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Aspartate Aminotransferase (AST)mg/dL
Alanine Aminotransferase (ALT)mg/dL
Alkaline Phosphatase (ALP)mg/dL
279 U/L elevated
0 from your result
mildly elevatedelevatedvery high
1normal under 46500
what this means

279 is elevated for GGT, far enough out to be worth acting on.

this is the average reading · make it yours below

reading as

This is outside the range. Worth acting on, and worth seeing next to your other numbers first: the same value means different things depending on what is around it.

You are 233 U/L over the normal ceiling of 46. That reads elevated.

279 is elevated. That is above the normal range for GGT. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

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Your BloodMarker report · Gamma-Glutamyl Transferase (GGT)

Gamma-Glutamyl Transferase (GGT) 279 U/L: Is That High?

Borderline. 279 U/L is outside the normal range for GGT.

But a number alone is only half the story. Your Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT) 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 30, 2026

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YOUR NUMBERS

Normal: <48
Raised: 48-119
High: 120+

Values in U/L. Your Gamma-Glutamyl Transferase (GGT) of 279 is marked.

What they say together.

Gamma-Glutamyl Transferase (GGT) 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/LHIGH
U/LexampleNORMAL
U/LexampleNORMAL
34 ÷ 38 =0.9AST to ALT ratio, the De Ritis ratio. Under 1 is the usual fatty-liver pattern; above 2 points at alcohol.
279 and 387.3GGT 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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Every marker on your test, read against your age and sex. Free.

Is Gamma-Glutamyl Transferase (GGT) 279 U/L Low, Normal, or High?

Gamma-Glutamyl Transferase (GGT) 279 U/L might be considered significantly elevated when compared to typical reference ranges. While the exact "normal" limits can vary slightly from one laboratory to another, a value of 279 U/L generally falls well above what is usually regarded as a healthy level for most adults.

This distinct elevation often signals to a healthcare provider that further exploration is warranted to understand any underlying factors influencing your body's systems. Recognizing this particular number can serve as a vital starting point for a thoughtful and informed discussion with your doctor about your health and what steps might come next.

what this page cannot tell you

Hemoglobin levels combined with this marker can reveal underlying conditions that neither value shows on its own

This page has not been given your Hemoglobin, so that half of the picture is missing here. It is describing the average reader with Gamma-Glutamyl Transferase (GGT), not you.

Read mine against my Hemoglobin →

A Gamma-Glutamyl Transferase (GGT) level of 279 U/L represents a significantly elevated reading, soaring more than five times above the upper limit of the normal range, and strongly indicates active stress or damage within the liver and biliary system.

This substantial elevation often points towards underlying conditions such as chronic alcohol consumption, even if seemingly moderate, or significant issues with the bile ducts, like an obstruction from gallstones or a less common inflammatory process affecting the liver itself, such as hepatitis or non-alcoholic steatohepatitis (NASH).

Given this specific high value, a healthcare provider will typically order a more comprehensive liver function panel, including AST, ALT, and alkaline phosphatase (ALP), to help pinpoint the exact origin of the elevation and assess the extent of liver involvement.

Imaging studies, such as an abdominal ultrasound, are also frequently pursued to assess for fatty liver disease, gallstones, or any structural abnormalities in the bile ducts. A crucial detail often overlooked is that GGT is not solely a marker of liver health; even in the absence of other elevated liver enzymes, persistently high GGT levels, like 279 U/L, are independently associated with an increased risk of future cardiovascular disease and metabolic syndrome, making its normalization a broader health priority.

The liver and Gamma-Glutamyl Transferase (GGT) LIVER Produces Gamma-Glutamyl Transferase (GGT) Blood supply Bile output Elevated Gamma-Glutamyl Transferase (GGT) may indicate liver cell damage or stress
for your numbersThe section below is written for 279 against a general adult target. What 279 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.

