Rachael Ray Show: "It may seem odd to start this list of superfoods with one you've likely never even heard of. But studies have shown that this little berry is one of the most nutritious and powerful foods in the world! Acai (ah-sigh-ee) is the high-energy berry of a special Amazon palm tree. Harvested in the rainforests of Brazil, acai tastes like a vibrant blend of berries and chocolate. Hidden within its royal purple pigment is the magic that makes it nature's perfect energy fruit. Acai is packed full of anti-oxidants, amino acids and essential fatty acids."