Prenatal Supplement Linked to Higher IQ, Improved Social Skills in Children, Study Finds

A nutritional supplement commonly found in foods such as chicken, eggs, beef, and fish may significantly enhance fetal brain development, leading to improved social behavior, cognitive performance, and higher IQ scores in children, according to new research. The supplement, choline, plays a vital role in memory, mood, inflammation, and cell health.

A clinical trial conducted at the University of Colorado observed that children whose mothers received phosphatidylcholine supplements, a form of choline, exhibited fewer challenges with language development and social skills. These children also showed reduced social withdrawal behaviors, some of which are associated with Autism Spectrum Disorder.

At four years old, children whose mothers took the choline-based supplement scored approximately 8 points higher on an IQ-style test compared to those who received a placebo. A portion of these children also scored within a range indicative of potential placement in gifted programs.

This randomized clinical trial, the largest of its kind for prenatal choline supplementation, involved over 200 pregnant women. Participants received either 9,000 milligrams of phosphatidylcholine or a placebo daily from the 16th week of pregnancy until delivery. Neither the participants nor the researchers were aware of who received the active supplement or the placebo until the study's conclusion.

The children's behavior and cognitive performance were assessed starting at 18 months of age, with cognitive tests administered at ages 3 and 4. By age four, only 4% of children in the supplement group displayed multiple or persistent social withdrawal problems, in contrast to 24% in the placebo group. Social withdrawal behaviors encompassed limited interest in others, avoidance of social activities, and reduced eye contact.

The study also indicated fewer children in the supplement group experienced behavioral profiles and language difficulties often linked to autism. However, no significant improvements were noted in attention problems. Approximately one-third of participants withdrew from the study before final assessments could be completed.

Despite these dropouts, the study authors concluded that their findings demonstrate "safe, effective support of fetal brain development" through choline supplementation. The results could influence how healthcare providers discuss prenatal supplements with expectant mothers.

"This study provides additional evidence that choline supplements during pregnancy can have lasting effects on children’s brain development," stated senior author Robert Freedman. Choline contributes to brain development by activating a receptor within developing nerve cells that facilitates their ability to receive signals from other nerve cells prior to birth.

Freedman noted that many mothers do not consume sufficient choline in their diets to fully support their baby's neurological development. The study authors suggested that a dosage of 7,200 mg of phosphatidylcholine or 900 mg of choline itself might be more appropriate than the higher dose used in the trial.

While choline is naturally present in foods like chicken, beef, and eggs, obtaining adequate amounts through diet alone can be challenging. Prenatal vitamins can help fill these nutritional gaps and offer additional developmental benefits.