A nutrient-dense cruciferous vegetable, raw broccoli contains 6.64 g of carbs and 2.6 g of fiber, netting only 4.04 g of carbs per 100 g. Keto GT Diet Try it raw in a salad, lightly steamed, or in a stir-fry tossed with garlic, ginger, and a touch of olive oil. Another nutrient-dense leafy vegetable, Swiss chard packs only 3.74 g of carbs per 100 g.