In the Mediterranean region, a growing trend in agriculture involves using recycled water and turning by-products into valuable resources. This shift has raised concerns about potential contaminants seeping into the food chain. Plant-based dietary supplements, in particular, may harbor environmental pollutants. These supplements are made from plant materials that could absorb contaminants during growth, and processing can concentrate both beneficial and harmful substances. A recent investigation into a Mediterranean dietary supplement, crafted from various plant by-products grown with recycled water irrigation, uncovered a range of emerging contaminants. The study used advanced testing to detect pharmaceuticals, pesticides, cyanotoxins, and other substances of concern.
The results showed 24 pharmaceuticals, 16 pesticides, and 4 cyanotoxins in the supplement. Pesticides were the most prevalent contaminants, with phosmet, fluazinam, and chlorantraniliprole being the top contributors. Some pharmaceuticals, like piroxicam and diclofenac, were also detected. Although the levels were low, the presence of multiple contaminants highlights the need for a comprehensive approach to assessing exposure to these substances. Children's smaller body sizes make them more vulnerable to these contaminants compared to adults. This study serves as a proof-of-concept, emphasizing the importance of monitoring and evaluating the safety of plant-based supplements.
