Vegetables VS Fruits: Which Is More Nutritious?
Many people believe that fruits and vegetables have similar nutritional value. Some think that by skipping vegetables and eating a jin (about 500g) of fruit a day, they can get enough nutrients and even lose weight. Consequently, their breakfasts and dinners become fruit-only meals. This line of thought is common among many women, but the question is, can fruits completely replace the role of vegetables? Is there really no nutritional difference between the two?
According to experts, there are certain nutritional differences between fruits and vegetables. Nutritionists recommend that people consume a certain amount of vegetables daily because vegetables have the following functions:
Firstly, the vast majority of vegetables contain the six major categories of nutrients that the human body needs daily, although their protein content is relatively low in quantity and quality, and their fat content is also very low. Vitamins are the main nutritional components in vegetables. Most vegetables are rich in vitamin C, and they also contain vitamins A and B. At the same time, vegetables also contain substances other than nutrients, known as bioactive substances, such as lycopene, chlorophyll, alkaloids, and polyphenols. These substances can remove waste from the body, slow down the aging process, and prevent tumors and cardiovascular diseases.
Secondly, the human body has a pH level, and under normal conditions, a slightly acidic pH maintains the body's optimal function for various activities. The rich mineral elements in vegetables, such as calcium, potassium, magnesium, phosphorus, and iron, are alkaline elements that can regulate the body's acid-base balance. The total amount of mineral elements in fruits is less than that in vegetables.
Thirdly, vegetables also have certain therapeutic effects. For example, vegetables rich in antioxidants, like broccoli and tomatoes, can prevent cancer. Low-calorie vegetables like cucumbers, winter melon, radishes, and beans can aid in weight loss. Diabetics can alleviate their symptoms by eating more pumpkin and bitter melon. Vegetables with special aromas, like celery and seaweed, can help lower blood pressure. Professor Tang pointed out that these are only auxiliary therapeutic effects of vegetables and not medical treatments.
Fourthly, not only is the dietary fiber content in vegetables much higher than in fruits, but it also contains insoluble fiber, which promotes intestinal peristalsis and clears accumulated toxins in the intestines. It can effectively prevent and treat constipation and hemorrhoids, and reduce the risk of colorectal cancer—effects that cannot be achieved by eating fruit. The fiber in fruits is mainly soluble fiber—pectin, which is not easily absorbed and can slow down the rate of stomach emptying.
In conclusion, the nutritional content in vegetables is relatively richer than in fruits. Fruits certainly cannot replace vegetables, and vice versa—this does not mean that vegetables can replace fruits. Fruits also have their unique functions; for example, most fruits contain various organic acids that can stimulate the secretion of digestive fluids. Therefore, one's daily diet should primarily consist of 400-500 grams of fresh vegetables, supplemented by an appropriate amount of 100-200 grams of fruit, to achieve a balanced nutritional diet that is beneficial to health.