Many people have never heard of an “ALT” blood test. ALT is made in the liver and is released into the bloodstream when the liver is injured. If your ALT levels are high, you may need further testing to determine the cause. For example, 1 in 3 adults have a high ALT levels because of a condition called non-alcohol associated liver disease, or NAFLD for short. Your healthcare provider can share ways to treat NAFLD through food choices and lifestyle changes. If you have not had an ALT test or are not sure whether you have had the test (a simple blood test), speak to your healthcare provider.