Background and Objective Maternal food intake during pregnancy can substantially interfere in the baby’s anthropometric measurements at birth. Our objective was to perform a systematic review that investigate the influence of nutrient intake via food during pregnancy on the baby’s anthropometric measurements at birth. Methods A search was performed without time limits on CINAHL, Embase, PubMed, Scopus and Web of Science databases and manual on studies references. All nutrients and baby’s anthropometric measurements at birth were included as descriptors. Results Thirty articles were included, the majority of prospective cohort studies, with 15.39 (2.36) quality points (maximum value: 22). Thirty-six results of associations were found, of which 17 studies had direct associations between nutrient intake and birth outcomes. Inverse associations were identified in 8 studies and 11 articles showed no significant associations in all analyses. Maternal food intake of vitamin C, calcium and magnesium during pregnancy seems to have a positive influence on the baby's birth weight, while carbohydrates intake have an inverse association with the same outcome. Conclusion It is suggested that vitamin C, calcium, magnesium and carbohydrates influence on baby’s birth weight. So, these specific nutrients need more attention to the consumption, in addition to carried out new studies, with robust methodologies for measuring maternal food consumption and considering the several factors that can interfere in this assessment. Registration This review has been registered to the PROSPERO (International prospective register of systematic reviews) (ID: CRD42020167889).

中文翻译：

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怀孕期间营养素摄入量对婴儿出生体重的影响：系统评价

背景和目的 怀孕期间母亲的食物摄入量会严重干扰婴儿出生时的人体测量结果。我们的目标是进行系统评价，调查怀孕期间通过食物摄入的营养对婴儿出生时人体测量的影响。方法 对 CINAHL、Embase、PubMed、Scopus 和 Web of Science 数据库以及研究参考手册进行无时间限制的检索。所有营养素和婴儿出生时的人体测量数据都作为描述符包含在内。结果 纳入 30 篇文章，大部分为前瞻性队列研究，质量分为 15.39 (2.36)（最大值：22）。共发现 36 项关联结果，其中 17 项研究在营养摄入与出生结果之间存在直接关联。8 项研究发现了反向关联，11 篇文章在所有分析中均未显示显着关联。母亲在怀孕期间摄入的维生素 C、钙和镁似乎对婴儿的出生体重有积极影响，而碳水化合物的摄入则与相同的结果呈负相关。结论维生素C、钙、镁、碳水化合物对婴儿出生体重有影响。因此，除了进行新的研究之外，还需要更多地关注这些特定营养素的消耗，并采用可靠的方法来测量母亲的食物消耗并考虑可能干扰这一评估的几个因素。注册 本综述已在 PROSPERO（国际前瞻性系统评价注册库）注册（ID：CRD42020167889）。