Germany: New analysis rises concerns over contaminants in flax seeds

A recent analysis conducted by the German consumer magazine ÖkoTest has raised significant concerns regarding the safety and quality of flax seeds, commonly hailed for their nutritional benefits. The study examined 19 brands of ground flax seeds sourced from organic farming and available in supermarkets, discount stores, and pharmacies. Unfortunately, the results revealed that only one product received a "very good" rating, while 10 others were deemed unsatisfactory due to high levels of contaminants, rancidity, or insufficient labeling.    

Among the primary issues highlighted was the presence of hydrocyanic acid, a toxic substance produced by cyanogenic glycosides found naturally in flax seeds. Although all samples contained hydrocyanic acid, the amounts varied significantly. The EU has set safety limits for this compound, with a maximum of 150 mg/kg for raw consumption and 250 mg/kg for cooked products. Therefore, consumers are advised to cook or bake flax seeds before consumption to reduce the risk of poisoning symptoms, which can range from headaches to severe respiratory issues.    

In addition to hydrocyanic acid, traces of mineral oils and pesticides were detected in several samples. Some products exceeded the recommended thresholds for mineral oil aromatic hydrocarbons (MOAH), which are concerning due to the potential carcinogenic effects of some of them. The study also found cadmium, a toxic heavy metal, in some products.    

Rancidity was another significant concern noted in the analysis, affecting not only the taste but also the safety of the product. Experts recommend consuming no more than 15 grams of ground flaxseed per day for adults and suggest that children under four should avoid it altogether.    

Overall, while flax seeds offer numerous health benefits, this analysis underscores the importance of ensuring that consumers are aware of potential contaminants and the necessity of thorough testing and regulation in the food industry.      

 

Source:  

ÖkoTest