Managing Kidney Health: Dietary Changes and Blood Pressure Guidelines

Kidney and dietary habit changes issues?

Hello, doctor: About a year ago, my kidney function was abnormal during a health check-up, with a creatinine level of 1.5.
After follow-up with a nephrologist, it was reduced to 1.2.
The doctor advised me to monitor my blood pressure at home and engage in regular exercise without needing to make significant dietary adjustments.
Is this correct? There are various standards for hypertension online, and my blood pressure is around 100 to 120.
What is the medical standard for this? One thing that has been troubling me is that my eating habits have drastically changed; I have shifted from loving meat to enjoying vegetables and prefer a much lighter diet.
I no longer like many foods and seasonings that I used to enjoy, which often leaves my family unsure of what to cook.
What could be causing this phenomenon? Is there anything I should pay attention to? Thank you.

Qi, 20~29 year old female. Ask Date: 2019/10/23

Dr. Liao Yaopan reply Family Medicine

Hello,
1.
The diagnostic criteria for hypertension have indeed varied across different decades and expert opinions from various associations.
Currently, in clinical practice, adults are generally considered to have high blood pressure if it exceeds 140/90 mmHg, which suggests the need for therapeutic intervention.
2.
Creatinine is an indicator of kidney function, and in clinical practice, the glomerular filtration rate (GFR) is used for a more objective assessment.
If there are concerns, it is advisable to follow up with a nephrologist.
3.
Unless there are specific restrictions, a balanced intake of various nutrients is the most important.
Regular exercise habits and diet are equally important.
Changhua Hospital cares about you.

Reply Date: 2019/10/23

More Info

Managing kidney health, particularly in the context of dietary changes and blood pressure guidelines, is a multifaceted issue that requires careful consideration of various factors. Based on your situation, it seems you have experienced some fluctuations in kidney function, as indicated by your creatinine levels, and you are also monitoring your blood pressure.
Firstly, regarding your kidney function, a creatinine level of 1.5 mg/dL is slightly elevated, but a subsequent level of 1.2 mg/dL suggests some improvement. It's important to continue monitoring your kidney function through regular check-ups with your nephrologist, as they can provide tailored advice based on your specific health status. The recommendation from your doctor to focus on blood pressure management and regular exercise without making drastic dietary changes is generally sound, especially if you are not experiencing any significant symptoms or complications. However, maintaining a balanced diet is crucial for overall health, particularly for kidney health.

When it comes to blood pressure, the current clinical guidelines suggest that normal blood pressure for adults is typically around 120/80 mmHg. Blood pressure readings between 100-120 mmHg systolic are generally considered acceptable, but it is essential to monitor for any significant changes. If your blood pressure consistently falls below 90/60 mmHg, it may be worth discussing with your healthcare provider, as this could indicate hypotension.

Your observation about a significant change in your dietary preferences—shifting from a meat-heavy diet to a preference for vegetables and lighter foods—could be attributed to several factors. Changes in taste preferences can occur due to various reasons, including hormonal changes, health concerns, or even psychological factors. It's also possible that your body is responding to your kidney health status, prompting a natural inclination towards healthier food choices. This shift can be beneficial, as a diet rich in vegetables, fruits, and whole grains can support kidney health and overall well-being.

However, this change can also create challenges for meal planning, especially if family members are accustomed to different dietary habits. To address this, consider involving your family in the meal planning process. Explore new recipes that incorporate your new preferences while still catering to everyone's tastes. Focus on balanced meals that include a variety of nutrients, such as lean proteins (which can include plant-based sources), healthy fats, and complex carbohydrates.

In terms of dietary considerations for kidney health, it is generally recommended to limit sodium intake, manage protein consumption, and monitor potassium and phosphorus levels, especially if kidney function is compromised. While your doctor may not have advised strict dietary restrictions, it is still wise to be mindful of these nutrients. For instance, reducing processed foods and opting for fresh ingredients can help manage sodium intake.
In conclusion, while your doctor's advice to focus on blood pressure and exercise is appropriate, maintaining a balanced diet is equally important. Continue to monitor your kidney function and blood pressure, and don't hesitate to reach out to your healthcare provider or a registered dietitian for personalized dietary guidance. Your recent dietary changes may be beneficial, but ensuring that your meals are nutritious and enjoyable for the whole family will help support your health journey.

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