Table 4.

Most important facilitators and barriers in implementing SMARTsize intervention

Level	Facilitators	Barriers
Characteristics of the user	Belief that dietetic intervention could be prolonged into difficult phase of maintenance because less time is spent in the starting phase	Belief that patients need more individual counselling in the starting phase
	Training in relapse prevention
	Social support from other dietitians
Characteristics of the innovation		Intervention materials not suitable for all types of patients (i.e. with low health literacy levels)
		Technical difficulties with website and homescreener
Organisational context and setting	Support from management and practical support from business where intervention was implemented	No financial reimbursement of dietitians’ hours spent on cooking classes
Innovation strategy	Clear implementation manual	Organisation of cooking classes time‐consuming (i.e. finding suitable location)