Is chronotype associated with dietary intake and weight gain during pregnancy? A prospective and longitudinal study

•Evening pregnant women eat breakfast later and have higher energy and carbohydrate intakes at dinner than morning pregnant women.•Evening pregnant women present a worse pattern of gestational weight gain in the third trimester of pregnancy.•Morning pregnant women show a better diet quality, with higher intake of milk and dairy in addition to lower intake of saturated fat.•Considering chrononutrition variables in the prenatal nutritional guidelines is important for the promotion of maternal and fetal health.