Chronic Kidney Disease in Women: The Silent Health Risk Too Often Missed

August 19, 2026

Contributing Authors: Team TRILITY / ACEND

Chronic kidney disease can quietly develop for years without producing obvious symptoms. That is one reason kidney health deserves more attention long before someone reaches the point of dialysis or kidney failure.

But emerging research is revealing another important problem: chronic kidney disease in women may be especially easy to overlook.

Women frequently meet criteria for chronic kidney disease (CKD), particularly in earlier stages, yet research suggests they are less likely than men with similar kidney-function abnormalities to receive a CKD diagnosis, kidney monitoring, nephrology referral, or some guideline-directed treatments. At the same time, women have historically been underrepresented in many of the clinical trials that determine how kidney disease is treated.

That does not mean kidney disease is biologically more aggressive in women. In fact, studies generally find that men with established CKD progress toward kidney failure more rapidly. Rather, the emerging picture is more complicated: women may have substantial kidney disease burden while receiving less attention during the stages when earlier detection and risk reduction could make the greatest difference.

What Is Chronic Kidney Disease?

The kidneys do far more than simply produce urine. They continuously filter the blood, remove metabolic waste, regulate fluid and electrolyte balance, participate in blood-pressure regulation, help control acid-base balance, stimulate red-blood-cell production, and contribute to vitamin D and mineral metabolism.

Chronic kidney disease occurs when abnormalities of kidney structure or function persist for at least three months and have implications for health. Two of the most important clinical measurements are estimated glomerular filtration rate (eGFR), which estimates how effectively the kidneys filter blood, and urine albumin-to-creatinine ratio (uACR), which detects abnormal leakage of albumin into the urine.

Importantly, these tests provide different information. Someone can have a relatively preserved eGFR while albumin is already appearing in the urine, or reduced filtration with relatively little albuminuria. Current KDIGO guidance therefore recommends evaluating people at risk for CKD using both kidney filtration and urine albumin measurements, rather than relying on serum creatinine alone.

Why Chronic Kidney Disease Can Be So Easy to Miss

Early CKD usually does not announce itself.

A person can feel perfectly healthy while kidney function gradually declines. Symptoms such as swelling, significant fatigue, appetite changes, itching, nausea, altered urination, shortness of breath, or cognitive difficulties may not become noticeable until kidney disease is substantially more advanced.

That makes CKD fundamentally different from conditions that reliably produce an early warning symptom.

For many people, the first sign of kidney disease is a laboratory result.

Unfortunately, research suggests that even abnormal laboratory findings do not always translate into recognition.

A large Swedish study involving 227,847 people with probable CKD found significant differences between women and men in the recognition and management of kidney disease. Women had lower odds of receiving a CKD diagnostic code and were less likely to undergo monitoring, receive nephrologist care, and receive certain recommended treatments despite having evidence of impaired kidney function.

That makes routine screening particularly important for women with established kidney risk factors.

Women May Be Underrepresented in the Research Too

Another concern is the evidence base doctors use to make treatment decisions.

A review of 192 CKD clinical trials conducted between 1995 and 2022, representing more than 147,000 participants, found that women represented approximately 45% of trial participants even though women constitute a larger proportion of the global CKD population. Only a minority of the trials reported treatment effectiveness separately by sex, and sex-specific reporting of adverse events was particularly limited.

A major 2026 Lancet review examining sex and kidney health highlights why this matters. Biological differences involving hormones, kidney physiology, body composition, pharmacokinetics, pregnancy, autoimmune disease, and other factors may influence kidney disease and responses to treatment. Gender-related social and economic factors can simultaneously influence access to diagnosis, specialist care, transplantation, and other healthcare services.

Medicine is increasingly recognizing that simply enrolling women in studies is not enough. Researchers must also determine whether treatments affect women and men differently.

Pregnancy History May Provide an Important Kidney Health Clue

One of the most overlooked kidney-health indicators for women may occur decades before a CKD diagnosis: pregnancy complications.

Preeclampsia involves new-onset hypertension during pregnancy accompanied by signs of organ dysfunction and can affect the kidneys.

Research increasingly suggests that preeclampsia should not always be viewed as an event that simply ends when pregnancy ends.

