Which supplements to take - and why

Fish oil

What is it? It's an oil extracted from fish! It contains omega 3, 6 and 9. Omega 3 and 6 are essential fatty acids, a polyunsaturated fat, and our bodies can't make them.

Who needs it? Fish oil has anti-inflammatory properties so could be helpful for conditions caused by inflammation such as arthritis. Omega 3 also has heart health benefits. New evidence also shows that omega 3 preserves mental function as we age.

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