只靠纯素食可以满足孕期全部营养需求？丨中新真探|国产在线视频一区二区三区
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中新网7月23日电 孕妇在孕期对蛋白质、铁、维生素B12、DHA等关键营养素的需求显著增加，而素食中部分营养素存在天然缺陷。例如，维生素B12几乎仅存在于动物性食物中，长期缺乏可能影响胎儿神经系统发育。尽管理论上纯素食者可通过强化食品或补充剂满足部分需求，但这需要专业医生做个体化评估后，严格规划并定期监测营养指标。(来源：科学辟谣 中国新闻网微博)
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