BLUE, INDIGO AND VIOLET
Blueberries, blackberries and acai berries: These pack a punch of dark-coloured antioxidant flavonoids, which improve blood flow to the brain and heart and enable better blood clotting. Having these fruits in your diet can improve your cholesterol levels and blood sugar metabolism, and help prevent high blood pressure. Best eaten raw, they can be added to smoothies or natural yogurt for a heart-friendly breakfast. Purple sweet potatoes and cabbages: These have antioxidants and are great scavengers of free radicals, which cause cell damage. Steam the purple sweet potatoes or make sauerkraut, a healthy side dish that goes well with roasted pork or turkey, by slow-cooking purple cabbage with apples and some cinnamon.