The comparison of seeds and sprouts from different botanical sources is very important, due to the fact that they vary in their polyphenolic composition and antioxidant activity. Mung bean seeds are the cheapest and germinate the easiest, when compared to radish, broccoli and sunflower seeds. However, both seeds and sprouts of this plant exhibit the lowest antioxidant activity and phenolic contents, being lower than those of radish, broccoli and sunflower seeds. Germination significantly increases the levels of phenolic acids and flavonoids, as well as their antioxidant activity. Therefore, germinated edible seeds are a very valuable source ofnatural antioxidants. Lyophilised sprouts could be used as ingredients in functional foods.