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Creatininemg/dL
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56 mL/min/1.73m² mildly-moderately reduced (stage 3a ckd)
0 from your result
kidney failureseverely reducedmoderately-severely reducedmildly-moderately reducedmildly reducednormal or high
1normal or high above 90120
what this means

56 is mildly-moderately reduced (stage 3a ckd) for eGFR, 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 34 mL/min/1.73m² under the normal or high floor of 90. That reads mildly-moderately reduced (stage 3a ckd).

56 is mildly-moderately reduced (stage 3a ckd). That is below the normal range for eGFR. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

recheck in 12 weeks
Estimated Glomerular Filtration Rate + Creatinine

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

Estimated Glomerular Filtration Rate + Fasting Blood Glucose

Blood sugar status interacts with this marker in ways that change the clinical significance of your result

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Your BloodMarker report · eGFR (Estimated Glomerular Filtration Rate)

eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²: Is That High?

Borderline. 56 mL/min/1.73m² is outside the normal range for eGFR.

But a number alone is only half the story. Your Creatinine, Blood Urea Nitrogen (BUN) and your risk factors decide how much it means. Tell it who you are.

Reviewed against NKF, NIH, CDC, KDIGO, Mayo Clinic guidelines · Last reviewed March 26, 2026

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Is eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² Low, Normal, or High?

eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² might be considered slightly below the ideal range for typical adult kidney function. While not severely low, this value indicates a mild reduction in the efficiency with which your kidneys filter waste from your blood.

Understanding what this specific eGFR level suggests about your long-term kidney health is a valuable step. Let's explore what this number means for your future well-being and how small adjustments can make a big difference over time.

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 eGFR (Estimated Glomerular Filtration Rate), not you.

Read mine against my Hemoglobin →

An eGFR result of 56 mL/min/1.73m² signifies Stage 3a Chronic Kidney Disease (CKD), indicating a mild-to-moderate but definite reduction in your kidneys' filtering capacity. This level is a clear warning that your kidneys are not functioning optimally and warrants attention.

Common contributors at this stage often include uncontrolled high blood pressure (hypertension) over time, long-standing diabetes, or even age-related changes combined with other vascular risk factors. To understand the full picture, your healthcare provider will typically recommend follow-up tests.

These often involve repeating the eGFR measurement to confirm stability or progression, and a urine test, specifically a urine albumin-to-creatinine ratio (UACR), to check for protein in your urine. Proteinuria is a key indicator of kidney damage and helps assess the risk of further decline.

Blood pressure monitoring is also crucial, as managing hypertension is paramount in preserving kidney function. Many people at this eGFR level experience no noticeable symptoms, meaning this finding often comes as a surprise from routine blood work.

However, this silent nature also presents a significant opportunity: with appropriate lifestyle modifications and medical management, progression to more advanced stages of kidney disease can often be slowed or even halted, allowing many individuals to maintain this kidney function for years.

How the kidneys filter egfr (estimated glomerular filtration rate) LEFT RIGHT Bladder Kidneys filter waste products like egfr (estimated glomerular filtration rate) from your blood
for your numbersThe section below is written for 56 against a general adult target. What 56 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 eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

An eGFR (Estimated Glomerular Filtration Rate) of 56 mL/min/1.73m² suggests that your kidneys are filtering waste a little less effectively than they ideally should, placing you in a category often associated with early, mild chronic kidney disease.

While this level might not cause noticeable symptoms right away, it's a signal to understand potential long-term risks. Over months and years, if ignored, this reduced filtration rate can subtly increase the risk for other health challenges, making proactive management crucial for maintaining your overall well-being.

The National Kidney Foundation highlights that even mild reductions in eGFR, like 56 mL/min/1.73m², can be linked to a higher risk of developing more serious conditions later in life.

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 eGFR (Estimated Glomerular Filtration Rate), not you.

Read mine against my Creatinine →

At an eGFR of 56 mL/min/1.73m², your kidneys are filtering waste and excess fluid at a reduced capacity, increasing the risk of developing complications such as anemia due to insufficient erythropoietin production.

This level also elevates the likelihood of mineral and bone disorders, as the kidneys struggle to regulate phosphate and calcium balance, potentially leading to bone pain and increased fracture risk.

Furthermore, impaired kidney function at this stage can affect blood pressure control, creating a cycle where hypertension further damages the kidneys. Accumulation of uremic toxins, even at this mild-moderate reduction, can contribute to cardiovascular issues, including heart disease and stroke, over time.

for your numbersThe risk below is the average one for this eGFR. 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.
  • Increased likelihood of progression to lower kidney function over time.
  • Higher risk for cardiovascular issues, such as heart disease and stroke.
  • Potential for bone health problems or anemia to develop silently.

This part is about the number

Everything below explains what raises eGFR (Estimated Glomerular Filtration Rate). 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 eGFR (Estimated Glomerular Filtration Rate) Level of 56 mL/min/1.73m² Mean?

