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Choline Supplementation During Pregnancy Improves Baby's IQ

Choline Supplementation During Pregnancy Improves Baby’s IQ

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  • Consumption of choline-rich foods during the last trimester of pregnancy could boost IQ of babies
  • Offspring of pregnant women who consumed 930 mg of choline per day had better cognitive ability
  • Foods that are rich in choline include egg yolk, nuts, poultry and cruciferous vegetables

Pregnant women should consume foods that are rich in choline as it helps improve cognitive function in babies, according to a study conducted by a research team at the Cornell University.

Choline is an important nutrient that plays a key role in reducing inflammation in asthma, but, the current study focused on the role of choline in prenatal brain development.


The findings of the study published in the Journal of the Federation of American Societies for Experimental Biology showed that babies of pregnant women who consumed twice the currently recommended amount of choline during the last trimester showed better cognitive outcomes.

The demand for choline is high during pregnancy, yet most expectant mothers consume less than the recommended 450 mg per day.

"In animal models using rodents, there's widespread agreement that supplementing the maternal diet with additional amounts of this single nutrient has lifelong benefits on offspring cognitive function. Our study provides some evidence that a similar result is found in humans," said Marie Caudill, professor of nutritional sciences and the study's first author.

Choline during Pregnancy Boosts Babies IQ

For the study, 26 pregnant women were randomly divided into two groups and all the women consumed the same diet. The intake of choline and other nutrients were monitored as choline's function may overlap with other nutrients like vitamin B12, B6 and folic acid.

The research team had conducted two studies earlier on cognitive effects of maternal choline supplementation but had mixed results, maybe due to study designs that were not tightly controlled.

"By ensuring that all the nutrients were provided in equal amounts, we could be confident that the differences in the infants resulted from their choline intake. In this study, half the women received 480 mg/day of choline, slightly more than the adequate intake level, and the other half received 930 mg/day," added Caudill.

Richard Canfield, a developmental psychologist in the Division of Nutritional Sciences and the senior author of the study and Laura Muscalu, co-author of the study, tested infant information processing speed and visuospatial memory at 4,7,10 and 13 months of age.

The research team monitored the time taken by each infant to look toward an image on the periphery of a computer screen and the time taken to produce a motor response. The test has been shown to correlate with IQ in childhood. Studies have shown that infants who demonstrate fast processing speed when young and continue to be fast as they age.

The offspring in both groups showed cognitive benefits, but the infant's information processing speed was faster for a group of pregnant women who consumed 930 mg of choline per day when compared to the control group that consumed 480 mg/day over the same period.

The findings of the study suggest that current recommendations for daily choline intake (450mg) may not be sufficient to produce optimal cognitive abilities in offspring. The current recommended intake of choline is based on the amounts required to prevent liver dysfunction and on studies carried out in men.

Most of the foods rich in choline are not consumed these days. For example, eggs are high in cholesterol and health professionals including those in the government have raised caution about pregnant women consuming undercooked eggs, which may stop pregnant women from eating eggs altogether even though such risks are low for cooked eggs. Red meats are also avoided for their high saturated fat content, said Canfield.

Sources of Choline
Choline is a B vitamin which is a vital nutrient during pregnancy. Choline deficiency during pregnancy is linked to neural tube defects in offspring. Thus, pregnant women are advised to consume foods rich in choline or to take dietary supplements with choline. Some of the food sources of choline include egg yolks, lean red meat, fish, poultry, nuts, legumes and cruciferous vegetables. One large hard-boiled egg provides 147 mg of choline. About 80 grams of liver provides 356 mg of choline. Choline is also available in dietary supplements in combination with other B-complex vitamins. Some of the dietary supplement forms of choline include choline bitartrate, phosphatidylcholine, and lecithin.

Reference :
  1. Marie A. Caudill, Barbara J. Strupp, Laura Muscalu, Julie E. H. Nevins, Richard L. Canfield. Maternal choline supplementation during the third trimester of pregnancy improves infant information processing speed: a randomized, double-blind, controlled feeding study. The FASEB Journal (2017) DOI: 10.1096/fj.201700692RR

Source: Eurekalert

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