When it comes to edible seeds these two seeds as consider the superior. They protect from heart disease, lowers blood sugar, and cancer. But both are quite different from one another. Flax seeds which are flatter and slighter bigger than Chia seeds. They are also known as linseeds are brown or golden. Whereas Chia seeds are little and oval seeds known as Salba seeds occur in black and white varieties. Flax seeds are a rich source of omega-3 fats and Chia seeds are comparatively rich in fibers and bone-strengthening minerals.