ALT levels?

How "elevated" was it? There is a marginal of error or fluke.

You can't do anything, as far as I know, to reduce the number of enzymes your liver produces, except take medicine if you have a problem. If your doctor does not order another test in a few months, demand it. Just to be sure. Caught early, many things are easily treated.

I'm not sure how elevated; the nurse called me and just said "minimally elevated," so whatever that means. She said that this is normal and nothing to worry about....but that they want me to come in again in month.

As you've determined, ALT levels are an indicator of liver health but they aren't the only indicator and they don't always indicate liver disease. Elevated ALT, particularly minimally elevated ALT, in the absense of other elevated enzymes is very often due to exercise and is formed during the muscle injury/repair cycle. The fact that you are a runner and lift weights would indicate a liklihood of an elevated ALT. I'm assuming a full chemistry profile was done which would also have included a bilirubin and possibly other liver enzymes such as AST and alkaline phosphatase. The fact that you have no known risk factors for liver disease and no indication that your chemistry profile indicates true liver disease should ease your thoughts.

Follow up with another test as requested to make sure no other markers are showing up, but don't worry too much about a stand-alone, minimally elevated ALT in an athlete. And, don't stop working out to avoid having an elevated ALT. It's a normal by-product of muscle building.

Thank you J_B for the intelligent post; that is the reason I come here, to learn from people like you.

Looks like there's probably no need for alarm, but I'll go back anyway in a month.