Your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² is essentially a snapshot of how well your kidneys are performing their vital job as your body's natural filtering system. Imagine your kidneys like two sophisticated water purifiers working continuously to clean your body's blood.

They remove waste products and excess water, ensuring your system stays balanced. A value of 56 mL/min/1.73m² suggests that these purifiers are operating at about 56% of the optimal capacity seen in a young, healthy adult.

It's like having a water filter that's still doing its job, but perhaps not quite as quickly or thoroughly as when it was brand new. This number is an estimate, calculated from a blood test using factors like your age, sex, and ethnicity, providing a crucial indicator of your kidney function.

The Mayo Clinic emphasizes that understanding this number is key to monitoring kidney health and taking steps to preserve kidney function for years to come. It doesn't mean your kidneys are failing; rather, it indicates they are working with a slightly reduced efficiency, making awareness and proactive care important for your long-term health trajectory.

An eGFR in the range of 56 mL/min/1.73m² is often linked to long-standing, uncontrolled conditions. Diabetes mellitus is a prime suspect, where elevated blood glucose levels over years damage the small blood vessels in the kidneys.

Similarly, chronic hypertension, if not adequately managed, exerts persistent pressure on the delicate kidney structures, impeding their filtration efficiency. Certain medications, particularly long-term use of NSAIDs like ibuprofen or naproxen for pain relief, can also contribute to this level of reduced kidney function by decreasing blood flow to the kidneys.

Your Estimated Glomerular Filtration Rate 56 means different things depending on your other markers

Estimated Glomerular Filtration Rate + Hemoglobin
Hemoglobin levels combined with this marker can reveal underlying conditions that neither value shows on its own
Estimated Glomerular Filtration Rate + Creatinine
Kidney function reflected by creatinine affects how this marker is processed and what your levels actually mean
Estimated Glomerular Filtration Rate + Fasting Blood Glucose
Blood sugar status interacts with this marker in ways that change the clinical significance of your result
for your numbersThis section lists every reason eGFR 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.

Lifestyle Changes for eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

Beyond specific food choices, several lifestyle adjustments can play a significant role in supporting kidney health and influencing the long-term trajectory of your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m².

Engaging in regular physical activity is one powerful way to maintain overall health, which in turn supports kidney function. Think of exercise as helping to keep your body's systems, including your kidneys, running smoothly.

Aim for activities that you enjoy, whether it's brisk walking, swimming, or cycling, for at least 30 minutes most days of the week. Managing stress effectively also contributes to better health outcomes; chronic stress can have widespread effects on the body.

Techniques like mindfulness, meditation, or simply spending time in nature can be beneficial. Ensuring you get adequate, quality sleep each night is another cornerstone of good health, allowing your body to repair and restore itself.

The World Health Organization (WHO) frequently highlights the interconnectedness of these lifestyle factors with long-term organ health, including the kidneys. These habits, when consistently practiced, help create a supportive environment for your kidneys to continue functioning at their best for as long as possible.

Your next step with an eGFR of 56 mL/min/1.73m² is to schedule a follow-up with your primary care physician to discuss potential underlying causes and confirm this value with a repeat test in 1-3 months, ideally including a urinalysis for protein.

Focus on aggressively managing blood pressure and blood glucose if those conditions are present, which may involve dietary adjustments like reducing sodium intake and seeking guidance from a registered dietitian.

Consider discussing with your doctor any regular use of NSAIDs, and if appropriate, explore alternative pain management strategies. Referral to a nephrologist is advisable for further evaluation and management planning.

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.
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 eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

When your eGFR (Estimated Glomerular Filtration Rate) is at 56 mL/min/1.73m², focusing on a kidney-friendly diet can be a cornerstone of preserving your kidney function over many years. Dietary choices have a profound impact on how hard your kidneys have to work to filter waste products from your blood.

Making thoughtful adjustments can help reduce the strain on your kidneys and potentially slow down any decline in filtration efficiency. The American Heart Association often emphasizes how a heart-healthy diet also benefits kidney health, underscoring the interconnectedness of these vital systems.

These dietary considerations are not about deprivation but about making informed, sustainable choices that support your body's long-term health.

  • **Reduce Sodium Intake:** Limit processed foods, canned soups, and salty snacks to help manage blood pressure, which is key for kidney health.
  • **Opt for Lean Proteins:** Choose smaller portions of lean meats, poultry, fish, and plant-based proteins to avoid overwhelming the kidneys.
  • **Increase Fruits and Vegetables:** Incorporate a wide variety of colorful fruits and vegetables, which are rich in antioxidants and support overall well-being.
  • **Stay Hydrated Thoughtfully:** Drink enough water throughout the day, but always discuss your specific fluid needs with a healthcare provider, as individual requirements can vary based on your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² and other health factors.
Foods that support kidney health Berries Antioxidants Cauliflower Low potassium Fish Omega-3s Olive Oil Anti-inflammatory Stay hydrated and limit sodium to support kidney function
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.

eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² in Men, Women, Elderly, and Kids

The interpretation of an eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² can subtly differ across various demographic groups, though the fundamental message of paying attention to kidney health remains constant.

