Although the nutritional components of edible fungi are relatively balanced, their nucleic acid content is high, and nucleic acid will produce uric acid during metabolism. Due to the lack of urea oxidase in human body, uric acid cannot be oxidized, and the high content of uric acid in plasma will lead to the deposition of urate in tissues and may cause bladder stones. Therefore, the daily safe limit for adults to ingest nucleic acid is 4 grams. Among all kinds of edible fungi, Pleurotus ostreatus has the highest nucleic acid content, accounting for 4.06% of dry weight, equivalent to 0.5 1% of wet weight. Even so, it is safe for everyone to eat 392.5 grams of fresh Pleurotus ostreatus every day. If you eat other edible fungi with low nucleic acid content, this restriction can be relaxed. After cooking, the fruiting body of edible fungi can eat 20% more. When edible fungi are used as daily vegetables, there is no need to limit the amount of edible fungi.