What organ filters toxins from the blood?

The liver is often regarded as the body's primary filter for toxins in the blood. It performs vital functions by processing nutrients from the digestive system and detoxifying harmful substances, such as drugs and alcohol. The liver converts these toxins into harmless substances or prepares them for excretion from the body.

It also metabolizes proteins and produces bile, which is critical for digestion and absorption of fats. This multifaceted role in filtering and detoxifying makes the liver a crucial organ for maintaining overall health and metabolic balance. The other organs listed, while they have significant roles in the body, are not primarily responsible for filtering toxins in the same comprehensive way that the liver does.