Some people may be sensitive to nightshade vegetables, which include tomatoes, peppers (bell peppers, chili peppers), eggplants, and potatoes.
While starchy vegetables like potatoes and sweet potatoes offer valuable nutrients, consuming them in excessive amounts may contribute to an imbalance in the diet
For individuals prone to kidney stones, a diet excessively high in oxalates may contribute to stone formation.
Certain vegetables are high in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAPs), which can cause digestive discomfort.
Some canned vegetables may contain added salt, sugar, or preservatives, which can detract from their nutritional value.
Conventionally grown vegetables may be treated with pesticides.