Chia seeds come from a flowering plant in the mint family that is native to Mexico and Guatemala. The seeds are rich in vitamins and omega-3 fatty acids, and are commonly added to smoothies, breakfast cereals, yogurt, energy bars and baked goods. You can find them in the organic section of supermarkets, at health food stores and online specialist. Use Chia Seed with Citrus, Chilli and Garlic Blend to prepare Niçoise Salad with Chia, Citrus and Chilli Crusted Tuna.