What is xenobiotics?

Xenobiotics are chemical substances that are foreign to a biological system, including drugs, pollutants, and food additives. They can originate from synthetic sources or natural products and may affect living organisms' metabolism and health. The body often metabolizes xenobiotics to facilitate their excretion, but some may have toxic effects or disrupt biological processes. Understanding xenobiotics is crucial in fields like toxicology, pharmacology, and environmental science.