Some seemingly ordinary home-cooked dishes are also very nutritious, but when we are not fully aware of their effects, they can also harm our bodies. Let's take a look at which daily diets are gradually harming our bodies!
6 Harmful Home-Cooked Dishes
1. Scallion and Century Egg Tofu Salad
Tofu is rich in nutrients such as protein and calcium, while scallions contain a large amount of oxalic acid. When tofu and scallions are combined, the calcium in the tofu reacts with the oxalic acid in the scallions to form calcium oxalate, a white precipitate that destroys the calcium in the tofu. Calcium oxalate is difficult for the human body to absorb. If dishes like scallion tofu salad or stir-fried tofu with scallions are consumed long-term, it can lead to calcium deficiency in the body, making one prone to conditions like cramps, chondropathy, and fractures.
Some people use chopped scallions to season tofu when cooking, which is also not advisable. For some oxalate-containing vegetables like spinach, fresh bamboo shoots, and bitter gourd, blanching them in boiling water first to remove most of the oxalic acid before cooking can prevent the formation of calcium oxalate.
2. Spicy and Sour Cucumber with Cold Noodles
Cucumbers contain vitamin C decomposing enzymes, which can destroy the vitamin C in chili peppers, reducing their nutritional value.
3. Banana Yogurt
Yogurt can help lower cholesterol. Drinking yogurt on an empty stomach can make it difficult for lactic acid bacteria to survive in the highly acidic stomach environment, reducing the health benefits of yogurt. Eating it with bananas is also not beneficial to health.
4. Green Pepper and Beef Liver
Because vitamin C in fruits and vegetables has strong reducing properties, it can be easily oxidized by copper ions in beef liver, thus losing its physiological activity.
5. Spiced Tea Eggs
Strong tea contains a significant amount of tannic acid, which can turn proteins into indigestible coagulated substances, affecting the human body's absorption and utilization of protein.
6. Spinach and Tofu Soup
Tofu contains magnesium chloride and calcium sulfate, while spinach contains oxalic acid. When these two foods are combined, they can form magnesium oxalate and calcium oxalate, which cannot be absorbed by the human body.
7. Braised Pig's Trotters with Soybeans
The alduronic acid residues in the dietary fiber of soybeans can chelate with minerals in pig's trotters, interfering with or reducing the human body's absorption of these elements.
How to Identify Harmful Substances in Food
1. Rongalit (Formaldehyde Sulfoxylate)
Also known as "sodium formaldehyde sulfoxylate," it is commonly found in processed grain and flour products, rice noodles, tofu, bean curd sheets, shark fin, and rice cakes. Consuming food containing Rongalit can damage the skin mucous membranes, kidneys, liver, and central nervous system. In severe cases, it can lead to cancer and deformities. Data shows that if an adult consumes more than 10 grams of Rongalit at once, it can be fatal.
2. Sudan Red
Sudan Red is a synthetic chemical compound often used industrially, for example, as a dye in solvents, engine oil, wax, and shoe polish. However, many unscrupulous vendors use it to color food, such as red salted duck eggs and cured meats. The use of Sudan Red in food production is strictly prohibited because this dye is highly carcinogenic.
3. Sulfur
Commonly found in dried goods such as chili, bamboo shoots, dried bean curd, daylilies, tremella, vermicelli, and Chinese medicinal herbs. It can also be found in dried fruits like melon seeds and peanuts, as well as preserved foods and steamed products like steamed buns, dumplings, and rice cakes. Consuming food containing sulfur can irritate the gastric mucosa, cause gastrointestinal dysfunction, affect the body's absorption of calcium, and may lead to chronic poisoning or even cancer.
4. Formaldehyde
Commonly found in aquatic products that have been soaked in formaldehyde, such as squid, sea cucumbers, and shrimp. It may also be added to foods like beef tripe, blood tofu, braised meat, sausages, bean products, dried noodles, watermelons, and red dates. Consuming food containing formaldehyde can cause chronic respiratory diseases; symptoms such as headaches, dizziness, and general fatigue; lead to anemia and a weakened immune system. In more severe cases, it can lead to malignant diseases such as nasopharyngeal cancer, myeloma, and lymphoma.
5. Malachite Green
Malachite green is a toxic chemical that is both a dye and a fungicide, and it is carcinogenic. It is often used to treat parasites, fungi, or bacterial infections in fish or fish eggs. It is particularly effective against fungi, so some fish farms use it to kill parasites in ponds. Malachite green is highly toxic and leaves high residues. It can enter the fish's body, and eating such fish can likely cause illness and cancer.