Autumn is the season of harvest, while winter is the season of consuming that harvest. Due to climate and storage conditions, certain foods can become "poisons" during winter. This article specifically warns against eating or minimizes consumption of these five foods that are prone to causing poisoning when consumed in winter. In winter, greenhouse-grown vegetables and fruits are the foods most likely to cause food poisoning.Plants grown in greenhouses require higher pesticide usage. Combined with winter's cold temperatures, which hinder plants' ability to fully metabolize pesticides during photosynthesis, inadequate washing can lead to pesticide poisoning when consuming winter vegetables and fruits. Below, we highlight some of the most common foods prone to becoming "poisons" in winter—be sure to take note.
Spotted Sweet Potatoes
Spots on sweet potatoes indicate contamination by black spot fungus, causing dark brown patches that make the potato hard and bitter. This toxin cannot be destroyed by boiling, steaming, or baking. Consuming sweet potatoes with black spot fungus, whether raw or cooked, may cause poisoning.
Old, Stored Pumpkins
High in sugar content, prolonged storage can cause anaerobic fermentation in the flesh, altering its texture and making it unhealthy to consume. Yellowed Silver Ear Mushrooms
Yellowed, spoiled silver ear mushrooms are contaminated with Bacillus cereus. Once spoiled, they must never be eaten, as consumption can cause dizziness, stomach pain, diarrhea, and other poisoning symptoms.Sprouted potatoes
The sprouts, root buds, and greenened areas of sprouted potatoes contain high levels of solanine. Consumption can cause throat irritation, nausea, vomiting, abdominal pain, and in severe cases, death.
Discolored Seaweed
If seaweed turns blue-purple after soaking in cold water, it indicates contamination by toxic substances before drying and packaging. Such seaweed is harmful to humans and should not be consumed.
Rotten Chinese Cabbage
As Chinese cabbage decomposes, it produces toxins. The resulting nitrites (derived from nitrates) can cause hemoglobin in the blood to lose its oxygen-carrying capacity, leading to severe oxygen deprivation in the body. Symptoms include dizziness, nausea, vomiting, abdominal distension, rapid heartbeat, and cyanosis (bluish discoloration of the skin). In severe cases, convulsions, coma, and even life-threatening conditions may occur.
Winter's cold, especially in northern regions, may tempt one to consume more beef or lamb. However, root vegetables like yams, sweet potatoes, potatoes, and radishes are actually the most suitable winter foods. These land-grown crops belong to the category of storing and contracting foods, making them ideal for nourishing yin during winter. Additionally, foods that disperse yang energy should be minimized—chives, for instance, are inadvisable.