The alcohol in beer can interfere with the body’s ability to burn stored fat, contributing to the development of the so-called “beer belly”. What’s more, alcohol is metabolized in the liver, and making the liver metabolize excessive quantities of alcohol can eventually cause it to swell.
Beer places you at risk for dehydration. Owing to its alcohol content, beer is a diuretic, which means that it promotes urination. Drinking too much beer without replacing water lost through more frequent urination can precipitate dehydration, causing symptoms such as throbbing headaches and weakened pulses.