Hidden Risk of Gamma-Glutamyl Transferase (GGT) 279 U/L

An elevated Gamma-Glutamyl Transferase (GGT) 279 U/L might be a signal that your body is working harder than usual, potentially indicating areas that warrant closer attention. While often associated primarily with liver health, such a distinct elevation can also link to wider aspects of your well-being, including metabolic processes, and even indicators of cardiovascular health.

A value like 279 U/L is often seen as a prompt for a deeper look into your body’s overall function. It encourages a broader conversation with your healthcare provider about potential areas of focus that extend beyond just the liver.

This could involve exploring factors that contribute to metabolic syndrome or inflammation, which can have far-reaching effects on various organ systems. Understanding the connections between a high GGT reading, especially a Gamma-Glutamyl Transferase (GGT) 279 U/L, and these broader health concerns is a key part of interpreting your results.

what this page cannot tell you

Kidney function reflected by creatinine affects how this marker is processed and what your levels actually mean

This page has not been given your Creatinine, so that half of the picture is missing here. It is describing the average reader with Gamma-Glutamyl Transferase (GGT), not you.

Read mine against my Creatinine →

A Gamma-Glutamyl Transferase (GGT) level of 279 U/L, significantly above the normal range, signals ongoing liver cell stress or damage, potentially from bile duct irritation. This elevated state can contribute to the progression of non-alcoholic fatty liver disease (NAFLD) to more severe stages like fibrosis or cirrhosis by promoting inflammation and oxidative stress within liver cells.

Furthermore, persistently high GGT can be an early indicator of alcoholic liver disease or drug-induced liver injury, even before overt symptoms manifest, increasing the risk of irreversible liver damage and impaired detoxification functions if left unaddressed.

This level suggests a need for close monitoring for potential biliary obstruction or ongoing hepatotoxicity.

for your numbersThe risk below is the average one for this GGT. 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.
  • May suggest increased metabolic stress within the body.
  • Could be connected to markers that indicate cardiovascular system health.
  • Often points to a need for more comprehensive medical evaluation and discussion.
  • Might signal underlying inflammation or oxidative stress that impacts multiple systems.

This part is about the number

Everything below explains what raises Gamma-Glutamyl Transferase (GGT). 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.

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What Does a Gamma-Glutamyl Transferase (GGT) Level of 279 U/L Mean?

When your healthcare provider sees a Gamma-Glutamyl Transferase (GGT) 279 U/L, they are often looking at it as an important piece of a larger puzzle, informing their approach to your health.

Imagine your body as a bustling city, and GGT is like a specialized enzyme that helps with certain chemical reactions, particularly acting as a sensitive indicator found in cells within the liver and bile ducts.

Think of it like a smoke detector in a specific building in your body’s city that goes off when there's an unusual amount of activity, stress, or minor irritation in that area.

A reading of 279 U/L indicates that this "smoke detector" is very active, signaling that something might be requiring extra attention or assessment. It doesn't pinpoint the exact issue on its own, but it strongly suggests that your doctor will want to investigate further to understand why your GGT levels are notably higher than typical.

This level, being significantly elevated, acts as a clear signpost. It directs your healthcare journey towards more specific investigations, which could include exploring liver conditions, the flow of bile, or even looking at other factors that can influence GGT, such as certain medications or lifestyle habits.

Your doctor will consider how different body systems interact and what other markers could provide more clarity, guiding you towards a better understanding of your specific situation and why you have a Gamma-Glutamyl Transferase (GGT) 279 U/L. This number represents a call to action for further dialogue and testing.

A GGT value in the range of 279 U/L is most plausibly linked to heavy or chronic alcohol consumption, as the liver actively metabolizes ethanol, leading to GGT induction and leakage.

Another strong contender is non-alcoholic fatty liver disease (NAFLD) or its more severe form, non-alcoholic steatohepatitis (NASH), where fat accumulation in the liver causes inflammation and elevated liver enzymes. Certain medications, particularly some anticonvulsants, statins, or antibiotics, can also trigger this degree of GGT elevation as a side effect of drug metabolism by the liver, necessitating a review of current prescriptions.

