A prospective 12‐month structured weight loss intervention in women with severe obesity and polycystic ovary syndrome: Impact of weight loss on eating behaviors

Author:

Kataoka Josefin12ORCID,Stener‐Victorin Elisabet3,Schmidt Johanna45,Larsson Ingrid67

Affiliation:

1. Institute of Neuroscience and Physiology, Department of Physiology, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden

2. Department of Obstetrics and Gynaecology Sahlgrenska University Hospital Gothenburg Sweden

3. Department of Physiology and Pharmacology Karolinska Institute Stockholm Sweden

4. Institute of Clinical Sciences, Sahlgrenska academy University of Gothenburg Gothenburg Sweden

5. Göteborgs IVF‐klinik Gothenburg Sweden

6. Department of Medicine Sahlgrenska University Hospital Gothenburg Sweden

7. Institute of Medicine, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden

Abstract

AbstractIntroductionThe knowledge regarding eating behavior and disorders in women with polycystic ovary syndrome (PCOS) and severe obesity is limited. This study aimed to assess eating behavior and lifestyle factors in women with severe obesity (BMI ≥35 kg/m2), with and without PCOS, and the effect of weight loss on these behaviors.Material and MethodsA prospective clinical trial with participants screened for PCOS using National Institutes of Health criteria. Participants completed the Food Frequency Questionnaire, International Physical Activity Questionnaire, Three‐Factor Eating Questionnaire, and Questionnaire of Eating and Weight Patterns‐revised, and were evaluated regarding binge eating disorder using DSM‐5 criteria before and after a 12‐month weight loss intervention. Clinicaltrials.gov: NCT01319162.Results246 women were included (PCOS n = 63, age 33.0 ± 8.4, BMI 39.9 ± 4.7; non‐PCOS n = 183, age 37.7 ± 8.7, BMI 39.6 ± 4.3). Women with PCOS showed elevated baseline scores in cognitive restraint eating (50.0 [33.3–63.2]) compared to women without PCOS (38.9 [27.8–55.6]; p = 0.012). No differences were observed between groups in emotional and uncontrolled eating. In both groups, cognitive restraint eating was negatively correlated with energy intake (PCOS: r = −0.315, p < 0.05; non‐PCOS: r = −0.214, p < 0.001), while uncontrolled eating displayed a positive correlation with energy intake (PCOS: r = 0.263, p = 0.05; non‐PCOS: r = 0.402, p < 0.001). A positive correlation was found between emotional eating and energy intake only in women without PCOS (r = 0.400, p < 0.001). Baseline self‐reported energy intake and physical activity did not differ between groups. At 12‐month follow‐up, women with PCOS reported reduced fat intake. Women without PCOS reported reduced energy intake, carbohydrates and sugar, increased protein, reduced scores for emotional and uncontrolled eating, and heightened scores for cognitive restraint eating. Comparing changes from baseline to follow‐up, differences were found between groups in cognitive restraint, intake of fat, carbohydrates, and sugar. The mean weight loss was 12–14 kg, with no between‐group difference (p = 0.616).ConclusionsWomen with severe obesity and PCOS showed elevated cognitive restraint eating behaviors compared to women without PCOS. Although significant weight loss was seen in both groups, alterations in eating behavior more favorable for weight loss were only seen in women without PCOS.

Funder

Novo Nordisk Fonden

Diabetesfonden

Göteborgs Läkaresällskap

Vetenskapsrådet

Publisher

Wiley

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