1. Storing Vegetables for a Long Time Office workers often prefer to do a big weekly shopping trip and store the vegetables at home to eat slowly. While this saves time and is convenient, it's important to know that vegetables lose a large amount of nutrients each day they are stored. For example, under normal conditions (20°C), spinach loses up to 84% of its vitamin C content after just one day. Therefore, the storage time for vegetables should be minimized. If you must store them, choose a dry, well-ventilated, and light-proof place.
2. Throwing Away the Part with the Most Vitamins Some conventional vegetable preparation methods also affect their nutrient content. For instance, some people discard the bean sprouts' cotyledons to eat only the sprouts, but the cotyledons actually contain 2-3 times more vitamin C than the sprouts. Another example is squeezing out the juice when making dumpling filling, which can lead to a loss of over 70% of the vitamins. The correct method is to mix the chopped vegetables with a little oil before adding salt and seasonings. This "oil-coating-the-vegetables" method prevents the dumpling filling from becoming too watery.
3. Stir-frying with a Low Flame Vitamins C and B1 are both heat-sensitive. Therefore, avoid stir-frying with a low flame that simmers the food; instead, use a high flame. Additionally, adding a little vinegar helps preserve the vitamins. Some vegetables are also better suited for eating raw in salads, such as cucumbers and tomatoes.
4. Not Eating the Finished Dish Immediately Many people like to leave cooked food in the pot to stay warm or in a thermal container to eat later. This also results in a significant loss of nutrients. Imagine how wasteful it would be to painstakingly prepare a meal only for it to become nutritionally deficient because it wasn't eaten right away.
5. Eating Vegetables but Not the Soup When stir-frying, a large amount of nutrients from the vegetables dissolve into the cooking liquid. It's a shame not to drink it.
6. Washing Vegetables After Cutting Them Chefs in cafeterias often cut vegetables first and then rinse them together to save time. Many people think nothing of this, but it also causes a large amount of vitamins to be washed away into the water.
7. Preferring Stir-fried Dishes Many people on a diet believe that stir-frying vegetables with meat can reduce fat intake, but vegetables are actually more adept at absorbing oil.
8. Being a Vegetarian but Not an Omnivore The number of vegetarians is on the rise. While it's beneficial for preventing arteriosclerosis, an all-vegetarian diet is not ideal for several reasons: First, the human body needs to ingest a certain amount of cholesterol from meat daily, and a moderate amount of cholesterol is also beneficial for cancer prevention. Second, a purely vegetarian diet can lead to insufficient protein intake, which may easily cause digestive tract tumors. Third, it can result in a deficiency of vitamin B2. Fourth, because vegetables are generally low in zinc, vegetarians are also prone to severe zinc deficiency. A better approach is to combine foods according to your body's specific needs. This way, you can achieve the benefits of a vegetarian diet while avoiding the potential harm it may cause.
9. Eating Raw Vegetables Without Washing Them Vegetable pollution is becoming increasingly severe, with residues from various pesticides and parasitic bacteria. Therefore, it is best to wash and peel raw vegetables thoroughly.