Kidney Health 101: What Supplements Are Good for Kidney Function

The Role and Importance of Kidneys in the Human Body

Kidneys are the body's natural filters. They are two bean-shaped organs that are located in your lower back, just below your rib cage. They are responsible for a number of important functions,¹ including:

• Filtering waste products from the blood: Your kidneys filter about 125 milliliters of blood per minute, removing waste products such as urea, creatinine, and uric acid.
• Maintaining fluid balance: Your kidneys help to regulate the amount of water in your body by producing urine.
• Balancing electrolytes: Your kidneys help to maintain the balance of electrolytes in your body, such as sodium, potassium, and chloride.
• Producing hormones: Your kidneys produce a number of hormones, including erythropoietin, which helps to produce red blood cells.

How Diet and Nutrition Influence Kidney Function

Your diet and nutrition play a major role in kidney health.²³ Eating a healthy diet can help to protect your kidneys from damage and improve their overall function.

What to Eat for Kidney Health

A healthy diet for kidney health includes plenty of fruits, vegetables, and whole grains. These foods are low in sodium and potassium, which are two minerals that can be harmful to the kidneys.

• Fruits and vegetables: Fruits and vegetables are a good source of vitamins, minerals, and antioxidants, which are all important for kidney health. Some good choices include berries, citrus fruits, leafy greens, and cruciferous vegetables.
• Whole grains: Whole grains are a good source of fiber, which can help to keep your kidneys healthy. Some good choices include brown rice, quinoa, and oats.

What to Avoid for Kidney Health

There are a few foods that you should avoid if you want to protect your kidney health.³ These include:

• Salt: Salt can raise blood pressure, which can damage the kidneys.
• Processed foods: Processed foods are often high in sodium and other unhealthy ingredients.
• Red meat: Red meat is high in protein, which can be hard for the kidneys to process.
• Sugary drinks: Sugary drinks can raise blood sugar levels, which can damage the kidneys.

Drinking Plenty of Fluids

Drinking plenty of fluids is also important for kidney health.²³ Fluids help to flush out waste products from the kidneys and keep them functioning properly.

Following a healthy diet and drinking plenty of fluids are two of the best things you can do to protect your kidney health. By making these simple changes, you can help to keep your kidneys healthy and functioning properly for years to come.

Common Causes of Decreased Kidney Function

Decreased kidney function occurs when your kidneys are not able to filter waste products from your blood as effectively as they should. This can lead to a buildup of waste products in your blood, which can cause a variety of health problems.

There are a number of things that can cause decreased kidney function,⁴ including:

• Diabetes: Diabetes is a chronic condition that can damage the kidneys over time.
• High blood pressure: High blood pressure can also damage the kidneys over time.
• Kidney stones: Kidney stones can block the flow of urine, which can damage the kidneys.
• Acute kidney injury: Acute kidney injury is a sudden decrease in kidney function that can be caused by a number of things, such as infection, dehydration, or medication side effects.
• Chronic kidney disease: Chronic kidney disease is a long-term condition that gradually damages the kidneys.

The Importance of Dietary Supplements in Supporting Kidney Function

Dietary supplements can help kidney function in a number of ways.⁵⁶ For example, cranberry juice can help to prevent UTIs by preventing bacteria from sticking to the walls of the urinary tract. D-mannose is a sugar that can help to prevent kidney stones by binding to calcium oxalate, a compound that can form kidney stones. Magnesium is an important mineral that helps to regulate blood pressure, which can protect the kidneys from damage. Fish oil is a good source of omega-3 fatty acids, which have been shown to reduce inflammation and protect the kidneys from damage.

What Supplements Are Good for Kidney Function?

In addition to a healthy diet and lifestyle, dietary supplements can also play a role in supporting kidney health.⁵⁶ There are a number of supplements that have been shown to be beneficial for kidney health.

Omega-3 Fatty Acids and Kidney Health

Omega-3 fatty acids are a type of essential fatty acid that the body cannot produce on its own. They can help to reduce inflammation, which can damage the kidneys.⁷ They can also help to protect the kidneys from damage caused by high blood pressure. Additionally, omega-3 fatty acids may help to improve kidney function in people with chronic kidney disease.

The Role of Probiotics in Kidney Function

Probiotics are live microorganisms that are similar to the "good" bacteria that naturally live in your gut. They can help to reduce inflammation, which can damage the kidneys. They can also help to protect the kidneys from damage caused by high blood pressure.⁸

Additionally, probiotics may help to improve kidney function in people with chronic kidney disease.

