Table 6.

Illustrative quotes related to using the self-management app: food recording.

Id	Concern	Interviewee	Quote
F1	Search: difficult in the beginning	Dietician, C4	“What I heard was that sometimes food products were difficult to find. The search function was not optimal. Especially in the beginning, it is quite hard and time consuming to know how to fill in everything and how to find the food. Once they were used to it and set their standards it was quite easy to register.”
F2	Technology literacy level	Mother of a 5-year-old child, C4	“It could be more user-friendly because I know if I would give that app to my parents... They are over 60. They would not know what to do... For us, it is OK because we find our way... But for older people, it would be too technical and too hard.”
F3	Food preparation, estimating quantities	Mother of a 15-year-old teen, C1	“The tedious part was the food recording. For example, there was an issue with the oil. When you created a dish and you indicated a certain amount of oil, then you could get a very high dose of enzymes, but if you changed the amount of oil the recommended dose could be reduced a lot. Also, it is difficult to estimate the amount of oil in fried products. Depending on the amount you indicated you could get too high doses.”
F4	Best practices: creating own dishes	Father of a 3-year-old child, C2	“You can create the meal in your app, so you select it the next time. We use that. Quite often. When the same meal comes back after 2 or 3 weeks, that was very pleasant to use.”