IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Intake of food supplements based on algae or cyanobacteria may pose a health risk due to elevated concentrations of arsenic species
Cheyns, K.; Demaegdt, H.; Waegeneers, N.; Ruttens, A. (2021). Intake of food supplements based on algae or cyanobacteria may pose a health risk due to elevated concentrations of arsenic species. Food additives & contaminants. Part A. Chemistry, analysis, control, exposure & risk assessment 38(4): 609-621. https://hdl.handle.net/10.1080/19440049.2021.1877834
In: Food additives & contaminants. Part A. Chemistry, analysis, control, exposure & risk assessment. TAYLOR & FRANCIS LTD. ISSN 1944-0049; e-ISSN 1944-0057, more
Peer reviewed article  

Available in  Authors 

Keyword
    Algae
Author keywords
    Arsenic; speciation; algae; food supplements; inorganic arsenic; arsenosugars; HPLC-ICP-MS; ICP-MS

Authors  Top 

Abstract
    Despite the health benefits of food supplements (FS) based on algae or cyanobacteria, the elevated arsenic (As) concentrations in these FS may raise a health concern. In the present study 33 FS containing algae or cyanobacteria were collected and As (species) were analysed to estimate consumer exposure. Based on hazard and exposure data, potential risks were evaluated using inorganic arsenic (Asi) and the potentially toxic As fraction (Astot minus arsenobetaine (AB)). Astot concentrations were in the range 0.053–57 mg/kg with highest concentrations in FS containing brown algae. Asi concentrations were in the range <0.02–4.7 mg kg−1. A large part of As in FS containing algae or cyanobacteria was identified as potentially toxic AsSugars species. Negligible amounts of AB were detected. According to a tentative risk evaluation, the intake of Asi related to all FS collected was of no health concern for the general population. In 8 out of 33 of the analysed FS, however, the Asi concentration was of concern for population groups with increased cancer risks. If all As species except the non-toxic AB were taken into consideration, only 26 out of 33 of the FS showed ‘no concern’ for the general population, while for the other 7 FS a potential health risk was identified. This study indicates the need to obtain more data on toxicity of AsSugars and to develop limits for As (species) in FS.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors