Evidence supporting the use of: Docosahexaenoic Acid
For the health condition: Pregnancy (herbs and supplements for)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Docosahexaenoic Acid (DHA) is an omega-3 fatty acid found primarily in fish oil and algae oil. Its use during pregnancy is supported by scientific evidence, particularly for fetal neurodevelopment. DHA is a crucial structural component of the brain and retina, and fetal accumulation is highest during the last trimester of pregnancy. Randomized controlled trials and observational studies have shown that maternal DHA supplementation is associated with improved visual acuity, cognitive development, and even potential reduction in preterm birth risk. Several health authorities, such as the American Pregnancy Association and the European Food Safety Authority, recommend that pregnant women consume adequate DHA, either through diet or supplementation (typically 200–300 mg/day).

Meta-analyses have demonstrated that higher maternal DHA intake can result in modest but significant improvements in offspring neurodevelopmental outcomes. Additionally, there is evidence suggesting a role in reducing the risk of preterm birth, though results are mixed and ongoing research aims to clarify this benefit. DHA is not typically used to treat pregnancy itself, but to support optimal fetal development during pregnancy. Overall, the use of DHA during pregnancy is based on scientific validation rather than historical or traditional use.

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