Vegetables are high in fiber, vitamins, and nutrients. Even with conflicting nutritional advice, all nutritionists can agree that you should eat more vegetables.
While typically low in sugar, some vegetables have more sugar than others. The list below is for vegetables with the least sugar. The sugars in this article are listed in both grams and teaspoons (tsp). One packed teaspoon of sugar weighs 4 grams.
Low sugar vegetables include white button mushrooms, watercress, spinach, lettuce, beet greens, kale, sprouts, celery, and broccoli. They range in having 0 - 2.3 grams of sugar per serving. That is around half a teaspoon at most.
For more vegetables low in sugar see the nutrient ranking of 200 vegetables low in sugar.