What does Aspartate Aminotransferase (AST) 373 U/L specifically indicate about my liver?

Aspartate Aminotransferase (AST) 373 U/L is a high level that suggests cellular activity or damage in various parts of the body, including the liver. While Aspartate Aminotransferase (AST) is found in many organs, it is often associated with liver health because the liver contains a significant amount of this enzyme. An elevated Aspartate Aminotransferase (AST) 373 U/L does not by itself diagnose a specific liver condition, but it does signal that a deeper look into liver function and health might be necessary. Your healthcare provider will consider this Aspartate Aminotransferase (AST) 373 U/L result alongside other lab values, such as Alanine Aminotransferase (ALT), and your medical history to form a complete picture and explore what it might mean for your liver.

Can certain foods or drinks cause an Aspartate Aminotransferase (AST) 373 U/L reading?

While no specific food or drink is known to directly cause an Aspartate Aminotransferase (AST) 373 U/L reading, your overall dietary patterns can influence your general health, which in turn could impact enzyme levels. For example, excessive alcohol consumption is a well-known factor that can affect liver cells and potentially lead to elevated Aspartate Aminotransferase (AST) levels. Similarly, diets very high in unhealthy fats or sugars might contribute to conditions that could eventually affect organs where Aspartate Aminotransferase (AST) is present. However, a single Aspartate Aminotransferase (AST) 373 U/L result is unlikely to be solely due to a specific food item. A balanced diet and responsible lifestyle choices are generally recommended to support overall well-being and might be part of a broader health strategy.

Is Aspartate Aminotransferase (AST) 373 U/L a cause for immediate concern?

An Aspartate Aminotransferase (AST) 373 U/L reading is significantly higher than typical normal ranges and generally warrants prompt discussion with your healthcare provider. While it is important not to panic, an elevation of this magnitude usually prompts further investigation to understand the underlying cause. It is a piece of information that suggests cellular activity in tissues where Aspartate Aminotransferase (AST) is found, and a medical professional will help determine the urgency and appropriate next steps. They will combine this Aspartate Aminotransferase (AST) 373 U/L result with your symptoms, medical history, and other diagnostic tests to provide a comprehensive assessment and develop a personalized plan for you.

Aspartate Aminotransferase (AST) 373 U/L: Is That High?

Name: Aspartate Aminotransferase (AST) 373 U/L — Is It High? What to Do
Creator: Ernestas K.
Published: 2026-03-24

Bottom line: Aspartate Aminotransferase (AST) 373 U/L — see your doctor to discuss this result.

Written by

Ernestas K.

Clinical research writer specializing in human health, biology, and preventive medicine.

Reviewed against ALF, NIH, Mayo Clinic, AGA guidelines · Last reviewed March 24, 2026

YOUR RESULT

373 U/L

Very High

In This Article

Is Aspartate Aminotransferase (AST) 373 U/L Low, Normal, or High?
Hidden Risk of Aspartate Aminotransferase (AST) 373 U/L
What Does Aspartate Aminotransferase (AST) 373 U/L Mean?
Lifestyle Changes for Aspartate Aminotransferase (AST) 373
Diet Changes for Aspartate Aminotransferase (AST) 373
Aspartate Aminotransferase (AST) 373 in Men, Women, Elderly, and Kids
Medicine Effects on Aspartate Aminotransferase (AST) 373
When to Retest Aspartate Aminotransferase (AST) 373 U/L
Aspartate Aminotransferase (AST) 373 FAQ
When to See a Doctor About Aspartate Aminotransferase (AST) 373

Is Aspartate Aminotransferase (AST) 373 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 373 U/L might be considered a high result when compared to typical reference ranges. This enzyme level often falls above what is usually observed in general health screenings, suggesting that cells where Aspartate Aminotransferase (AST) is found may have experienced some form of disruption. While a single number does not tell the whole story, an elevated Aspartate Aminotransferase (AST) level often prompts further exploration. Understanding what this specific value means can empower you to engage more fully in discussions about your overall well-being.

Aspartate Aminotransferase (AST) Range	Values
Very Low	Below 5 U/L
Normal	5 - 40 U/L
Mildly Elevated	41 - 80 U/L
Elevated	81 - 200 U/L
Very High	201+ U/L

Your AST 373 means different things depending on your other markers

AST + ALT

The AST/ALT ratio above 2:1 suggests alcoholic liver disease. Near 1:1 points to non-alcoholic fatty liver. Which is yours?

