The purpose of this clinical study is to find out how the novel insulin NNC0363-1063 and a non-glucose carbohydrate used in food and beverage might interact in participants with type 1 diabetes and if co-administration of these substances is safe and tolerable. All participants will get a fixed dose of NNC0363-1063 and an oral administration of different amounts of the non-glucose carbohydrate in a random order during 4 interaction tests. The participants will be in this clinical study for about 5 to 12 weeks.