Is kava hard on the liver?

Could you elaborate on the potential impact of kava on liver health? I've heard some concerns regarding its safety, and I'm wondering if there are any scientific studies that indicate kava might be hard on the liver. Could you provide any insights on this matter? Additionally, what are the recommended dosages and duration of use to minimize any potential risks? Understanding the risks and benefits of kava is crucial for its safe consumption, and I would appreciate your expert opinion on this topic.