Inclusion Criteria:  Women aged 25 to 38 years with planned IVF / ICSI 1 ng/ml ≤ Anti-Mullerian Hormone (AMH) ≤ 4 ng/ml Unfulfilled desire to have children >1 year 25 kg/m² ≤ BMI ≤ 35 kg/m² declaration of consent  Exclusion Criteria:  Language barriers Previously known serious mental illness or cognitive impairment Patients with anatomical/organic damage and proven uterine abnormalities Eating disorders in the medical history Serious previous internal diseases Lack of internet access No consent to randomisation Participation in other studies