined grains and avoiding or limiting processed foods as much as possible.