Your GGT 279 means different things depending on your other markers

GGT + Hemoglobin
Hemoglobin levels combined with this marker can reveal underlying conditions that neither value shows on its own
GGT + Creatinine
Kidney function reflected by creatinine affects how this marker is processed and what your levels actually mean
GGT + Fasting Blood Glucose
Blood sugar status interacts with this marker in ways that change the clinical significance of your result
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The part one number cannot show
Your GGT of 279 means different things depending on its companion markers.
Your full panel shows which story is yours.
See what is driving yours →

Lifestyle Changes for Gamma-Glutamyl Transferase (GGT) 279 U/L

When discussing an elevated Gamma-Glutamyl Transferase (GGT) 279 U/L with your healthcare provider, lifestyle adjustments often become a key part of the conversation. These changes are not just about addressing the number itself, but about promoting overall well-being and supporting your body's natural functions.

Engaging in regular physical activity, for instance, has wide-ranging benefits for metabolic health, cardiovascular fitness, and liver function. The American Heart Association suggests aiming for at least 150 minutes of moderate-intensity exercise each week, or 75 minutes of vigorous activity.

This could include brisk walking, cycling, swimming, or even active yard work. Such consistent movement helps improve circulation, aids in weight management, and can reduce inflammation, all of which contribute positively to your body’s internal balance.

Managing stress effectively is another vital component; chronic stress can influence various bodily systems, including hormone levels and inflammatory pathways. Finding healthy outlets like meditation, yoga, deep breathing exercises, spending time in nature, or pursuing enjoyable hobbies can be incredibly beneficial.

Ensuring adequate, restorative sleep, typically 7-9 hours per night for adults, also plays a crucial role in your body's recovery and repair processes, helping to regulate metabolism and support organ function.

Limiting or avoiding alcohol, especially with a value of Gamma-Glutamyl Transferase (GGT) 279 U/L, is often a primary recommendation, as alcohol is a well-known factor that can significantly influence GGT levels.

Your doctor will likely discuss how these positive habits, when adopted consistently, can contribute to bringing your GGT levels back into a healthier range over time, and support your general vitality.

With a GGT reading of 279 U/L, immediate steps should include abstaining from alcohol and reviewing all prescribed and over-the-counter medications with your physician to identify potential hepatotoxic agents. You should schedule a follow-up appointment for repeat liver function tests, including ALT, AST, and alkaline phosphatase, within 2-4 weeks to assess trends.

Consider a dietary assessment focusing on reducing processed foods and saturated fats, which may be contributing if NAFLD is suspected. Referral to a gastroenterologist or hepatologist may be warranted for further investigation, potentially including abdominal ultrasound or more specialized liver assessments.

for your numbersThis section lists every reason GGT 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.
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.

Diet Changes for Gamma-Glutamyl Transferase (GGT) 279 U/L

Addressing an elevated Gamma-Glutamyl Transferase (GGT) 279 U/L through thoughtful dietary choices is a common and important area of focus your doctor might discuss during your consultation. Certain eating patterns can significantly support liver health and overall metabolic function, both of which are intimately connected to GGT levels.

Emphasizing a diet rich in whole foods, brimming with antioxidants, and plentiful in fiber can be highly beneficial in promoting your body’s natural detoxification processes and reducing systemic inflammation. Your healthcare provider might suggest focusing on foods that naturally support these crucial functions.

For example, incorporating a wide variety of colorful fruits and vegetables provides essential vitamins and minerals, while lean proteins found in sources like fish, poultry, and legumes offer the building blocks your body needs without excessive saturated fats.

Choosing healthy fats from avocados, nuts, seeds, and olive oil can also support cellular health. Conversely, limiting the intake of processed foods, sugary beverages, and excessive amounts of saturated and trans fats can ease the burden on your liver and metabolic system.

For a Gamma-Glutamyl Transferase (GGT) 279 U/L, specific dietary considerations are often part of the plan.