In an observational cohort study involving 27,800 adults, women whose pregnancies had been complicated by preeclampsia subsequently demonstrated increased risks of chronic hypertension, reduced eGFR, and albuminuria compared with women without preeclampsia. Postpartum kidney testing was also relatively uncommon.

A history of preeclampsia or pregnancy-related hypertension should therefore become part of the long-term conversation about cardiovascular and kidney health.

If you experienced preeclampsia 10, 20, or even 30 years ago, that information may still be relevant to your physician.

The Kidney–Metabolic Health Connection

Kidney disease rarely exists in isolation.

Two of the most important drivers of CKD are high blood pressure and diabetes, while obesity, cardiovascular disease, smoking, certain medications, genetic disorders, autoimmune diseases, previous acute kidney injury, and family history can further influence risk.

This is why kidney health should increasingly be viewed as part of the broader cardiovascular-kidney-metabolic system.

High blood pressure can damage the small blood vessels responsible for filtration within the kidneys. Declining kidney function can then make blood-pressure regulation more difficult, creating a harmful feedback loop.

Similarly, chronically elevated blood glucose can damage the glomeruli—the microscopic filtering structures within the kidneys—and diabetic kidney disease remains a major cause of CKD.

The practical message is important: strategies that improve metabolic health frequently support kidney health as well.

Diet Matters, but Kidney Nutrition Is Not One-Size-Fits-All

For people trying to prevent metabolic and kidney disease, the first dietary step does not need to be complicated.

Start by reducing the proportion of the diet coming from ultra-processed foods.

A prospective study published in the American Journal of Kidney Diseases followed 14,679 adults without CKD at baseline for a median of 24 years. People in the highest quartile of ultra-processed food consumption had a 24% higher adjusted risk of developing CKD than those in the lowest quartile. Replacing one daily serving of ultra-processed food with minimally processed food was associated with lower CKD risk.

This does not prove that a specific processed-food ingredient causes kidney disease. Ultra-processed dietary patterns are also frequently associated with greater sodium intake, poorer overall diet quality, metabolic dysfunction, obesity, hypertension, and diabetes.

Nevertheless, the direction is consistent with broader evidence supporting diets centered around minimally processed foods.

For people without diagnosed CKD, that generally means emphasizing vegetables, fruits, legumes, appropriately selected whole grains, nuts and seeds, healthy fats, and high-quality protein while reducing added sugars, refined foods, heavily processed meats, and other ultra-processed products.

Once CKD is present, however, nutrition becomes much more individualized.

People with kidney disease should not automatically increase potassium, reduce protein, restrict phosphorus, aggressively increase water intake, or begin vitamin or mineral supplements based on generalized internet recommendations. Appropriate amounts of potassium, sodium, phosphorus, protein, magnesium, calcium, fluids, and other nutrients depend on CKD stage, laboratory values, medications, blood pressure, diabetes status, dialysis status, and other medical conditions.

A renal dietitian and treating physician can individualize those decisions.

Five Practical Ways to Protect Kidney Health

For people without established advanced kidney disease, several foundational strategies have strong overlap with cardiovascular and metabolic prevention.

1. Know your blood pressure.
Hypertension is both a major cause and potential consequence of CKD. A blood-pressure reading at an annual physical may not tell the entire story, particularly if readings vary considerably.

2. Manage blood glucose and metabolic health.
People with diabetes or insulin resistance should take kidney screening seriously, even when they feel well.

3. Build meals around minimally processed foods.
The goal is not dietary perfection. Replacing ultra-processed foods with whole or minimally processed alternatives is a practical place to begin. Prospective evidence has associated greater ultra-processed food intake with increased risk of incident CKD.

4. Exercise consistently.
Regular physical activity supports blood-pressure control, insulin sensitivity, cardiovascular health, body composition, and metabolic function—all factors that can indirectly influence kidney risk.

5. Avoid unnecessary kidney stressors.
Certain medications, including frequent or excessive use of nonsteroidal anti-inflammatory drugs such as ibuprofen and naproxen, can present particular concerns for susceptible individuals. Medication and supplement use should be reviewed with a healthcare professional when kidney function is impaired.

The Two Kidney Tests Worth Knowing

One of the most actionable messages from current kidney research is remarkably simple.

