Efficacy of Family-based Dietary Counseling During Pregnancy on Gestational Weight Gain in Pregnant Women in a Randomized Controlled Trial

Inclusion Criteria: Adult (+18 years old) Pregnant woman who can be accompanied by a member of the household, adult sharing at least 1 meal per day with her. Affiliated to the social security. French speaking person (read/written and spoken). Single pregnancy between 8 SA and 16 SA. Starting BMI between 18.5 and 35 Exclusion Criteria: * Person under legal protection or guardianship * Women suffering from a disease requiring a dietary follow-up: * Type 1 or type 2 diabetes. * Gestational diabetes diagnosed on the basis of fasting blood sugar. * History of bariatric surgery. * Eating disorders. * Metabolic pathologies leading to special diets (phenylketonuria). * Digestive pathologies (with an indication) with special diets * Women who have lost more than 10% of their weight at the beginning of pregnancy