Friends, here are a few common summer dishes you might often eat, but their combinations may not be nutritious. So, a reminder: it's not advisable to eat them frequently. However, with a few minor changes, they can be both delicious and nutritious.
1. Spicy and Sour Cucumber with Cold Noodles (Cucumber + Chili)
Cucumbers contain vitamin C decomposing enzymes, which can destroy the vitamin C in chili peppers, reducing their nutritional value.
2. Scallion and Century Egg Tofu (Tofu + Scallion)
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 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拌豆腐 (scallion拌豆腐) or stir-fried tofu with scallions are consumed long-term, it can lead to calcium deficiency in the body, increasing the risk of symptoms like cramps, chondropathy, and fractures. Some people also use chopped scallions to season tofu when cooking, which is equally unfavorable. For vegetables high in oxalic acid, such as spinach, fresh bamboo shoots, or bitter melon, it's best to blanch them in boiling water first to remove most of the oxalic acid before cooking to prevent the formation of calcium oxalate.
3. Banana Yogurt (Banana + Yogurt)
Yogurt can help lower cholesterol. Drinking yogurt on an empty stomach can be problematic due to the high acidity of the stomach environment, which makes it difficult for lactic acid bacteria to survive, thereby reducing the health benefits of the yogurt. Eating it with bananas is also not beneficial for your health.
4. Spiced Tea Eggs (Tea + Eggs)
Strong tea contains a significant amount of tannic acid. Tannic acid can solidify proteins in food into indigestible substances, 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 chelate with the minerals in pig's trotters, interfering with or reducing the body's absorption of these elements.
6. Green Pepper and Beef Liver (Beef Liver + Vitamin C-rich foods)
Because the vitamin C in fruits and vegetables has strong reducing properties, it can be easily oxidized by the copper ions in beef liver, thereby losing its physiological activity.