Table 1.

Study sampling frame

Group	Western	Southern	Northern	Eastern	East Malaysia	Sample size	Data collection method
Government, policy and NGO	10	–	–	–	–	10	IDI
Caterers	10	10	10	10	10	50	IDI
Food industry	5	5	5	5	5	25	IDI
Street vendors	5	5	5	5	5	25	FGD
Consumers	35	35	35	35	35	175	FGD
Total	65	55	55	55	55	285

FGD, focus group discussion; IDI, in-depth interview; NGO, non-governmental organisation.