  • Prioritize a wide array of colorful fruits and vegetables, such as berries, spinach, and broccoli.
  • Incorporate lean protein sources like fish, poultry, beans, and lentils.
  • Opt for healthy fats found in avocados, nuts, seeds, and olive oil.
  • Significantly reduce or eliminate processed foods, sugary drinks, and foods high in unhealthy fats.
  • Choose whole grains over refined grains to increase fiber intake.
Foods that support liver health Broccoli Cruciferous Coffee Liver-protective Fatty fish Omega-3s Nuts Vitamin E Olive Oil Healthy fats Reduce alcohol and processed foods to support liver recovery
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.

Gamma-Glutamyl Transferase (GGT) 279 U/L in Men, Women, Elderly, and Kids

When considering a Gamma-Glutamyl Transferase (GGT) 279 U/L, it's important to understand that what is considered typical can vary somewhat among different groups of people, a factor your doctor carefully evaluates.

For instance, adult men generally tend to have slightly higher GGT levels than adult women. These differences are often linked to hormonal influences, variations in body composition, and different metabolic rates.

However, even with these general trends, a value of 279 U/L is considerably elevated for both men and women and would prompt further investigation. In children, GGT levels are typically much lower than in adults, and any significant elevation, especially a value as high as 279 U/L, would be carefully evaluated by a pediatrician, as it could indicate different underlying conditions than in adults.

For older adults, GGT levels can sometimes naturally increase slightly with age, often due to a combination of factors including age-related changes in metabolic function and the increased likelihood of taking multiple medications.

Nevertheless, a level of 279 U/L in an older individual would still be considered notably elevated and would warrant thorough investigation regardless of age. These age and sex-related variations are important factors your doctor considers when interpreting your specific GGT result, helping them to tailor their assessment and recommendations to your unique circumstances.

The World Health Organization (WHO) often highlights the importance of considering these demographic differences in various health markers to ensure accurate clinical interpretation and appropriate patient care. This nuanced understanding helps your doctor build a comprehensive picture of your health.

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.

Medicine Effects on Gamma-Glutamyl Transferase (GGT) 279 U/L

When your healthcare provider reviews your Gamma-Glutamyl Transferase (GGT) 279 U/L, they will also take into careful consideration any medications you are currently taking. It's well-known that various prescribed and over-the-counter medicines, as well as certain supplements, can sometimes influence GGT levels.

These effects can occur either by directly affecting liver function, altering the body's metabolic processes, or even by inducing the enzymes themselves. For a significantly elevated value like 279 U/L, it’s crucial to have an open and comprehensive conversation with your doctor about your complete medication list.

This includes all prescription drugs, any over-the-counter remedies, herbal supplements, and even vitamins. This detailed information is vital because it helps your healthcare team accurately interpret your GGT results and determine if a medication could be contributing to the elevated GGT, or if the elevation points to a separate underlying condition.

Your doctor might explore whether any current treatments are impacting your levels or if an adjustment to your medication regimen is appropriate, always emphasizing patient safety. A thorough medication review is an essential step for accurately interpreting an elevated GGT result like 279 U/L.

  • Many types of medications, both prescription and over-the-counter, can temporarily elevate GGT levels.
  • Always provide a complete list of all supplements, herbal remedies, and vitamins to your doctor.
  • It is critical to never stop or change any prescribed medications without direct professional medical guidance.
  • A thorough medication review is an essential step for accurately interpreting an elevated GGT result like 279 U/L.
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.

When to Retest Gamma-Glutamyl Transferase (GGT) 279 U/L

Discovering a Gamma-Glutamyl Transferase (GGT) 279 U/L often leads to a thoughtful discussion with your healthcare provider about when and if to repeat the test. The decision to recheck GGT levels is typically not a standalone one, but rather an integral part of a broader strategy to monitor your health and assess the effectiveness of any interventions.

