Spermidine content of selected dietary supplements: potential for improvement? | Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007 Skip to main content Skip to main navigation menu Skip to site footer Open Menu Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007 Home Food Science Publisher Functional Food Center Current Archives About About the Journal Aims and Scope Contact Editing Services Editorial Team Express Peer Review Graphical Abstract Journal Insights Privacy Statement Submissions Announcements Search Search Register Login Home / Archives / Vol. 13 No. 5 (2023): May 2023 / Review Articles Spermidine content of selected dietary supplements: potential for improvement? Authors Philipp Steichen Karin Gruber Berit Hippe Alexander Haslberger DOI: https://doi.org/10.31989/ffhd.v13i5.1102 Abstract Dietary spermidine is emerging as a substance with promising health-promoting and healthy ageing-promoting properties. Its autophagy-inducing potential has been especially well-documented. This process is suspected to be at the root of the life-prolonging effects of fasting and in-vivo spermidine supplementation. In humans, high dietary spermidine intake is associated with a lifespan increase of 5.7 years. Numerous studies provide indications of its effects on the cardiovascular, nervous, and immune systems as well as on the formation and development of tumors. Nevertheless, no health claims are currently authorized in the EU for spermidine or spermidine-rich functional foods. When ingested through food or dietary supplements, dosage appears to play an important role in replicating the favorable effects. Currently, there are ongoing proceedings regarding the novelty of a certain manufacturing process of spermidine supplements, but many other plant extracts with high spermidine content from different sources are marketed without the need for novel food authorization.  This article discusses the varying test results obtained for the spermidine concentration of popular spermidine supplements. Soybean extract seems to be slightly superior in terms of spermidine concentration, but one wheat germ-based product stood out in this analysis due to a 10 times higher spermidine concentration than comparable products. Keywords: spermidine, food supplements, novel food, botanicals, functional foods, autophagy, spermidine-rich wheat germ extract  Downloads [Abstract] [Full Article] Published 2023-05-15 Issue Vol. 13 No. 5 (2023): May 2023 Section Review Articles License Authors retain the copyright of their articles and grant the Functional Food Center (FFC) and its journals the right of first publication under the terms of the Creative Commons Attribution 4.0 International License. This license permits unrestricted use, distribution, and reproduction in any medium, including commercial use, provided the original author(s) and source are properly credited. Authors may post and share their published work freely, provided that the original publication in this journal is acknowledged. By submitting to this journal, authors confirm that their manuscripts are original, not under consideration elsewhere, and that they hold the necessary rights to grant this license. The Functional Food Center encourages open scientific exchange and allows derivative and extended works, provided attribution to the original publication is maintained. About the Journal      Editing Services      Graphical Abstract      Journal Insights        Submissions        Editorial Team       Privacy Statement        Contact        Current        Archives   Open Journal Systems Hosting and Support by: OpenJournalSystems.com