The DALI Lifestyle Study Context: Lifestyle approaches for preventing gestational diabetes mellitus (GDM) have produced mixed results. Objective: The aim of this study was to compare the effectiveness of three lifestyle interventions (Healthy eating (HE), Physical activity (PA) and both HE and PA (HE+PA)) with usual care (UC) in reducing GDM risk. Design: Multicentre Randomised Controlled Trial 2012-2014: The Dali Lifestyle Study Setting: Antenatal clinics across 11 centres in 9 European countries Patients: Consecutive pregnant women <20 weeks gestation with a BMI≥29 kg/m 2 and without GDM by IADPSG criteria (n=436).Intervention: Women were randomized, stratified by site, to Control, HE, PA or HE+PA. Women received 5 face-to-face and up to 4 telephone coaching sessions, based on the principles of motivational interviewing. Gestational weight gain (GWG) <5kg was targeted. Coaches received standardized training and an intervention toolkit tailored to their culture/language. Main outcome measures: GWG at 35-37 weeks, fasting glucose and insulin sensitivity (HOMA-IR) at 24-28 weeks. Results: We randomized 108 women to HE&PA, 113 to HE, 110 to PA and 105 to UC. In the HE+PA group, but not HE or PA alone, women achieved substantially less GWG than controls by 35-37 weeks . Despite this reduction there were no improvements in fasting or post-load glucose or,insulin concentrations or HOMA-IR. Birthweight, large and small for gestational age rates were similar. Copyright 2016 DOI: 10.1210/jc.2016 Conclusions: The combined HE+PA intervention was able to limit GWG but did not reduce fasting glycaemia. Lifestyle change alone is unlikely to prevent GDM among women with a BMI≥29 kg/m 2 .PRECIS: We studied pregnant women in a large European multi-centre RCT of physical activity and/or healthy eating and found no effect on GDM risk in spite of significant gestational weight gain limitation INTRODUCTIONGestational diabetes mellitus (GDM), high pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) are independently associated with an increased risk of adverse perinatal outcomes, including macrosomia, operative delivery and shoulder dystocia (1). In GDM, such complications have a continuous relationship with maternal glucose concentrations during the oral glucose tolerance test (OGTT) (2). With the increasing prevalence of obesity in pregnancy and GDM (3), it has become increasingly important to develop evidence based clinical interventions that prevent the development of GDM and minimise excess GWG. The development of type 2 diabetes through intensive lifestyle interventions can be reduced by 58% over 4 years in non-pregnant women who have previously had GDM (4). However, whether GDM can be prevented through antenatal lifestyle interventions, even with limitation in excess GWG, is disputed (5). RCTs have provided variable evidence that lifestyle interventions 'work' (6); likely because of different intervention protocols and study populations. Furthermore, at the moment, no studies are available that assessed, ...

SummaryThe objective of the study is to provide evidence‐based guidance on nutritional management and optimal care for pregnancy after bariatric surgery. A consensus meeting of international and multidisciplinary experts was held to identify relevant research questions in relation to pregnancy after bariatric surgery. A systematic search of available literature was performed, and the ADAPTE protocol for guideline development followed. All available evidence was graded and further discussed during group meetings to formulate recommendations. Where evidence of sufficient quality was lacking, the group made consensus recommendations based on expert clinical experience. The main outcome measures are timing of pregnancy, contraceptive choice, nutritional advice and supplementation, clinical follow‐up of pregnancy, and breastfeeding. We provide recommendations for periconception, antenatal, and postnatal care for women following surgery. These recommendations are summarized in a table and print‐friendly format. Women of reproductive age with a history of bariatric surgery should receive specialized care regarding their reproductive health. Many recommendations are not supported by high‐quality evidence and warrant further research. These areas are highlighted in the paper.

This systematic review investigates the relationship between maternal obesity and breastfeeding intention, initiation, intensity, duration and milk supply. A comprehensive search was performed through three major databases, including Medline, Cochrane Library and Cumulative Index For Nursing and Allied Health Literature, and by screening reference lists of the relevant publications. Selection criteria were: report of original research, studies on low-risk obese mothers and the comparison with normal weight mothers which met at least two of the following primary outcomes: breastfeeding intention; initiation; intensity; duration and/or milk supply. Furthermore, the included reports had to contain a clear definition of pre-pregnant obesity, use compensation mechanisms for potential confounding factors, have a prospective cohort design and had to have been published between 1997 and 2011 and in English, French or Dutch. Effects of obesity on breastfeeding intention, initiation, intensity, duration and milk supply were analysed, tabulated and summarised in this review. Studies have found that obese women are less likely to intend to breastfeed and that maternal obesity seems to be associated with a decreased initiation of breastfeeding, a shortened duration of breastfeeding, a less adequate milk supply and delayed onset of lactogenesis II, compared with their normal weight counterparts. This systematic review indicates therefore that maternal obesity is an adverse determinant for breastfeeding success.