Can sword beans be eaten with cold-natured foods?
Generally, it is not recommended to consume sword beans with cold-natured foods. The detailed explanation is as follows:

Sword beans have a sweet taste and warm nature, and possess functions of warming the middle-jiao, regulating qi downwardly, benefiting the kidneys, and replenishing vital energy. They contain abundant dietary fiber, protein, amino acids, alkaloids, polysaccharides, flavonoids, as well as vitamins and minerals. Common cold-natured foods include watermelon, pear, bitter gourd, mung beans, and crab. These foods typically have effects of clearing heat, relieving fire toxicity, and detoxification.
Since sword beans are warm in nature, while cold-natured foods have heat-clearing and fire-purging effects, their properties are opposite. Cold-natured foods may irritate the gastrointestinal tract, and consuming them together with sword beans might increase the gastrointestinal burden, affect intestinal motility, and consequently cause symptoms such as indigestion, abdominal distension, and diarrhea. In individuals with sensitive constitutions, consuming sword beans together with cold-natured foods may lead to heatiness or exacerbate cold body conditions, such as sore throat and dryness in the throat.
Both sword beans and cold-natured foods should be consumed in moderation. Overconsumption may increase the gastrointestinal burden and cause discomfort. Additionally, sword beans contain toxic proteins such as lectins and hemolysins, which usually need to be thoroughly cooked before consumption to ensure food safety.