Diet and Physical Activity Counseling and n3-long Chain (PUFA) Supplementation in Obese Pregnant Women

Obese pregnant women from PHCC randomized to this group will receive Home-based Diet \& Physical activity (PA) counseling. Home-based intervention will consider 2 home visits of one hour of duration. During this session dietary educational and behavioral will be discussed with the participants and their families tailoring the contents based on the specific contexts.

Obese pregnant women from PHCC randomized to this group will receive n3LC-PUFAs oral supplementation based on Schizochytrium oil (S-oil) containing 800 mg docosahexaenoic (DHA) acid/day, which will be administered as capsular preparations containing 200 mg DHA/capsule (4 capsules/day).

Obese pregnant women from PHCC randomized to this group will receive will receive routine diet \& PA counseling (i.e. they will receive the standard education sessions included in the prenatal controls at PHCC but no home-based counseling sessions).

Obese pregnant women from PHCC randomized to this group will receive capsular preparations containing 50 mg DHA/capsule (4 capsules/day), given that evidence suggests that it would be unethical not to provide DHA during pregnancy. Placebo will be delivered in the same way that the n3LC-PUFA supplementation.