Can to much Tylenol cause alt to be high?

Yes, excessive use of Tylenol (acetaminophen) can lead to elevated alanine aminotransferase (ALT) levels, indicating liver damage or stress. The liver metabolizes acetaminophen, and an overdose can overwhelm its capacity, resulting in hepatotoxicity. It's crucial to adhere to recommended dosages and consult a healthcare professional if there are concerns about liver function or medication use.