Did you know that diabetes is the leading cause of chronic kidney disease (CKD) and that anemia is a common complication of chronic kidney disease? According to the National Kidney Foundation (NKF), 1 in 3 adults with diabetes also has kidney disease.
At the same time, patients with chronic kidney disease experience reduced production of red blood cells, leading to anemia in CKD, a condition that causes extreme fatigue and worsens kidney function over time.
If you’re feeling tired, noticing unusual blood sugar spikes, or dealing with anemia, it’s crucial to understand how these issues are connected. Early detection and proper diabetes care can prevent kidney failure and improve your overall health.
Your kidneys perform several essential functions, including:
When blood sugar levels remain high (due to type 1 or type 2 diabetes), it damages the small blood vessels in the kidneys, contributing to diabetic kidney disease. This condition, called diabetic nephropathy, leads to kidney damage and reduces the kidneys’ ability to produce EPO (NIDDK).
Without enough EPO, your body doesn’t make sufficient red blood cells, leading to anemia in patients with diabetes, which worsens kidney health over time.
Diabetes is the #1 cause of chronic kidney disease and kidney failure in the U.S. (CDC). When blood glucose remains high for extended periods, it causes:
Over time, poorly controlled diabetes forces the kidneys to work harder, leading to progressive damage and, eventually, end-stage renal disease (ESRD). The National Kidney Foundation (NKF) reports that diabetes accounts for 50% of all kidney failure cases in the U.S.
Anemia in chronic kidney disease affects nearly 50% of CKD patients, especially in advanced stages (NIDDK). When the kidneys fail to produce enough erythropoietin (EPO), the bone marrow slows down red blood cell production.
This leads to:
Anemia in patients with type 2 diabetes and CKD can also increase the risk of heart disease, making diabetes care even more difficult.
Certain individuals face a higher risk of kidney disease and anemia due to diabetes:
Early detection through routine complete blood count (CBC) tests and kidney function tests can help slow the loss of kidney function.
If kidney disease progresses, options include:
Ignoring high blood sugar levels, anemia, and CKD symptoms can lead to kidney failure, requiring dialysis or a kidney transplant.
By taking control of your health today, you can prevent complications and improve your quality of life.
Kidney disease can affect how your body uses insulin, making blood sugar harder to control, especially in advanced stages or in people with diabetes.
Diabetes can lead to kidney damage, reducing erythropoietin production, which decreases red blood cell count and causes anemia over time.
Anemia commonly begins in stage 3 CKD and worsens in later stages due to reduced erythropoietin and iron deficiency.
Progression from stage 4 to stage 5 may take months to years, depending on health, blood pressure, diabetes control, and treatment adherence.
Early signs include fatigue, swelling in the ankles or face, and frequent or foamy urination, especially at night.
Information contained in this blog is for informational or educational purposes only and does not substitute professional medical advice or consultations with healthcare professionals. The content is not intended to be comprehensive or exhaustive, and it does not apply to any specific individual’s medical condition. Always refer to the personalized information given to you by your doctor, or contact us directly.
Dr. Allen Kaufman is the Chief Medical Officer and Senior VP for Clinical & Scientific Affairs at Dialyze Direct, with over four decades of experience in Nephrology. He began his career in 1980 and has held leadership roles including Chief of Nephrology & Hypertension at Beth Israel Medical Center (1998–2004), Chief of Dialysis at the Bronx VA Medical Center (1982–1990), and Chief of the Yorkville Dialysis Unit at Beth Israel and the Renal Research Institute (1990–2000). Dr. Kaufman has authored over 100 scientific publications and served as Principal or Co-Investigator on numerous NIH-funded research studies. A Fellow of the American College of Physicians, he is board-certified in Nephrology and Internal Medicine. He earned his medical degree from the University of Rochester and completed training at the Hospital of the University of Pennsylvania and Mount Sinai in New York. Dr. Kaufman is widely recognized with multiple “Best Doctor” and “Patients’ Choice” awards.