炊汤经宿洗面令人无颜色洗体令人成癣未经宿者洗面令人亦然
食驴肉吃荆芥茶杀人食鳖肉同苋菜杀人茅舍漏滴在肉上食之杀人此三事尤宜戒之(三说
本草
)
食谨勿多多则生病饱勿便卧卧则心荡心荡多失性食多生病则药不行(集异记)
浙中人因食瓜匏多要发吐泻霍乱谓之发暴以致于有不救者为何瓜匏种之在土不久值
时暖
易长易成使人食之则发暴若同香 共食则可免香 今香薷也人使香 食瓜子是矣(名医录)
凡人食欲少而数不欲顿而多食不欲急急则损脾法当熟嚼令细冷食不欲热水漱口热食不用
冷水漱口食必先食热然后食冷
酒有大毒大热大寒凝海唯酒不冰其至热也饮之昏乱易人本性其至毒也若解风寒宣血脉消
邪气引药势不过于酒也若醉饮过度盆倾斗量毒瓦斯攻心穿肠腐胁此丧生之源也(修真秘诀)
一日之忌暮无饱食一月之忌晦无大醉一岁之忌暮无远行终身之忌暮无燃烛行房咸伤筋醋
伤骨
饱伤肺饥伤气久视伤血久卧伤气久立伤骨久坐伤肉久行伤筋凡向北勿安床勿面北坐夜卧勿覆
其头人魇勿令燃灯唤之定死无疑正月寅日烧白发吉凡寅日剪手甲午日剪足甲又烧白发吉(戎
幕闲谈)
食黄颡鱼不可服荆芥吴人魏几道志在妻家啖黄鱼羹罢采荆芥和茶而饮少焉足底奇痒上彻
心肺跣足行沙中驰宕如狂足皮皆破欲裂急求解毒药饵之几两日乃止
用铜器盖子盖住食物，器皿上凝结的汗珠滴入食物中，会使人患上恶疮和体内深部的疽病。这是因为食物的性质忌讳铜器。
用煮过汤的水放置过夜后用来洗脸，会使面色晦暗无光；用来洗澡，则会让人生出癣疾。如果是没有放置过夜的汤水，用来洗脸也会产生同样的后果。
吃驴肉时饮用荆芥茶，会导致死亡；吃鳖肉时同食苋菜，也会导致死亡。茅草屋顶漏下的雨水滴在肉上，人吃了这种肉也会致死。这三件事尤其需要警惕。（出自《本草》中的三种说法）
饮食务必谨慎，切忌过量，吃得太多就会生病；吃饱后不要立即躺下，躺下则会导致心气动荡，心气动荡多会导致性行为方面的过失。吃得过多容易生病，一旦生病，药物的疗效就无法发挥。（出自《集异记》）
浙江一带的人因为吃瓜果、瓠瓜过多，想要催吐，结果引发暴发性吐泻霍乱，称之为“发暴”，甚至导致无法救治的后果。为什么瓜果种植在土里时间不长，遇到温暖的气候就容易生长成熟？人们食用它们就会引发“发暴”。如果与香薷一起食用，就可以避免。香薷就是现在的香薷。有人让仆人吃香薷配瓜子，就是这个道理。（出自《名医录》）
普通人进食应当少量多次，不应当一顿吃得很多；进食不要急促，急促会损伤脾胃。应当细嚼慢咽，冷食为宜，不要用热水漱口；热食则不用冷水漱口。进食时应当先吃热的食物，然后再吃冷的食物。
酒具有大毒、大热之性，又能使海水在大寒时节不结冰，这是因为它至热的原因。饮酒会让人昏乱，改变人的本性，这是因为它至毒的原因。至于解除风寒、宣通血脉、消除邪气、引导药势，没有什么比得上酒的效力。但是如果醉酒过度，像用盆倒、斗量那样大量饮酒，毒气会攻心，腐蚀肠胃和胁肋，这是丧生的根源。（出自《修真秘诀》）
一天的禁忌：傍晚不要饱食。一个月的禁忌：月末（晦日）不要大醉。一年的禁忌：暮年不要远行。终身的禁忌：晚上不要点着蜡烛行房事，这会伤害筋脉；醋吃多了伤骨；饱食伤肺；饥饿伤气；长时间用眼伤血；长时间卧床伤气；长时间站立伤骨；长时间坐着伤肉；长时间行走伤筋。凡是床铺不要向北安放，不要面向北方坐，夜里睡觉不要蒙着头。人被鬼压床（魇）时，不要让点亮灯火，呼唤他一定会死，毫无疑问。正月寅日烧掉白发是吉利的。凡是寅日剪手指甲，午日剪脚趾甲，又烧掉白发也是吉利的。（出自《戎幕闲谈》）
吃黄颡鱼（黄骨鱼）时不可服用荆芥。吴地人魏几道有志于在岳母家吃饭，吃完黄鱼羹后，采摘荆芥泡茶喝。不久之后，脚底奇痒难忍，痛感直透心肺，他赤脚在沙地上奔跑，狂乱如痴，脚皮全部破裂，好像要裂开一样。急忙寻找解毒药服用，过了几天才停止。
Covering food with a copper vessel lid causes sweat condensing on the vessel to drip into the food, leading to the development of malignant sores (Echuang) and internal deep-rooted abscesses (Neiju). This is because the nature of food忌讳 (avoids/dislikes) copper vessels.
