Dietary management of obesity and diabetes in pregnancy: Challenging the current guidelines.

The prevalence of type 2 diabetes (T2D) and gestational diabetes (GD) in pregnancy is increasing and is often linked to obesity. Additionally, more obese women are attending antenatal clinic. Current guidance states that women with a BMI >30 kg/m 2 should limit weight gain in pregnancy to 5-9 kg, but there are no recommendations for weight maintenance or weight loss. It is known that poor diets, low in energy, may result in poor pregnancy outcome. However, overweight women with T2D or GD often indirectly reduce their calorie intake by following a healthier diet in pregnancy. A low sugar diet alongside a healthy nutrient intake may be a safe way to prevent weight gain or encourage sensible weight loss in pregnancy, which may reduce complications and promote significant weight loss in the long term.