Why does red meat give u gas?

Everything gives gas: Everything gives us gas, and these small amounts of gas are normal. It may be a myth that red meat causes more gas than other foods do. Gas is more common with carbohydrates, fiber, and sugars. Eating red meat means eating protein, which has sulfur, so gas after eating red meat may smell worse and be more noticeable. One can compare lean and fatty meat to see if the fat is what's causing more gas.