| Bibliography | RoB Tier | Study design | Study name | Food | Endpoint assessed | Additional comments |
|---|---|---|---|---|---|---|
| Ayonrinde et al. ( 2017 ) | 3 | PC | Western Australian Pregnancy Cohort (Raine Cohort) | CF | Non‐alcoholic fatty liver disease | |
| Kindgren et al. ( 2017 ) | 2 | NCC | Alla Barn i Sydöstra Sverige (ABIS) | Gluten | Juvenile idiopathic arthritis | |
| Tanaka et al. ( 2013 ) | 3 | PC | Osaka Maternal and Child Health Study (OMCHS) | CF | Early childhood dental caries | |
| Ellis et al. ( 2012 ) | 3 | RETRO: CC | Childhood Arthritis Risk factor Identification Study (CLARITY) | CF | Juvenile arthritis – Timing of introduction of CFs in cases and controls | |
| Fort et al. ( 1990 ) | 3 | RETRO: CC | n/a | CF | Autoimmune thyroid disease – Timing of introduction of CFs in cases and controls | |
| Strisciuglio et al. ( 2017 ) | 3 | RETRO: CC | n/a | Gluten |
Crohn's disease Ulcerative colitis |
CC: case–control study; CF: complementary food; n/a: not applicable; NCC: nested case–control study; PC: prospective cohort study; RETRO: retrospective study; RoB: risk of bias.