Some vegetables contain high levels of oxalate, which can easily form kidney stones. Vegetables like spinach, celery, and tomatoes contain significant amounts of oxalate, which can bind with calcium from other foods, leading to the formation of calcium oxalate stones. This is one of the reasons why many women who prefer a vegetarian diet are prone to developing kidney stones.
Can worsen existing kidney stone conditions
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.
Difficult to digest
Vegetables high in crude fiber, such as celery and bamboo shoots, are hard to digest in large quantities and are not recommended for patients with gastrointestinal diseases. Crude fiber can also easily cause gastric bleeding or esophageal variceal bleeding in patients with cirrhosis, worsening their condition.
Affects the absorption of calcium and zinc
For pregnant women and children and adolescents in their growth and development stages, consuming large amounts of vegetables can hinder the body's absorption of calcium and zinc, affecting a child's intellectual development and bone growth.
If you consume large quantities of vegetables solely for "dieting" or "feeling full," and reduce or eliminate meat and fish, it not only affects the body's intake and absorption of essential fatty acids and high-quality proteins, leading to protein malnutrition, but also hinders the absorption of rich nutrients such as calcium, iron, and zinc from non-vegetarian foods. Women should be particularly mindful of avoiding iron-deficiency anemia and calcium deficiency caused by excessive vegetarianism.