Vegetables are highly rich in vital nutrients and they can keep you full for very long duration. Most of the vegetables are great source of fiber and water content. Veggies like spinach, bitter gourd, broccoli, peas, carrot etc. are really healthy and will not lead to weight gain if cooked in little oil. You can also include them in your salads, soups and pickles. Boiled vegetables can help in losing excess fat from the body. Eating green leafy vegetables will help in flushing out toxins from the body and the digestion process will become much better.