Chronic Kidney Disease (CKD) is a serious health issue, particularly among older adults. 1 in 7 adults in the US have it and it often arises from underlying conditions like hypertension, diabetes, and obesity.
Managing these conditions early on is crucial for preventing CKD and its associated complications. A new study published in JAMA Network Open sheds light on the role of protein intake in older adults with CKD, challenging some long-held beliefs about protein restriction.
Key Findings of the Study
The study analyzed data from over 8,500 adults aged 60 and older with mild to moderate CKD. Researchers found that higher protein intake was linked to lower all-cause mortality, regardless of whether the protein was derived from animal or plant sources. Interestingly, the reduction in mortality was even greater among older adults without CKD.
Protein Intake and Mortality
- Higher Total Protein Intake: Adults with CKD who consumed more protein had a lower risk of death over a 10-year period.
- Plant vs. Animal Protein: Both plant and animal protein showed similar benefits, suggesting that the overall quantity of protein matters more than the source.
- Younger vs. Older Adults: The benefits of protein intake were consistent across age groups, whether individuals were under or over 75 years old.
- CKD vs. Non-CKD: The inverse association between protein intake and mortality was stronger among those without CKD, indicating that while higher protein intake is beneficial for older adults with CKD, it is even more advantageous for those without the disease.
Why Is This Important?
Traditionally, older adults with CKD have been advised to limit protein intake to slow disease progression. However, this study suggests that moderate to higher protein consumption may be beneficial, particularly in those with mild to moderate CKD. It’s essential to strike a balance between maintaining adequate protein for muscle and bone health and not overburdening the kidneys.
Practical Takeaways
- Prevention Matters: CKD often results from chronic conditions like hypertension, diabetes, and obesity. Managing these conditions through diet and lifestyle can help prevent CKD.
- Protein for Longevity: Including moderate amounts of both animal and plant-based proteins can support overall health and reduce mortality risk, even in those with early-stage CKD.
- Dietary Balance: While protein is beneficial, it’s still important to tailor intake based on individual health conditions and stages of CKD. Consulting with a healthcare provider or dietitian can help personalize dietary choices.
Addressing the Root Causes: Hypertension, Diabetes, and Obesity
CKD does not develop in isolation. The most common causes are hypertension, diabetes, and obesity. Addressing these conditions early through lifestyle changes, such as eating a balanced diet rich in whole foods, maintaining a healthy weight, and incorporating regular physical activity, can significantly reduce the risk of CKD. Nutrition plays a vital role in managing blood pressure, blood glucose levels, and weight, which are all critical in the prevention of CKD.
Final Thoughts
This study challenges the notion that protein restriction is universally beneficial for older adults with CKD. Instead, it highlights the potential benefits of maintaining a higher protein intake, especially from diverse sources, to support overall health and longevity. If you or a loved one is managing CKD, it may be worth discussing dietary protein with your doctor.
For more details, check out the full study here: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2822055
