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HDL42
Triglycerides180
ApoB110
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Alanine Aminotransferase (ALT)mg/dL
Gamma-Glutamyl Transferase (GGT)mg/dL
Alkaline Phosphatase (ALP)mg/dL
2 U/L very low
0 from your result
very lowelevatedvery high
1normal 5 to 41500
what this means

2 is very low, just outside the range for AST.

this is the average reading · make it yours below

reading as

This one sits close to the edge. Not a problem today, but it is the band where small changes decide which way it goes, and where the rest of your panel starts to matter more than this number alone.

You are 3 U/L under the normal floor of 5. That reads very low.

2 is very low. That is below the normal range for AST. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

recheck in 12 weeks

Your BloodMarker report · Aspartate Aminotransferase (AST)

Aspartate Aminotransferase (AST) 2 U/L: Is That Low?

Not really. 2 U/L is just outside the normal range for AST.

But a number alone is only half the story. Your Alanine Aminotransferase (ALT), Gamma-Glutamyl Transferase (GGT) and your risk factors decide how much it means. Tell it who you are.

Reviewed against ALF, NIH, Mayo Clinic, AGA guidelines · Last reviewed March 22, 2026

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YOUR NUMBERS

Normal: <40
Raised: 40-79
High: 80+

Values in U/L. Your Aspartate Aminotransferase (AST) of 2 is marked.

What they say together.

Aspartate Aminotransferase (AST) is read as part of a set. Add the ones printed next to it on your test and the figures below work themselves out, with the ranges this page uses for each.

U/LNORMAL
U/LexampleNORMAL
U/LexampleRAISED
2 ÷ 38 =0.1AST to ALT ratio, the De Ritis ratio. Under 1 is the usual fatty-liver pattern; above 2 points at alcohol.
62 and 381.6GGT against ALT. GGT rising faster than ALT is the pattern that separates alcohol and bile flow from fat in the liver.
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Is Aspartate Aminotransferase (AST) 2 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 2 U/L might be considered a very low or even an optimally healthy reading. This level typically falls well below what many laboratories consider the lower end of a standard reference range.

In most contexts, such a low Aspartate Aminotransferase result is not a cause for concern. Understanding what this number means can offer valuable insights into your overall health picture.

what this page cannot tell you

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

This page has not been given your ALT, so that half of the picture is missing here. It is describing the average reader with Aspartate Aminotransferase (AST), not you.

Read mine against my ALT →

A circulating Aspartate Aminotransferase (AST) value of 2 U/L falls significantly below the typical reference range of 5-40 U/L, marking it as a notably low result that warrants clinical attention.

While high AST levels usually signal cellular damage, a value this low suggests a problem with the enzyme's production or function rather than direct tissue injury. One primary concern at such a reduced level is a deficiency in pyridoxal-5-phosphate (P5P), or Vitamin B6, as AST is a B6-dependent enzyme.

Without adequate B6, the enzyme cannot be properly activated, leading to a diminished measured activity. Another potential cause, especially in chronic health conditions, could be advanced kidney disease or severe malnutrition, where the body's overall metabolic processes and enzyme synthesis might be impaired.

To investigate this finding, healthcare providers typically recommend specific follow-up tests, including direct measurement of Vitamin B6 levels and a comprehensive metabolic panel to assess kidney and overall liver function.

A repeat AST test is also often ordered to confirm the persistence of the low value, ruling out any transient factors or lab interference. What many patients don't realize is that while high liver enzyme readings are widely discussed, exceptionally low values like 2 U/L are less common but can be a crucial, early indicator of underlying nutritional deficits that impact numerous bodily functions beyond just liver health, making it an important finding not to overlook.

The liver and Aspartate Aminotransferase (AST) LIVER Produces Aspartate Aminotransferase (AST) Blood supply Bile output Elevated Aspartate Aminotransferase (AST) may indicate liver cell damage or stress
for your numbersThe section below is written for 2 against a general adult target. What 2 means for you depends on the rest of your lipids and your other risk factors. Your report starts from your whole picture, not one line.
for your numbersThe risk below is the average one for this AST. Whether it applies to you depends on the rest of your panel, which the article has not been given. Add them and this stops describing strangers.