Using water from boiled soup that has been left overnight to wash the face will cause a sallow complexion; using it to bathe the body will lead to tinea (Xuan). Using soup water that has not been left overnight to wash the face will also produce the same effect.
Consuming donkey meat while drinking Schizonepeta tea (Jingjie Cha) can be fatal. Eating softshell turtle meat together with Amaranth (Xiancai) can also be fatal. Drinking rainwater dripping from a thatched roof onto meat, and then consuming such meat, can also cause death. These three matters require particular caution (Three sayings from Bencao).
Diet must be cautious; avoid overeating, as excessive intake leads to illness. Do not lie down immediately after feeling full, as this causes cardiac agitation (Xindang), which often results in sexual misconduct. Overeating easily causes disease; once diseased, the efficacy of medicine cannot take effect (from Jiyiji).
People in Zhejiang often induce vomiting due to excessive consumption of melons and gourds, resulting in sudden onset of vomiting, diarrhea, and cholera-like symptoms, termed "Fa Bao" (Sudden Onset), which can even lead to untreatable conditions. Why do melons and gourds, planted for a short time in the soil, grow and mature quickly when the weather warms up? Consuming them causes "Fa Bao." If consumed together with Mosla herb (Xiangru), it can be avoided. Xiangru refers to Mosla chinensis today. Some people have servants eat Mosla with melon seeds, illustrating this principle (from Mingyilu).
Generally, one should eat small amounts frequently rather than large meals at once. One should not eat hastily, as haste damages the Spleen. Food should be chewed thoroughly and swallowed slowly; cold food is preferred, and hot water should not be used for rinsing the mouth after eating cold food. Conversely, cold water should not be used for rinsing the mouth after eating hot food. Meals should begin with hot food followed by cold food.
Alcohol possesses great toxicity and heat properties. It prevents seawater from freezing even in extreme cold due to its intense heat. It causes confusion and alters human nature due to its intense toxicity. However, regarding resolving wind-cold, promoting blood circulation, eliminating pathogenic factors, and guiding medicinal potency, nothing surpasses alcohol. Yet, if one drinks excessively, pouring like basins and measuring like pecks, the toxic qi attacks the heart, corrodes the intestines and stomach, and rots the hypochondrium, becoming the source of death (from Xiuzhen Mijue).
Taboos for a day: Do not eat until full in the evening. Taboos for a month: Do not get heavily drunk on the last day of the lunar month. Taboos for a year: The elderly should not travel far. Lifelong taboos: Do not engage in sexual intercourse with candles lit at night, as this injures the sinews; excessive vinegar injures the bones; overeating injures the Lungs; hunger injures Qi; prolonged visual strain injures Blood; prolonged lying down injures Qi; prolonged standing injures bones; prolonged sitting injures muscles; prolonged walking injures sinews. Beds should not be placed facing North, nor should one sit facing North. At night, do not cover one's head while sleeping. If afflicted by sleep paralysis (Ren Yan), do not light a lamp; calling out to the person will surely cause death without doubt. Burning white hair on the Yin day of the first lunar month is auspicious. Cutting fingernails on Yin days and toenails on Wu days, along with burning white hair, is also auspicious (from Rongmu Xiantan).
When eating Yellow Catfish (Huangsang Yu), one must not consume Schizonepeta (Jingjie). A person from Wu named Wei Jidao, dining at his wife's home, ate yellow fish soup and then drank tea brewed with freshly picked Jingjie. Soon after, he experienced severe itching in the soles of his feet, with pain penetrating to the Heart and Lungs. He ran barefoot in the sand, acting madly, with his foot skin cracking open. He urgently sought antidotes, took them, and the symptoms subsided after several days.