Table 1.

Summary of skill-building intervention newsletter objectives, targeted mediators and content

Newsletter Week (no).	Objective/target	Primary communication objective	Secondary objective (barriers and promoters addressed)
1(1)	Knowledge	Why you should eat more fruit and vegetables and drink water	- Health benefits - How much to eat/drink - Set goals to increase amount of vegetables
2(2)	Self-efficacy for healthy eating, perceived affordability of fruit & vegetables	Planning for healthy eating	- Planning a menu (inventory of items on hand) and writing a shopping list - Planning to drink more water
3(3)	Self-efficacy for healthy eating	Shop smart	- Saving money at the supermarket (using canned or frozen when fruit & vegetables not in season) - Understanding labels - Setting goals (related to buying more fruit & veg while shopping)
4(4)	Perceived affordability of fruit & vegetables, self-efficacy for healthy eating	Confidence in the kitchen	- Creating quick simple meals from items on hand (include cooking methods, adding fruit & vegetables to simple meals) - Preventing wastage - Fruit juice and sugar
5(5)	Perceived barriers	Saving time and money	- Meal ideas for saving time - Food safety (to avoid waste) - Soft drinks and sugar
7(6)	Perceived barriers	Trying different fruit & vegetables	- Tasting new/different fruit & veg - Healthy eating outside the home - Trying sweet-drink alternatives
9(7)	Self-efficacy for healthy eating, perceived barriers	Confidence in eating healthy at all times	- Modifying recipes - Eating fruit & vegetables in social situations - Energy deficit when reducing consumption of sweetened drinks
11(8)	Self-efficacy for healthy eating, perceived barriers, awareness	Revision	- Resources to use for continuing to eat healthy - Revision of key messages