The 28-year-old mother, who also has a 4-year-old son, could not understand why the school had chosen to take its students to a fast-food outlet which is not even located in the Hobsonville area.
"We've got a lot of fresh fruit and vegetables in this area ... and we've got so many places around here that use this local food."
Mrs Osbourne said she was allowing Maddy to go because she did not want her to feel left out.
Hobsonville Primary School principal Margaret Doherty said she did not see any problem with the upcoming field trip, and was adamant the 6- and 7-year-old pupils understood the McDonald's visit was about "sustainability" only.
"They're looking at food miles, and that is, if they [McDonald's] use local produce," she said.
"It's nothing to do with health, it's nothing to do with making choices around food."
Mrs Doherty said the trip was part of a study the children were undertaking on local produce and sustainable food. "They will also be going to the farmers' market."
She said the New Lynn McDonald's was chosen because "it was quite open to the children.
"It was a choice that was made by the group of teachers."
New Lynn McDonald's said it would be giving the students a presentation on healthy food as part of their visit.
Franchise owner Dinesh Mani said the children would be given a presentation about healthy living.
"We do a small presentation in the day to show them the food comes from local farmers ... then we take them around the restaurant."
"We talk about healthy lifestyles and choices for the kids ...
"It's about food in general and what healthy options are at McDonald's," she said.