Your doctor will take into account the initial GGT reading, which at 279 U/L is quite high, any symptoms you may be experiencing, the results of other related blood tests (such as other liver enzymes), and any lifestyle changes or treatments that might have been initiated.

For a significantly elevated value like this, follow-up testing is almost always recommended to track trends, assess how well any changes are working, or to investigate further if the underlying cause remains unclear despite initial assessments.

The National Institutes of Health (NIH) emphasizes the importance of sequential testing to observe changes over time, rather than relying solely on a single snapshot of your health. This approach allows your doctor to see if the GGT levels are responding to interventions, stabilizing, or continuing to rise.

Your doctor will provide personalized guidance on the appropriate timing for any follow-up blood work, ensuring a thoughtful, data-driven approach to managing your health journey and aiming for improved outcomes and a better understanding of what a Gamma-Glutamyl Transferase (GGT) 279 U/L indicates.

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.

Gamma-Glutamyl Transferase (GGT) 279 U/L — Frequently Asked Questions

When discussing a Gamma-Glutamyl Transferase (GGT) 279 U/L with your healthcare provider, helpful questions might include: 'What are the most likely causes for this significantly elevated level in my specific case?', 'What additional diagnostic tests would you recommend to gain a clearer understanding?', 'What specific lifestyle changes or treatments do you believe would be most beneficial for me at this point?', and 'What is the recommended timeline for rechecking my GGT levels after we begin a plan?' Asking these questions helps ensure a comprehensive discussion tailored to your health.

Yes, it is entirely possible to have a Gamma-Glutamyl Transferase (GGT) 279 U/L without experiencing noticeable symptoms or feeling unwell. GGT is often discovered during routine blood work, acting as a sensitive early indicator that something might be requiring attention within your body's systems, even before any specific physical discomfort arises.

This is precisely why your doctor will want to investigate further, even if you report feeling perfectly fine, to identify the underlying cause and ensure your long-term well-being.

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.

After identifying a Gamma-Glutamyl Transferase (GGT) 279 U/L, your doctor will likely recommend additional tests to gain a clearer picture of your health. This could involve other liver function tests, imaging studies like an ultrasound or MRI, or tests to check for metabolic factors, certain infections, or genetic predispositions.

They will also thoroughly review your medical history, current medications, and lifestyle habits in detail. Given the significant elevation, it's generally advised to follow up with your doctor promptly, usually within a few weeks, to discuss the results and establish a personalized plan of action.

The goal is to pinpoint the specific reason for the elevation and then discuss a strategy that might include lifestyle adjustments or further medical management.

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.

When to See a Doctor About Gamma-Glutamyl Transferase (GGT) 279 U/L

When you receive a Gamma-Glutamyl Transferase (GGT) 279 U/L, it's a clear and important signal to promptly schedule a conversation with your healthcare provider. This particular value is significantly elevated, making a professional medical assessment a crucial next step.

While this information is purely educational and designed to help you understand your results, it underscores the immense value of discussing your findings with a doctor who can integrate this GGT level with your complete medical history, the results of any other blood tests, and your unique personal health context.

The Mayo Clinic consistently advises that any marked deviation from typical laboratory values, especially one as pronounced as 279 U/L for GGT, warrants careful medical review. Your doctor is the best resource to help interpret what a Gamma-Glutamyl Transferase (GGT) 279 U/L means specifically for you, guide you through any necessary follow-up tests, and collaborate with you on a comprehensive strategy to support your health.

Taking this proactive step ensures you receive personalized care, tailored advice, and a clear understanding of your next steps in managing your health journey effectively.

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What you actually get

A page like this one, written about you.

You have just spent a few minutes reading a page written for a number. Upload your whole test and you get the same thing written for your body: every marker read against every other, in the order they should be fixed, as something you read rather than a dashboard you have to decode.

  • Read in orderWhich number to deal with first, and which ones are only following it.
  • Written, not chartedThe same voice as this page, about your own blood, on your own page.
  • Every retest joins itThe line builds itself, so the next version shows what moved.

Sources

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