What's really at work here is what people often refer to as food incompatibility. Normally, incompatible foods may not evoke a strong reaction, but that also varies from person to person. Jin Jie was already physically weak, and with Luomeiyan having him drink large amounts of Chrysanthemum tea over an extended period, combined with incompatible foods in his diet such as chicken or celery, toxins accumulated over time and naturally caused a reaction.
Xiao Linshuang grabbed a yolk pastry and took a bite, saying, "Sister, do you also understand medical science? Gosh, if it hadn't been for seeing you spacing out while making tea that day, I would've never thought that poison could be administered in such a manner!"
Lin Yuan secretly nodded to herself. She understood food incompatibility very well; it was just hard to imagine that a plot from a movie she had seen could actually happen in reality, and in this era no less.