It's important to remember that eGFR is an *estimated* rate, and the formulas used to calculate it often take into account factors like age, sex, and ethnicity. For instance, as people age, a gradual decline in kidney function is considered a natural part of the aging process.

So, an eGFR of 56 mL/min/1.73m² in an older adult might be viewed in a different light than the same value in a younger individual, where it might suggest a more significant deviation from expected function.

Similarly, there can be slight variations in average eGFR levels between men and women, often due to differences in muscle mass, which influences the creatinine levels used in the calculation.

However, for a reading of 56 mL/min/1.73m², regardless of your specific demographic, it generally points towards a need for monitoring and possibly proactive steps to preserve kidney function. The National Institutes of Health (NIH) highlights that understanding these demographic nuances helps healthcare providers give the most personalized interpretation and guidance, focusing on the individual's long-term kidney health trajectory.

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 eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

The medications you take, both prescription and over-the-counter, can significantly influence your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² over time. Some medications are specifically designed to support kidney function or manage conditions like high blood pressure and diabetes, which are major contributors to kidney health.

On the other hand, certain drugs can put additional strain on the kidneys, potentially affecting their long-term filtration capacity. It's crucial to have an open discussion with your healthcare provider about all your medications, as they can help assess their potential impact on your kidney health trajectory.

The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines often underscore the importance of medication review in managing chronic kidney disease and preserving eGFR.

  • **Discuss all medications:** Inform your doctor about all drugs, including supplements and herbal remedies, to avoid potential kidney-related side effects.
  • **Manage blood pressure and diabetes:** Adhere to prescribed medications for conditions like hypertension and diabetes, as uncontrolled levels can worsen kidney function.
  • **Avoid certain pain relievers:** Be cautious with NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen, especially with regular use, as they can sometimes affect kidney function.
  • **Regular medication review:** Periodically review your medication list with your healthcare provider to ensure they are still appropriate for your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² and overall health goals.
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 eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

Given an eGFR (Estimated Glomerular Filtration Rate) of 56 mL/min/1.73m², understanding when to repeat the test is a key part of monitoring your long-term kidney health. This specific value often prompts healthcare providers to recommend follow-up testing, not out of immediate alarm, but as a proactive measure to observe the trajectory of your kidney function.

The exact timing for repeating the eGFR test will depend on various factors, including your overall health, the presence of other conditions like high blood pressure or diabetes, and your healthcare provider's clinical judgment.

For some, a retest might be advised within a few months to confirm the stability or progression of the eGFR. For others, particularly if there are other risk factors present, more frequent monitoring might be recommended to track trends over the long term.

The National Kidney Foundation emphasizes that consistent monitoring allows both you and your doctor to identify any significant changes promptly and adjust your care plan if needed, helping to preserve your kidney function for years to come. It’s about creating a clear picture of your kidney's journey.

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.

eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² — Frequently Asked Questions

An eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² indicates a mild reduction in kidney function. While it might not always be fully "reversible" back to a higher range, adopting a kidney-friendly lifestyle, managing underlying health conditions like blood pressure and diabetes, and working closely with your healthcare provider can often help stabilize the eGFR and prevent further decline over the long term.

The goal is often to maintain the current function and protect your kidneys for the future.

With an eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m², you might not experience significant symptoms or changes in your daily life right away. This level is generally considered mild, and many people live active lives with this kidney function.

However, it serves as an important signal to focus on preventative measures. It means becoming more mindful of your diet, hydration, exercise, and medication use to support your kidney health proactively and ensure your long-term well-being without immediate drastic changes.

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.

The way an eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² changes over several years can vary greatly among individuals. Without intervention, there's a possibility of a gradual, subtle decline in kidney function over time.

However, with consistent attention to lifestyle, careful management of blood pressure and blood sugar, and regular medical check-ups, it's often possible to slow down this progression and maintain kidney function at a stable level for many years. Regular monitoring helps to understand your personal trajectory.

When to See a Doctor About eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m²

Receiving an eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² is a clear indicator that initiating or continuing a dialogue with your healthcare provider about your kidney health is a vital step.

While this specific value doesn't typically signal an emergency, it's a prompt for proactive engagement in your long-term health journey. You should definitely schedule a consultation if you haven't discussed this result with your doctor already, especially to understand what this number means specifically for you.

Beyond the initial discussion, it's important to see your doctor if you develop any new symptoms that could potentially relate to kidney function, such as persistent swelling in your ankles or feet, unexplained fatigue, changes in urination patterns, or muscle cramps.

Regular follow-up appointments are also essential to monitor your eGFR (Estimated Glomerular Filtration Rate) 56 mL/min/1.73m² over time, track any trends, and ensure your management plan is effectively supporting your kidney health and overall well-being.

The Centers for Disease Control and Prevention (CDC) emphasizes that regular check-ups and open communication with your healthcare team are fundamental to managing conditions like mild kidney function changes effectively.

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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.
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