Can watermelon be eaten with beer?
Generally speaking, watermelon and beer can be consumed together. The detailed analysis is as follows:

Watermelon contains large amounts of water, vitamins, minerals, dietary fiber, and antioxidant substances. These components help relieve summer heat, quench thirst, promote diuresis and reduce swelling, and alleviate fatigue. Beer is primarily made from malt, water, yeast, and other ingredients through fermentation, and contains water, carbohydrates, amino acids, inorganic salts, and small amounts of ethanol. Drinking beer can help replenish bodily fluids, and the ethanol it contains may also produce a certain warming effect.
Both watermelon and beer contain significant amounts of water, and consuming them together can help the body replenish fluids lost due to sweating, providing a certain degree of thirst relief. Meanwhile, the sugars in watermelon and the carbohydrates in beer can supply energy to the body. Additionally, watermelon itself has a diuretic effect, and the alcohol in beer also has diuretic properties. Consuming them together may enhance this diuretic effect, helping to eliminate waste from the body, but could also lead to excessive loss of fluids and electrolytes, potentially causing dehydration.
When consuming these together, it is recommended to moderate the quantity. Excessive consumption of watermelon may lead to discomforts such as bloating and diarrhea, while excessive beer drinking may irritate the stomach, causing pain, and could potentially increase the burden on the liver and kidneys.