Effects of HMOs on the Faecal Microbiota and on Host Metabolism in Obese Children

Inclusion Criteria:

1. Informed, written consent by the child's representative(s) and informed verbal assent by the child
2. Age ≥5 and <11 years at visit 0
3. BMI SDS of ≥ 2.3
4. Enrolment in the childhood obesity treatment program at the Children's Obesity Clinic
5. Ability and willingness to understand and comply with the study procedures
6. The child's representative(s) need(s) to read, speak and understand Danish

Exclusion Criteria:

1. Participation in another clinical intervention study one month prior to the screening visit and throughout the study.
2. Any gastrointestinal disease(s) that may cause symptoms or may interfere with the trial outcome, as judged by the investigator.
3. Other severe disease(s) such as malignancy, kidney disease or neurological disease, as judged by the investigator.
4. Psychiatric disease, as judged by the investigator.
5. Use of probiotic supplements (yoghurt allowed) 3 months prior to screening and throughout the study.
6. Consumption of antibiotic drugs 3 months prior to screening and throughout the study.
7. Consumption on a regular basis of medication that might interfere with symptom evaluation (as judged by the investigator) 2 weeks prior to screening and throughout the study.
8. Lack of suitability for participation in the study for any reason as judged by the investigator.