Table 2.
Studies reporting on the impact of dairy foods on inflammatory bowel diseases (IBD). DF = dairy food, Inc = incidence
| Author | Type of Study | Crohn’s Disease (N) | Ulcerative Colitis (N) | IBD (N) | Healthy Control (N) | Outcome |
|---|---|---|---|---|---|---|
| Kitahora [50] | Epidemiology | - | 10819 | - | - | Positive correlate. with UC inc |
| Shoda [51] | Epidemiology | 292 | - | - | - | Inc high correlate with DF in univariate analysis |
| Magee [52] | Prospective Cross-section | - | 81 | - | - | 1250 ml/week protective |
| Octoratou [53] | Prospective Cohort | 28 new 30chronic | - | - | 38 | Milk and yogurt protective |
| Abubakar [54] | Case-control | 218 | - | - | 812 | Drinking pasteurized milk protects |
| Opstelten [55] | Cohort | 110 | 244 | - | 401,326 | DF protect CD 0.3 CI (0.13–0.65) UC diagnose >3 years Significant trend 0.04 |
| Spehlmann [59] | Twin Study | - | - | 512 Twins 1 with disease | 207 and (392 non twin IBD) | DFs no effect |
| Jantchou [57] | Prospective Cohort | 33 | 43 | - | 67504 | DF no effect. Animal protein + correlate |
| Reif [58] | Case-control | 33 | 54 | - | 144 | Pre Disease no effect of lactose |
| Jowetta [56] | Prospective Cohort | - | 183 (52 % relapse) | - | - | No effect 1.17 CI 0.53–2.5 Medium intake no effect with high intake |
| Joachim [60] | Prospective Cross-section | 33 | 27 | - | - | DFs prominent in relapse |
| Jowett [61] | Prospective Cohort | - | 183 (52 % relapse) | - | - | 68 % diet thought important, most restricted DFs |
| Vernia [63] | Case–control | 91 | 96 | - | 420 and (276 other diseases) | Females with CD and UC had significantly lower Ca intake than recommended |
| Brazil Lopes [62] | Cross Section | 21 | 44 | - | - | 64.7 % restricted DFs |
aJowett et al. published 2 papers on the same population. One showing no impact of Dfs on UC and the second evaluated patients’ beliefs on effects of diet on UC