Vegetables are rich in vitamins, minerals, and dietary fiber. Eating a moderate amount of vegetables can promote intestinal peristalsis, facilitate bowel movements, provide the micronutrients the body needs, exert antioxidant effects, and ensure the normal functioning of various organs in the body. However, excessive intake of vegetables can have the following harms:
Certain vegetables contain high levels of oxalic acid, which can easily form stones.
Vegetables like spinach, celery, and tomatoes contain high levels of oxalic acid, which can combine with calcium in other foods to easily form calcium oxalate stones. This is one of the reasons why many women who prefer a vegetarian diet are prone to kidney stones.
It can easily worsen the condition of existing stones.
Most vegetables are alkaline foods. For patients who already have calcium phosphate stones, consuming large amounts of alkaline foods daily can increase the number of stones and make them difficult to excrete from the body.
Affects the absorption of calcium and zinc.
Pregnant women and children, adolescents, and young people in their growth and development stages, a large intake of vegetables can hinder the absorption of calcium and zinc in the body, affecting children's intellectual development and bone growth.
Not easily digested.
Vegetables high in crude fiber, such as celery and spring bamboo shoots, are difficult to digest after being consumed in large quantities and are not suitable for people with gastrointestinal diseases. Crude fiber can also easily cause gastric bleeding or esophageal variceal bleeding in patients with cirrhosis, worsening their condition.