If you have meaningful risk factors for CKD, ask your healthcare professional whether you should have:

1. eGFR — estimated glomerular filtration rate
Usually calculated from a blood creatinine measurement and other variables, eGFR estimates kidney filtration capacity.

2. uACR — urine albumin-to-creatinine ratio
This urine test detects abnormal albumin leakage, which may identify kidney damage even before eGFR becomes substantially reduced.

KDIGO specifically emphasizes the combination of GFR assessment and urine albumin testing for evaluating people at risk for CKD.

One abnormal test alone does not necessarily establish chronic kidney disease. Results often need to be repeated to determine whether an abnormality persists for at least three months, and clinicians interpret the numbers within the context of age, medical history, medications, and other findings.

Where ACEND Fits—and Where It Does Not

At ACEND, we frequently discuss inflammation, metabolic dysfunction, dietary quality, cardiovascular health, and systems biology because human physiology does not operate as a collection of isolated organs.

Kidney health is an excellent example.

Metabolic dysfunction, vascular health, inflammation, oxidative stress, blood-pressure regulation, dietary patterns, and kidney function intersect in complex ways. Improving the underlying lifestyle environment—better food, regular physical activity, appropriate body composition, restorative sleep, smoking avoidance, and good metabolic control—can support multiple systems simultaneously.

However, ACEND-CI is not a treatment for chronic kidney disease, and it should not be represented as one.

This distinction is especially important because people with impaired kidney function may process minerals, nutrients, medications, and bioactive compounds differently. ACEND-CI and other medical foods or nutritional products should therefore be reviewed with a physician or renal healthcare professional before use by someone with diagnosed CKD.

The goal should never be to substitute a supplement or medical food for kidney evaluation, blood-pressure management, diabetes treatment, appropriate medications, or specialist care.

Instead, nutritional strategies should complement—not replace—evidence-based medical management.

Kidney Health Should Become Part of Preventive Health

Perhaps the most important lesson from the emerging research on women and kidney disease is that waiting for symptoms is not an effective screening strategy.

Women may be especially vulnerable to having CKD overlooked during its earlier stages, despite evidence of reduced kidney function. Pregnancy history, blood pressure, diabetes, metabolic health, medications, family history, and previous kidney injury can all provide clues that screening may be appropriate.

And screening does not require an exotic diagnostic procedure.

Two relatively straightforward measurements—eGFR and urine albumin-to-creatinine ratio—can provide valuable insight into kidney filtration and kidney damage.

Therefore, our suggestion is simple: treat kidney function as another important biomarker of long-term metabolic and cardiovascular health. Know your numbers, understand your personal risk factors, prioritize healthy living before disease develops, and address abnormalities early rather than waiting for the kidneys to produce symptoms.

For millions of people—and potentially many women whose kidney disease might otherwise remain unnoticed—that earlier conversation could matter enormously.

References

Lees JS, Stevens KI, Kotwal SS, Bruchfeld A, Levin A. Advances in understanding the impact of sex on kidney health and disease. The Lancet. 2026;407(10546):2429-2443. DOI: 10.1016/S0140-6736(26)00654-9
Swartling O, et al. Sex Differences in the Recognition, Monitoring, and Management of CKD in Health Care.Journal of the American Society of Nephrology. 2022. PubMed
Pinho-Gomes AC, et al. Women’s representation in clinical trials of patients with chronic kidney disease. Clinical Kidney Journal. 2023;16(9):1457-1464. PubMed
Carrero JJ, Hecking M, Chesnaye NC, Jager KJ. Sex and gender disparities in the epidemiology and outcomes of chronic kidney disease. Nature Reviews Nephrology. 2018. PubMed
Srialluri N, et al. Preeclampsia and Long-term Kidney Outcomes: An Observational Cohort Study. American Journal of Kidney Diseases. 2023. PubMed
Du S, Kim H, Crews DC, White K, Rebholz CM. Association Between Ultraprocessed Food Consumption and Risk of Incident CKD: A Prospective Cohort Study. American Journal of Kidney Diseases. 2022;80(5):589-598.e1. PubMed
Kidney Disease: Improving Global Outcomes (KDIGO). KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. Kidney International. 2024. KDIGO Guideline