Hidden Risk of Aspartate Aminotransferase (AST) 2 U/L

When considering an Aspartate Aminotransferase (AST) 2 U/L level, it is important to understand that such a low number is generally not associated with hidden health risks in itself. Aspartate Aminotransferase is an enzyme, a type of protein, found inside various cells throughout your body, particularly in your liver, heart, and muscles.

When these cells are damaged, they can release AST into your bloodstream, leading to higher levels. Therefore, a very low Aspartate Aminotransferase (AST) 2 U/L typically suggests that there is minimal or no significant cell damage occurring in the organs where this enzyme is present, which is generally a positive indicator for your well-being.

It reflects a state where these essential bodily systems are likely functioning smoothly without signs of acute distress or chronic inflammation that would cause enzymes to spill out. The focus, instead, often shifts to what higher AST levels might signify, but for a 2 U/L reading, the implication is usually one of good health and cellular integrity.

Engaging with information about general health and disease prevention becomes the primary educational goal rather than identifying a specific risk linked to this particular low number. Your body's intricate systems work in harmony, and an enzyme level like this offers a snapshot of that peaceful balance.

This understanding helps empower you to consider holistic wellness rather than focusing on a non-issue.

what this page cannot tell you

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

This page has not been given your ALP, so it cannot tell you which of those you are. It is describing the average reader with Aspartate Aminotransferase (AST), not you.

Read mine against my ALP →

A significantly low aspartate aminotransferase (AST) level, such as that observed at 2 U/L, is not typically associated with direct acute risks but rather can be a subtle indicator of underlying metabolic disturbances or nutritional deficiencies that may impair cellular function over time.

While extremely low AST is uncommon, it can reflect a reduced synthesis of pyridoxal-5-phosphate (P5P), the active form of vitamin B6, which is a critical cofactor for AST activity. Chronic depletion of P5P can subtly affect amino acid metabolism and neurotransmitter synthesis, potentially leading to nonspecific symptoms like fatigue or neurological changes over an extended period, though direct causal links to major health events at this specific low value remain rare and often confounded by other factors.

for your numbersThis section lists every reason AST moves, because on its own the number cannot say which is yours. The rest of your panel and a few risk factors would cross most of them off in a sentence.
  • An Aspartate Aminotransferase (AST) 2 U/L level is generally not indicative of hidden risks.
  • It often suggests healthy cellular function and minimal tissue damage.

This part is about the number

Everything below explains what raises Aspartate Aminotransferase (AST). It cannot tell you which of them is yours.

Your test can. Every marker on it is read against every other one, which is where the answer actually lives.

PDF or a photo of the printout · read in seconds

What Does a Aspartate Aminotransferase (AST) Level of 2 U/L Mean?

Aspartate Aminotransferase (AST) is an enzyme, which is a protein that helps speed up chemical reactions in the body. It plays a crucial role in metabolism, the process by which your body converts food into energy.

You can think of enzymes like tiny construction workers inside your cells, each with a specific job. AST is particularly abundant in the cells of your liver, heart, skeletal muscles, kidneys, and brain.

When these cells are healthy and intact, AST stays mainly inside them. However, if cells are damaged due to injury, illness, or inflammation, they can release their contents, including AST, into your bloodstream.

This is why healthcare providers sometimes use AST levels to check for potential damage to these organs. A higher-than-normal Aspartate Aminotransferase level could suggest that cells are breaking down. For instance, if liver cells are damaged, more AST might be found in the blood.

When your Aspartate Aminotransferase (AST) is 2 U/L, it means that very little of this enzyme is circulating in your blood. This typically indicates that the cells where AST is usually found are healthy and intact, and there's no significant leakage of the enzyme into your bloodstream.

In essence, a level like 2 U/L is often seen as a sign of excellent cellular health and robust organ function, particularly concerning your liver, which is a primary source of AST.

