In patients with atrophic gastritis and urinary calculi, drinking a lot of beer will lead to relapse or aggravate the disease. This is because the wort of brewing beer contains calcium, oxalic acid, uridine and purine nucleotides. Their interaction can more than double the amount of uric acid in human body, which not only promotes the formation of gallstones, but also induces gout. As I said just now, drinking beer in moderation can prevent diseases, but the extremes meet. If you drink too much, your body's reaction ability will be reduced. Australian experts have found that people who drink more than 5 liters of beer a day are most likely to develop rectal cancer.