Can people with weak spleen and stomach function eat watermelon and drink beer?
Generally speaking, people with weak spleen and stomach functions are usually advised not to eat watermelon or drink beer. The reasons are as follows:

Watermelon is a cold-natured fruit, and excessive consumption may easily increase the burden on the spleen and stomach. Individuals with weak spleen and stomach functions already have compromised digestive systems; consuming watermelon may further damage the yang energy of the spleen and stomach, worsening their function and potentially causing symptoms such as indigestion and diarrhea. For those with weak脾胃, eating watermelon on an empty stomach may irritate the gastric mucosa and stimulate excessive secretion of gastric acid, thereby exacerbating gastrointestinal discomfort.
Beer is considered a highly heating beverage, and its consumption may intensify internal dampness and heat in the stomach, which is detrimental to spleen and stomach health. People with weak spleen and stomach functions may experience further damage to their digestive functions after drinking beer, leading to conditions such as spleen deficiency or cold deficiency of the spleen and stomach. The alcohol content in beer can irritate the gastric mucosa, potentially causing or worsening symptoms such as indigestion and reduced appetite in individuals with脾胃 cold deficiency.
Individuals with weak脾胃 should incorporate warm, easily digestible foods into their daily diet, such as Chinese yam, red dates, and millet porridge, to support the recovery of spleen and stomach functions. They should avoid eating raw and cold fruits and vegetables, as well as spicy or irritating foods. Additionally, they should refrain from consuming stimulating beverages such as strong tea, coffee, and alcohol.