It suggests that your body's systems are in a state of balance and performing their functions efficiently without noticeable cellular distress. This reading is usually reassuring, reflecting a well-maintained internal environment where cells are not being unduly stressed or damaged.

It's a positive piece of information within your overall health profile, indicating a harmonious state within the body's metabolic processes and organ systems.

Experiencing an AST value of 2 U/L strongly suggests a profound deficiency in vitamin B6 (pyridoxine), as this vitamin is essential for the synthesis and function of AST. This deficiency is most commonly linked to inadequate dietary intake of B6-rich foods, such as poultry, fish, legumes, and fortified cereals, or increased requirements due to certain medical conditions or medications that interfere with B6 metabolism.

Alcoholism is a frequent culprit, as it impairs B6 absorption and utilization. Additionally, some medications, particularly certain anti-tuberculosis drugs like isoniazid, can deplete B6 levels. Less commonly, severe liver disease can also present with very low AST, although this is often accompanied by other deranged liver enzymes.

Your AST 2 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?
AST + ALP
AST and ALP together distinguish between liver cell damage and cholestatic disease, which have completely different treatments.
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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The part one number cannot show
Your AST of 2 means different things depending on its companion markers.
Your full panel shows which story is yours.
See what is driving yours →

Lifestyle Changes for Aspartate Aminotransferase (AST) 2 U/L

Maintaining an Aspartate Aminotransferase (AST) 2 U/L level, which is already a very healthy indicator, doesn't typically require specific lifestyle changes aimed at lowering AST. Instead, the focus should be on embracing general wellness practices that support overall health and keep all your body's systems functioning optimally.

These practices naturally contribute to maintaining healthy enzyme levels and cellular integrity across your organs, including the liver and heart. Regular physical activity is a cornerstone of a healthy lifestyle.

Engaging in moderate exercise most days of the week, such as brisk walking, swimming, or cycling, can support cardiovascular health, improve circulation, and help manage weight. These benefits are important for all organs, ensuring they receive adequate oxygen and nutrients and can process waste effectively.

For instance, the American Heart Association emphasizes the importance of physical activity for a healthy heart, which indirectly supports stable enzyme levels like Aspartate Aminotransferase. Adequate sleep is another vital component.

When you sleep, your body performs essential repair and regeneration processes. Chronic sleep deprivation can put stress on your body, potentially affecting various biological markers. Aiming for 7-9 hours of quality sleep each night allows your body to rest and restore itself, contributing to overall cellular health and resilience.

Managing stress effectively is also key. Chronic stress can have a wide-ranging impact on your physical health. Techniques such as mindfulness meditation, yoga, spending time in nature, or engaging in hobbies can help reduce stress levels.

By mitigating stress, you support your body's ability to maintain equilibrium and protect cells from damage that could potentially lead to elevated enzyme levels. Avoiding harmful substances, such as excessive alcohol consumption and recreational drugs, is critical for liver health.

The liver is the body's primary detoxifying organ, and consistent exposure to toxins can lead to inflammation and damage. While an Aspartate Aminotransferase (AST) 2 U/L suggests a healthy liver, continuing to make choices that protect this vital organ is always beneficial.

Staying well-hydrated by drinking plenty of water throughout the day also supports all bodily functions, including kidney health and metabolic processes. These comprehensive lifestyle choices reinforce the healthy state suggested by an Aspartate Aminotransferase (AST) 2 U/L result, contributing to your long-term well-being and vitality.

Given an AST result of 2 U/L, the immediate next step is to discuss vitamin B6 status with your healthcare provider. They will likely order a serum vitamin B6 (pyridoxal-5-phosphate) level to confirm the deficiency and assess its severity.

A trial of high-dose vitamin B6 supplementation, typically 50-100 mg daily, should be initiated under medical supervision, and dietary counseling to increase B6 intake from food sources should be provided.

Follow-up AST testing in 4-6 weeks is crucial to monitor the response to supplementation and confirm normalization. If supplementation does not yield expected results, further investigation into medication side effects or malabsorption issues may be warranted.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

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