Relationship between maternal egg intake and foetal development

INTERVENTION: The participants are allocated to four study arms: Group 1: Normal dietary intake who never consume eggs (non‐random allocation) Group 2: Normal diet who are instructed not to consume eggs (random allocation) Group 3: Normal diet who are instructed to eat at least one egg per day (random allocation). They will be provided with vouchers redeemable at local stores for the purchase of eggs only. Group 4: Control group (non‐random allocation). They will be provided with standard dietary counselling for pregnant women. Total duration of interventions: Three months CONDITION: Maternal nutrition and foetal development ; Nutritional, Metabolic, Endocrine ; Maternal care for other known or suspected fetal problems PRIMARY OUTCOME: 1. Foetal growth, measured at 3 months and 6 months of gestation; 2. Newborn ponderal index, measured at birth; 3. APGAR score, measured at birth SECONDARY OUTCOME: 1. Maternal body composition, measured at 3 months of gestation; 2. Newborn body composition, measured at birth INCLUSION CRITERIA: 1. Women between the ages of 18 and 40 years 2. Those who are in their 4th or 5th month of singleton pregnancy 3. Free from chronic diseases (heart disease, cancer, diabetes, hypertension, and other disorders that may influence metabolism and growth) 4. Reside in Duque de Caxias in Rio de Janeiro