We're often reminded to eat our 'five-a-day'. Yet, one nutritionist claims there's an even better way to ensure you receive all the necessary vitamins and minerals required for good health. Remarkably, this involves eating 30 different plants per week, including not just fruit and vegetables, but whole grains, nuts, seeds, herbs and spices. While it's certainly a challenge, Edward Mather, head nutritionist at FuelHub , asserts that isn't out of reach if you make some smart choices. "Thirty