Protein powder itself is not inherently bad for your liver. However, excessive consumption of protein, whether from protein powder or other sources, can potentially strain the liver.
The liver is responsible for processing and removing waste and toxins from the body, and when protein intake is very high, the liver must work harder to process and eliminate the excess protein. This can lead to a build-up of ammonia, a byproduct of protein metabolism, which can be toxic to the liver and other organs.
It's important to consume protein in moderation and to have a balanced diet that includes a variety of nutrients, including carbohydrates and fats, in addition to protein. People with liver disease or other liver conditions should speak with their healthcare provider before starting to use protein powder or making any changes to their diet.