The proportion of UK consumers concerned about food miles has nearly doubled in the past five years, according to the latest research from IGD.

The research, outlined in Shopper Trends - Five Years On, indicated 16% of people were concerned about the distance food travels - up from 9% in 2003, while 38% were concerned about animal welfare compared with 33% in 2003.

Only 17% of consumers were concerned about the effect of pesticides on health, compared with 21% in 2003, and 11% were worried about the impact of GM food on health down from 15% five years ago.

The number of shoppers buying Fairtrade products has grown dramatically. Nearly a quarter (23%) of shoppers said they had bought Fairtrade products in the past month, compared with 11% five years ago. The proportion of people buying products free from artificial colours and flavours has also risen sharply over the same period, from 18% to 25%.