Which supplements to take - and why

Lutein

What is it? An antioxidant that's found in dark green leafy vegetables and egg yolk, although you'd need to eat quite a lot of these to reach the 6-10mg daily intake recommended in the US. (There's no recomended daily intake, or RDA, in the UK at the moment.)

Who needs it? Lutein reduces the risk of Age-related Macular Degeneration (AMD), where the centre of the retina (the macula), deterioriates due to a lifetime of wear and tear. AMD is the leading cause of blindness in people over 65.

Where can I buy it? Boots and other chemists have a wide range, as do health-food shops such as Holland & Barrett