An article at ScienceDaily discusses a comprehensive analysis of almost 100 studies that highlights the importance of dietitian involvement in managing weight gain during pregnancy.

The research team, led by maternal health expert Professor Shakila Thangaratinam from the University of Birmingham, analyzed data from nearly 35,000 participants across 99 studies published over the past 30 years. They found that interventions led by dietitians and other health professionals were most beneficial in controlling weight gain during pregnancy, known as gestational weight gain (GWG).

The optimal approach was identified as having between 6 to 20 individual sessions with a dietitian. These sessions should address practical considerations during pregnancy, such as nausea, which might affect food and vegetable intake, as well as deal with cravings and fatigue.

However, the research indicated that the benefits of exercise as part of a weight management plan during pregnancy are less clear. It seems that if exercise is included, it should be sustained over a period of more than 20 weeks to be effective.

The team emphasized that gaining weight during pregnancy is normal and healthy, but the notion that expectant mothers are “eating for two” can lead to excessive weight gain. This could increase the risk of complications, including gestational diabetes. Dietitian-led interventions were found to be the most effective in supporting a healthy weight gain. However, other approaches can also work, as long as they start early in the pregnancy.

In a related analysis of a 2022 systematic review, senior research fellow Cheryce L. Harrison and colleagues from the Monash Centre for Health Research and Implementation discussed the lifestyle interventions associated with optimizing gestational weight gain. They suggested that this new meta-analysis provides practical information that can be used to implement trials in antenatal care settings.

In simpler terms, this research highlights the importance of professional dietary advice to manage weight gain during pregnancy. It suggests that pregnant women might benefit from regular meetings with a dietitian and that any exercise plans need to be long-term. The study also challenges the idea of “eating for two,” suggesting this could lead to unnecessary health risks.