This from Gooshing. The well-travelled Sunday lunch…
Chicken from Thailand 10,691 miles by ship
Runner beans from Zambia 4,912 miles by plane
Carrots from Spain 1,000 miles by lorry
Mange Tout from Zimbabwe 5,130 miles by plane
Potatoes from Italy 1,521 miles by lorry
Sprouts from Britain 125 miles by lorry

Total 26,234 miles

If you choose products that are in season and purchase them locally, you could reduce the total journey from 26,234 to just 376 miles!