Benefits of Resveratrol for Kidneys

Resveratrol is a plant compound found in grapes, berries, and other foods. It has been shown to have a number of health benefits, including reducing inflammation and protecting the heart and brain.⁹

Resveratrol protects against kidney damage caused by high blood pressure and has been shown to improve kidney function in people with chronic kidney disease.⁹

How Alpha Lipoic Acid Helps the Kidneys

Alpha lipoic acid (ALA) is an antioxidant that is produced naturally in the body. It is also found in some foods, such as spinach, broccoli, and beef liver.

ALA has been shown to reduce inflammation in the kidneys, which could help to protect them from damage, and has been found to protect the kidneys from damage caused by high blood pressure.¹⁰

When and How to Take These Supplements for Optimal Benefits?

Supplements can be a helpful way to support kidney health, but it is important to take them correctly to get the most benefit.⁵⁶ Here are some tips on when and how to take supplements for optimal benefits:

• Take them with food. This will help to reduce the risk of stomach upset, which is a common side effect of some supplements.
• Take them consistently. Taking them regularly will help to ensure that you are getting the most benefit from them.
• Talk to your doctor. If you have any underlying health conditions, it is important to talk to your doctor before taking any supplements.

Here are some additional tips for taking supplements for optimal benefits:

• Choose high-quality supplements. When choosing supplements, it is important to choose high-quality brands that have been tested for purity and potency.
• Store supplements properly. Supplements should be stored in a cool, dry place away from direct sunlight.
• Be aware of potential side effects. Some supplements can have side effects, so it is important to be aware of them before taking them.

Are Kidney Supplements Safe for Everyone?

Each individual's kidney health is unique, and what works for one person may not be suitable for another. ¹¹ When it comes to kidney health, many people wonder if kidney supplements are a safe and effective option for supporting their well-being.

Here are some things to consider when taking kidney supplements:

• Your health history: If you have any underlying health conditions, such as kidney disease, it is important to talk to your doctor before taking any supplements.
• The dosage: It is important to  follow the directions on the supplement label or to talk to your doctor about the best dosage for you.
• The quality of the supplement: It is important to choose high-quality supplements that have been tested for purity and potency.
• Potential side effects: Some supplements can have side effects, so it is important to be aware of them before taking them.

Possible Side Effects and Interactions of Kidney Supplements

As with any medication or supplement, there is always the potential for side effects and interactions.¹¹ It is important to talk to your doctor before taking any supplements, especially if you have any underlying health conditions.

Some of the most common side effects of kidney supplements include:

• Nausea
• Vomiting
• Diarrhea
• Headache
• Stomach upset
• Allergic reactions

Some kidney supplements can interact with certain medications, so it is important to talk to your doctor before taking them if you are taking any medications.

The Importance of Consulting a Healthcare Professional Before Starting a Supplement Regimen

Supplements can be a helpful way to support your health, but it's important to talk to your healthcare professional before starting any new regimen. This is especially true if you have any underlying health conditions or are taking medications.

Here are some of the reasons why it's important to consult with a healthcare professional before starting a supplement regimen:

• To make sure the supplements are safe for you. Some supplements can interact with medications or have other side effects. Your healthcare professional can help you assess your individual risk and make sure the supplements you choose are safe for you.
• To get the right dose. The amount of a supplement that's right for one person may not be right for another. Your healthcare professional can help you determine the right dose for you.
• To get advice on how to take the supplements. Some supplements need to be taken with food or at certain times of the day. Your healthcare professional can give you specific instructions on how to take the supplements you choose.

Some additional points to consider when discussing supplements with your healthcare professional are your medical history, lifestyle, and goals.

Essential Vitamins and Minerals for Healthy Kidney Function

Taking care of our kidneys is vital for overall well-being, as these remarkable organs play a crucial role in filtering waste and toxins from our bodies. One way to support their optimal functioning is by ensuring we provide them with the right nutrients.

Benefits of Vitamin B for the Kidneys

Vitamin B is a group of water-soluble vitamins that plays a vital role in supporting kidney health. Among the various B vitamins, B1 (thiamine), B6 (pyridoxine), and B9 (folate) have notable benefits for the kidneys.

Here are some of the benefits of vitamin B for the kidneys:

• Aids in maintaining a balanced metabolism of oxalate, a key component in the formation of kidney stones.
• Regulates homocysteine levels, contributing to better kidney function.
• Prevents kidney damage by providing protection against thiamine deficiency.
• Improves kidney function through the regulation of homocysteine levels.