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AST + ALP

AST and ALP together distinguish between liver cell damage and cholestatic disease, which have completely different treatments.

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AST + Creatine Kinase

If your CK is also high, your elevated AST might be from muscle damage, not liver damage at all.

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Hidden Risk of Aspartate Aminotransferase (AST) 373 U/L

An elevated Aspartate Aminotransferase (AST) 373 U/L could be a signal from your body, suggesting that certain cells might be under stress or experiencing damage. Aspartate Aminotransferase (AST) is an enzyme, a type of protein, found inside various cells throughout your body, including those in the liver, heart, skeletal muscles, and kidneys. When these cells are injured or damaged, the Aspartate Aminotransferase (AST) enzyme can leak out of them and enter the bloodstream, which is then detected in a blood test. A high level, such as Aspartate Aminotransferase (AST) 373 U/L, often indicates that more investigation might be helpful to pinpoint the source of this cellular activity. While it does not diagnose a specific condition, it acts as a valuable piece of information for your healthcare provider. Understanding these potential indications can help you prepare for a more informed conversation with your medical team about your Aspartate Aminotransferase (AST) 373 U/L result.

Here are some general areas that might be explored in the context of an elevated Aspartate Aminotransferase (AST):

**Cellular health:** Exploring the health status of cells in organs where AST is abundant.
**Body's responses:** Understanding how your body is responding to various internal or external factors.

What Does a Aspartate Aminotransferase (AST) Level of 373 U/L Mean?

Aspartate Aminotransferase (AST), often simply called AST, is an enzyme that plays a crucial role inside cells by helping to convert food into energy. Think of enzymes as tiny workers that perform specific jobs within your body's cells. They are normally contained within these cells, which is where they carry out their vital functions. When cells are healthy, very little Aspartate Aminotransferase (AST) is found in the bloodstream. However, when cells are damaged or inflamed, their membranes can become permeable, allowing these enzymes to escape into the circulating blood. This leakage is what laboratory tests measure. A result like Aspartate Aminotransferase (AST) 373 U/L means that a notable amount of this enzyme has entered the bloodstream, potentially pointing to cellular damage in one or more of the tissues where Aspartate Aminotransferase (AST) is highly concentrated. This could include the liver, heart, muscles, or kidneys, among others. It is important to remember that Aspartate Aminotransferase (AST) is not exclusive to one organ, so an elevated level serves as a general indicator of cellular disruption rather than a specific diagnosis. A healthcare professional would consider this Aspartate Aminotransferase (AST) 373 U/L value alongside your complete health picture, including other test results and your personal health history, to understand its full meaning. This comprehensive approach is key to interpreting any lab finding accurately.

Reading about one marker can be misleading.

Your blood test has multiple results that affect each other. AST 373 alone doesn't tell you the full picture. Your other markers do.

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Lifestyle Changes for Aspartate Aminotransferase (AST) 373 U/L

While dietary adjustments are important, other aspects of your daily life can also significantly influence your overall well-being and, indirectly, enzyme levels like Aspartate Aminotransferase (AST). Embracing a balanced lifestyle can be a powerful way to support your body's health. For instance, regular physical activity is often recommended by health organizations like the American Heart Association (AHA) for its numerous benefits, including supporting muscle health and circulation. It is about finding activities that you enjoy and can sustain over time, such as brisk walking, swimming, or cycling. The key is consistency and choosing an activity level appropriate for your current health status. Adequate sleep is another cornerstone of good health, as your body uses this time for repair and restoration. Poor sleep patterns can place additional stress on your system, which can have broad effects. Stress management techniques are also vital; chronic stress can impact various bodily functions. Activities like mindfulness, meditation, yoga, or spending time in nature can help manage stress effectively. Avoiding excessive alcohol consumption is another critical lifestyle choice, as alcohol can affect the health of many cells, especially in the liver, where Aspartate Aminotransferase (AST) is abundant. These lifestyle considerations, when viewed holistically, contribute to a supportive environment for cellular health and can play a role in maintaining balanced bodily functions. Discussing these aspects with a healthcare provider can help tailor advice to your unique needs, especially when considering an Aspartate Aminotransferase (AST) 373 U/L reading.