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How to lower cpk levels naturally 
Understand that there are certain foods and nutrients that can lower your chances of developing certain diseases. 
These foods, herbs, and vitamins can help to prevent the diseases that lead to elevated levels of cpk. 
Eat foods that are known to lower your cholesterol.
Foods that help to lower your cholesterol levels in turn help to prevent heart disease. Heart disease is one of the most common reasons for high cpk levels, so if you are able to keep your heart disease free, you will be more likely to lower your cpk levels.