Is beer or wine more gassy?

I assume you're talking about intestinal gas, or flatus, although heavily carbonated brews can cause bloating. Beer, especially homebrews, which contain live yeast, can really make you toot. The yeast winds up in your gut and starts to digest the sugars left over from your body's normal digestion process and creates extra CO2 gas, which, fortunately, isn't malodorous. However, many people create excess methane -- which stinks -- when consuming carbohydrates, especially grains -- pasta, cereal, chips and, alas, beer. The heavier the beer -- think porters, stouts, and heavy ales -- the more flatus is produced.