Several Home-cooked Dishes Not Suitable for Frequent Consumption
Friends, you might often eat the following home-cooked dishes, but their combinations may not be nutritious. So, a reminder: it's best not to eat them frequently. With a few minor adjustments, they can be both delicious and nutritious.
1. Spicy and Sour Cucumber with Cold Noodles (Cucumber + Chili Peppers)
Cucumbers contain an enzyme that breaks down vitamin C, which can destroy the vitamin C in chili peppers, reducing their nutritional value.
2. Tofu with Scallions and Century Eggs (Tofu + Scallions)
Tofu is rich in nutrients like protein and calcium, while scallions contain a large amount of oxalic acid. When tofu and scallions are combined, the calcium in the tofu binds 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 tofu with scallions or stir-fried tofu with scallions are consumed long-term, it can lead to calcium deficiency, increasing the risk of conditions like leg cramps, chondropathy, and fractures. Some people use chopped scallions to season tofu when cooking, which is equally detrimental. For vegetables high in oxalic acid, such as spinach, fresh bamboo shoots, or bitter melon, it's advisable to blanch them in boiling water first to remove most of the oxalic acid before cooking, which can prevent the formation of calcium oxalate.
3. Banana Yogurt (Banana + Yogurt)
Yogurt can help lower cholesterol. Drinking yogurt on an empty stomach can be too acidic for the stomach, making it difficult for the lactic acid bacteria to survive in the gastric juice, thereby reducing the health benefits of the yogurt. Eating it with bananas is also not beneficial to your health.
4. Tea-flavored Spiced Eggs (Tea + Eggs)
Strong tea contains a significant amount of tannic acid, which can turn the protein in food into a hard-to-digest coagulated substance, affecting the human body's absorption and utilization of protein.
5. Braised Pig's Trotters with Soybeans (Pig's Trotters + Soybeans)
The alduronic acid residues in the dietary fiber of soybeans can form chelates with the minerals in pig's trotters, interfering with or reducing the body's absorption of these elements.
6. Green Pepper with Beef Liver (Beef Liver + Foods containing Vitamin C)
The vitamin C in fruits and vegetables is a strong reducing agent that can be easily oxidized by the copper ions in beef liver, losing its physiological activity.
7. Braised Beef with Radish (Carrot + White Radish)
Carrots contain ascorbic acid oxidase, which can destroy the vitamin C in white radishes, significantly reducing the nutritional value of both vegetables.
8. Spinach and Tofu Soup (Spinach + Tofu)
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.