纤维补充剂：每天服用是否安全？

我发现难以摄入足够的水果和蔬菜。每天服用纤维补充剂是否有害？

每天服用纤维补充剂应该很安全。常用的纤维补充剂包括菊粉、洋车前子（Metamucil、Konsyl 等）以及甲基纤维素（Citrucel）。

纤维对人体有益，有助于保持肠道健康，防止便秘。纤维可以帮助降低胆固醇，让您很容易有饱腹感，有助于控制暴饮暴食。

最好是从食物中摄取纤维。纤维补充剂不能像富含纤维的食物一样提供维生素、矿物质和其他营养物质。但可作为日常摄入量的一部分。

纤维补充剂可能导致腹胀和胀气，至少在开始的时候是这样。有肠梗阻或克罗恩病病史等胃部问题的人士在服用纤维补充剂前应咨询其医疗护理团队成员。

此外，请务必询问纤维补充剂是否会影响您服用的任何药物。例如，纤维补充剂是否会降低血糖水平。糖尿病患者可能需要服用不同剂量的胰岛素或其他药物。

当开始补充纤维时，请从少量开始，以防止胀气。服用剂量请勿超过补充剂标签上规定的剂量。此外，每天一定要饮用大量液体。

With

Wald A. Management of chronic constipation in adults. https://www.uptodate.com/contents/search. Accessed April 13, 2023.
Veronese N, et al. Dietary fiber and health outcomes: An umbrella review of systematic reviews and meta-analyses. American Journal of Clinical Nutrition. 2018; doi:10.1093/ajcn/nqx082.
Muir J. An overview of fiber and fiber supplements for irritable bowel syndrome. Gastroenterology & Hepatology. 2019. https://www.gastroenterologyandhepatology.net/archives/july-2019/an-overview-of-fiber-and-fiber-supplements-for-irritable-bowel-syndrome/. Accessed April 13, 2023.
Lambeau KV, et al. Fiber supplements and clinically proven health benefits: How to recognize and recommend an effective fiber therapy. Journal of the American Association of Nurse Practitioners. 2017; doi:10.1002/2327-6924.12447.
McRorie JW Jr., et al. Psyllium: The gel-forming nonfermented isolated fiber that delivers multiple fiber-related health benefits. Nutrition Today. 2021; doi:10.1097/NT.0000000000000489.
Blond psyllium. Natural Medicines. https://naturalmedicines.therapeuticresearch.com. Accessed April 13, 2023.
Lambeau KV, et al. Fiber supplements and clinically proven health benefits: How to recognize and recommend an effective fiber therapy. Journal of the American Association of Nurse Practitioners. 2017; doi:10.1002/2327-6924.12447.

Sept. 09, 2023