Recent research has pointed out that you should include white vegetables in your diet.

Cauliflower: The much-loved "gobi" contains sulfur compounds that are thought to fight cancer, strengthen bone tissue and maintain healthy blood vessels. Potatoes: The white potato brings with it plenty of fiber and potassium; 941 milligrams of potassium and 3.6 grams of fiber. It also contains vitamin C, vitamin B6 and magnesium.
Mushroom: Low in calories, fat-free, cholesterol-free, gluten-free, mushrooms are the ultimate food for those who are looking to control their weight.
Garlic: Garlic has antioxidant properties that can help boost your immune system, besides controlling high blood pressure and fighting colds and flu.
Source-Medindia