The August 2016 most expensive places for grocery items such as consumables, cleaning products, dairy, fresh fruits and vegetables, general food products, snacks and soft drinks.
The world cost of living comparison (top 50) rankings for grocery items from most expensive location to least expensive are as follows:

1. Luanda
2. Asmara
3. Zurich
4. Bangui
5. Geneva
6. George Town
7. Hamilton
8. Bridgetown
9. Saint John’s
10. Monrovia
11. Singapore
12. Tokyo
13. Seoul
14. Kinshasa
15. Daegu
16. Incheon
17. Busan
18. Kingstown
19. Oslo
20. Lagos
21. Brazzaville
22. Basseterre
23. Nassau
24. Yokohama
25. Hong Kong
26. Osaka
27. Ouagadougou
28. Kobe
29. Castries
30. Nagoya
31. Saint George’s
32. Noumea
33. Moscow
34. Kyoto
35. Hagatna
36. N’Djamena
37. Dili
38. Honolulu, HI
39. Nuuk
40. Vaduz
41. Freetown
42. Abuja
43. Port Vila
44. Fort-de-France
45. Roseau
46. Honiara
47. Port-au-Prince
48. Shanghai
49. Djibouti
50. Macao
http://www.xpatulator.com/cost-of-living-article/Groceries-Cost-of-Living-Ranking-August-2016_677.cfm