eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²: Is That Normal?

Written by

Ernestas K.

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

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

Is eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² Low, Normal, or High?

eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² is a value that might be considered optimal or at the higher end of the healthy range for kidney function. This excellent reading suggests your kidneys are working with remarkable efficiency, filtering waste products from your body very effectively. For your long-term health, this level often indicates a strong foundation, pointing to robust kidney capacity over many years. Maintaining such a high eGFR trajectory often aligns with a proactive approach to overall well-being. What does this exceptional eGFR signify for your future health journey and how can you help sustain this impressive performance?

Hidden Risk of eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

Even with an excellent eGFR of 105 mL/min/1.73m², it is valuable to understand that kidney function can subtly change over time, influenced by various health and lifestyle factors. While this number reflects kidneys working very efficiently now, it is not a guarantee against future challenges. The National Kidney Foundation emphasizes that even those with optimal kidney function can benefit from proactive health management to maintain this strong performance and prevent potential long-term declines. Being aware of factors that could stress your kidneys down the road is a key part of safeguarding this high eGFR for years to come.

What Does a eGFR (Estimated Glomerular Filtration Rate) Level of 105 mL/min/1.73m² Mean?

Imagine your kidneys as a pair of highly efficient, complex water filtration systems for your body. The eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² is like having a brand-new, top-of-the-line filter working at peak performance. It means your kidneys are exceptionally good at clearing waste products and excess fluid from your blood, allowing roughly 105 milliliters of blood to be "cleaned" every minute. This measurement is not a direct reading but rather an estimation based on factors like age, gender, and creatinine levels in your blood, which is a waste product from muscle metabolism. A value of 105 mL/min/1.73m² suggests a robust and healthy filtration process, indicating that your kidneys are operating at an optimal level, perhaps even above what is considered average for many healthy adults. For your long-term health, this is a very encouraging sign, as maintaining such a high filtration rate can contribute significantly to overall well-being and reduce the risk of future health complications often associated with declining kidney function. It suggests a strong foundation for managing your body's internal balance over the years. This optimal function helps ensure your body remains free from accumulated toxins, supporting energy levels and overall vitality.

Lifestyle Changes for eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

Maintaining an eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² over the long term involves nurturing overall health, beyond just what you eat. Regular physical activity plays a significant role in supporting kidney function. The World Health Organization (WHO) emphasizes the importance of moderate exercise, like brisk walking, swimming, or cycling, for at least 150 minutes per week. This helps maintain a healthy weight, supports cardiovascular health, and contributes to stable blood pressure, all of which indirectly protect your kidneys' filtering ability. Adequate hydration is also key; ensuring you drink enough water throughout the day helps your kidneys perform their job of filtering waste efficiently. Aiming for 6-8 glasses of water daily, unless advised otherwise by a healthcare professional, can make a difference. Avoiding smoking and limiting alcohol intake are also crucial steps. Both habits can put stress on your body's systems, including your kidneys, potentially impacting their long-term performance. Getting consistent, good-quality sleep, typically 7-9 hours per night for adults, also supports overall physiological balance, which is beneficial for maintaining a high eGFR trajectory through the years. These habits are foundational to safeguarding your excellent kidney function for the future, contributing to overall health and vitality.

Diet Changes for eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

For someone with an eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m², dietary choices become about maintaining this excellent level of kidney health for years to come. The emphasis shifts from restrictive diets to a balanced, kidney-friendly eating pattern that supports overall well-being and prevents factors that might challenge kidney function later in life. The National Institutes of Health (NIH) often highlights how a heart-healthy diet also largely benefits kidney health, creating a protective shield for your high eGFR over the long term.

eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² in Men, Women, Elderly, and Kids

An eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² can hold different nuances across various groups, though generally it represents excellent kidney function. For younger adults, both men and women, this value is highly encouraging, signifying robust kidney health. It's often close to the peak function expected in early adulthood, suggesting a strong baseline for kidney health over many decades. As people age, a gradual decline in eGFR is considered a natural part of the aging process. Therefore, an eGFR of 105 mL/min/1.73m² in an older adult, for instance, someone in their 70s or 80s, is quite remarkable and points to exceptionally well-preserved kidney function for their age. The Centers for Disease Control and Prevention (CDC) notes that while some decline is typical, maintaining a high eGFR like this into older age is a significant indicator of overall health. In children, an eGFR is often calculated differently and interpreted based on growth and development, but a result of 105 mL/min/1.73m² would typically be seen as a very healthy, optimal function, indicating kidneys are developing and working properly for their age and size. This high value across all demographics suggests a promising long-term trajectory for kidney health, underscoring the importance of continuing healthy habits to sustain it.

Medicine Effects on eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

While an eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² indicates excellent kidney function, it's still important to understand the relationship between medications and kidney health over time. Many commonly used medicines are processed and eliminated by the kidneys, and long-term use of certain drugs, even at standard doses, can influence kidney performance. The Mayo Clinic often educates patients on the importance of discussing all medications, including over-the-counter drugs and supplements, with their healthcare provider to ensure kidney safety, especially when planning for long-term health and maintaining your impressive eGFR.

When to Retest eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

Given an eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m², which indicates optimal kidney function, the urgency for repeat testing is generally low compared to lower values. For most individuals with this excellent reading and no other underlying health concerns, a healthcare provider might suggest repeating the test as part of routine annual check-ups or general health screenings. The National Kidney Foundation recommends that people at higher risk for kidney disease, such as those with diabetes, high blood pressure, or a family history of kidney problems, generally have their eGFR checked more regularly, perhaps yearly, regardless of their current high value. Even with an optimal eGFR of 105 mL/min/1.73m², consistent monitoring allows for tracking your long-term kidney health trajectory. It helps establish a personal baseline and ensures that any subtle changes over years can be noticed and addressed proactively, supporting the sustained high performance of your kidneys. This approach focuses on maintaining excellent health rather than reacting to a decline, giving you peace of mind about your kidney function.

eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m² — Frequently Asked Questions

When to See a Doctor About eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m²

With an eGFR (Estimated Glomerular Filtration Rate) 105 mL/min/1.73m², which reflects excellent kidney function, there isn't an immediate cause for concern that would prompt an urgent visit to a doctor solely based on this number. However, seeing your healthcare provider regularly is always beneficial for overall health management and to discuss your long-term health trajectory. You should certainly consult your doctor if you experience any new or unusual symptoms, even with an optimal eGFR, such as unexplained fatigue, swelling in your hands or feet, changes in urination patterns, or persistent muscle cramps. These could be indicators of other health conditions that might indirectly affect kidney function over time. Also, if you are managing other chronic conditions like high blood pressure or diabetes, or if you are considering starting new medications or supplements, an ongoing dialogue with your doctor ensures these factors are well-managed and won't negatively impact your excellent kidney health in the long run. The American Heart Association (AHA) highlights the interconnectedness of heart and kidney health, underscoring the importance of comprehensive care. Your healthcare provider can help you develop a personalized plan to maintain your impressive eGFR for many years, acting as your health partner.