Some common dog toy materials are unsafe due to the presence of toxic chemicals and heavy metals like lead and chromium, identified in studies by organizations such as Consumer Affairs. Additionally, materials like latex may contain BPA, posing health risks if ingested. These substances can be harmful to a dog's health, leading to potential poisoning or long-term health issues. Choosing toys made from natural, non-toxic materials ensures safer play and ingestion, significantly reducing the risk of adverse health effects on your canine companion.