Essential and non-essential/toxic trace elements in whey protein supplements

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Pinto, E (Author) Other; Ferreira, Isabel (Author) FFUP; Agostinho Almeida (Author) FFUP

Journal

Title: Journal of Food Composition and Analysis

Vol. 86

ISSN: 0889-1575

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 5 Citations

Other information

Authenticus ID: P-00R-DSD

DOI: 10.1016/j.jfca.2019.103383

Abstract (EN): Twenty-six (26) trace elements (essential and non-essential/toxic) were determined in 49 whey protein (WP) supplements available for sale in the Portuguese market by inductively coupled plasma - mass spectrometry. The most abundant essential trace element was Fe (13.7 +/- 16.7 mu g/g) and the least abundant was Co (0.040 +/- 0.028 mu g/g). The estimated daily intake was calculated and, considering a daily consumption of 50 g of WP supplement, on average, 100 % of the recommended dietary allowance for Mo and ca. 40 % for Se is met. A safety assessment was also performed based on the Permitted Daily Exposure limits settled by the USP, general chapter < 2232 >. The daily consumption of 50 g of WP supplement does not contribute for more than 12.1 % (Cd) of those limits, as regards As, Cd, Pb and Hg. Thus, WP supplements can be considered safe products, regarding the presence of potentially toxic elements.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10