In dogs, liver enzymes such as ALT (alanine aminotransferase), AST (aspartate aminotransferase), and ALP (alkaline phosphatase) play crucial roles in metabolizing nutrients, detoxifying harmful substances, and aiding digestion. Elevated levels of these enzymes often signal liver stress or damage, which can arise from various conditions, including infections, toxins, or chronic diseases. Regular monitoring of liver enzyme levels can help identify potential health issues before they progress, allowing for timely interventions. Maintaining optimal liver function is particularly important for older dogs, as their bodies may become less efficient at processing medications and toxins. An aging dog may be more susceptible to liver-related problems, which can influence overall health and longevity. By understanding liver enzymes and their implications, dog owners can better advocate for their pets' health, ensuring that any necessary adjustments to diet, medications, or lifestyle are made early on to support longevity and well-being.