Catharine Arnston: Eating algae to age better

Could eating algae be the secret weapon many of us have been searching for in the pursuit of longevity? The microscopic form of life is consumed as part of a balanced diet is in some parts of the world, but it is also being hailed as a superfood that could help us age better. Of course there is nothing new about algae, which are photosynthetic microorganisms that live in water and grow hydroponically, that is, without soil. The common image is of an icky green film on ponds or areas of ...