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. 2022 Nov 17;14(22):4862. doi: 10.3390/nu14224862

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Intake of dietary supplements. (A) Proportion of participants taking choline-containing dietary supplements in all (13/267), omnivorous (10/213), and vegetarian/vegan (3/54) participants (B) Percentage of choline coming from food sources and dietary supplements in participants supplementing choline (all n = 13; omnivore n = 10, vegetarian/vegan n = 3) (C) Intake of dietary supplements during pregnancy. Percentage of participants taking given supplement alone or as a part of a prenatal vitamin complex supplement.