High risk women for growth restricted fetuses will randomized in the second trimester into different strategies applied to the mothers: a stress reduction program based on mindfulness techniques or a nutrition interventional program based on Mediterranean diet.

Randomized controlled trial among women at higher risk to have a growth restricted fetus (30%) according to Royal College of Obstetrics and Gynecology (RCOG) Guidelines. These high-risk women will be randomized in order to evaluate an improvement in several outcomes thanks to different strategies applied to the mothers: a stress reduction program based on mindfulness techniques or a nutrition interventional program based on Mediterranean diet.

Main hypothesis: specific interventions improving maternal lifestyle and well being have a positive impact on pregnancy outcomes as well as on fetal growth and development.

Secondary hypothesis is that interventions to improve maternal lifestyle well being have a positive impact on offspring's outcome later in life, in terms of neurodevelopment and cardiovascular profile, mediated by epigenetic changes in offspring.

Inclusion Criteria:

• Maternal age at recruitment ≥18 years
• Speak Spanish fluently
• Viable singleton non-malformed fetus
• High-risk pregnancy to develop FGR.
• 19-23 weeks of gestation

Exclusion Criteria:

• Fetal anomalies including chromosomal abnormalities or structural malformations detected by ultrasound.
• Mental retardation or other mental or psychiatric disorders that impose doubts regarding the true patient´s willingness to participate in the study.
• No possibility to come to additional visits.

Participants will be recruited in our unit and data will be available only for researchers involved in the study.

Care provider will not know the arm of randomization