To reap the benefits of Vitamin B for kidney health, incorporate B vitamin-rich foods into your diet. These include whole grains, beans, lentils, leafy greens, nuts, seeds, and fortified cereals.

Importance of Iron for Kidney Health

Iron plays a critical role in maintaining kidney health and overall well-being, including the production of red blood cells. Red blood cells carry oxygen to the tissues, including the kidneys. People with low levels of iron are more likely to develop kidney disease because their kidneys do not get enough oxygen.

Here are some of the benefits of iron for kidney health:

• Helps produce red blood cells, ensuring that the kidneys receive sufficient oxygen.
• Helps maintain optimal energy production within the kidneys, supporting their proper functioning.
• Protects against kidney stones by binding to calcium and preventing it from being deposited in the kidneys.
• Aids in the regeneration of damaged cells and helps preserve the overall structure and function of these vital filtering units.

Maintaining proper iron levels is crucial for kidney health. Include iron-rich foods in your diet, such as lean meats, beans, lentils, dark leafy greens, and fortified cereals.

The Role of Vitamin D in Kidney Function

Vitamin D, often referred to as the "sunshine vitamin," is a crucial fat-soluble vitamin that not only supports bone health but also plays a significant role in kidney function. The kidneys and vitamin D have a dynamic relationship, and understanding this connection is essential for maintaining optimal kidney health.

Here are some of the benefits of vitamin D for kidney health:

• Helps to regulate calcium and phosphorus levels in the body.
• Regulate parathyroid hormone (PTH) levels, preventing imbalances that can lead to bone and kidney problems.
• Supports a robust immune system, which is essential for protecting the kidneys from infections and diseases.

Vitamin D can be obtained through exposure to sunlight and dietary sources such as fatty fish (e.g., salmon, mackerel), fortified dairy products, and egg yolks.

Natural Supplements for Kidney Function

There are a number of natural supplements that have been shown to be beneficial for kidney function. ⁵⁶ Some of the most commonly recommended natural supplements for kidney function include:

• Alpha lipoic acid: Alpha lipoic acid is an antioxidant that has been shown to protect the kidneys from damage.
• Cranberry: Cranberry supplements or extracts may help prevent urinary tract infections (UTIs) by inhibiting the adhesion of bacteria to the urinary tract walls. UTIs can potentially lead to kidney infections, so reducing their occurrence may indirectly support kidney health.
• D-mannose: D-mannose is a type of sugar that is naturally found in fruits and vegetables. It has been shown to be beneficial for kidney health in a number of ways,¹³ including preventing urinary tract infections, reducing inflammation, and improving kidney function.
• Coenzyme Q10: Coenzyme Q10 is an antioxidant that is essential for cellular energy production.
• L-arginine: L-arginine is an amino acid that has been shown to improve kidney function in people with chronic kidney disease.

Vitamins and Minerals to Be Cautious of with Kidney Issues

If you have kidney issues or are at risk of kidney problems. It's essential to be cautious about certain vitamins and minerals to avoid putting extra strain on your kidneys. ⁵⁶ Here are some vitamins and minerals to be cautious of:

1. Vitamin C: High doses of vitamin C supplements may lead to the formation of kidney stones in susceptible individuals.
2. Vitamin A: Excessive intake of vitamin A supplements can cause toxicity and potentially harm the kidneys.
3. Phosphorus: High levels of phosphorus in the blood can be harmful to the kidneys, especially for individuals with kidney disease.
4. Potassium: High potassium levels (hyperkalemia) can be dangerous, so it's crucial to limit potassium-rich foods and avoid potassium supplements without medical supervision.
5. Magnesium: While magnesium is generally safe, excessive magnesium supplementation can lead to hypermagnesemia.
6. Calcium: High doses of calcium supplements, especially when taken without vitamin D, can contribute to kidney stone formation and other kidney issues.

How to Incorporate Supplements into Kidney-Friendly Lifestyle?

When it comes to maintaining kidney health, incorporating supplements thoughtfully into your lifestyle can play a supportive role.^567891013 One such supplement that has gained attention for its potential benefits in promoting urinary tract health is D-Mannose, which can be found in products like Alerna Kidney Health's D-Mannose dietary supplement.

If you are interested in incorporating D-Mannose into your routine, consult with a healthcare professional first to ensure it is suitable for you, especially if you have kidney issues or are taking medications.

Follow the recommended dosage, maintain proper hydration, and complement it with a kidney-friendly diet and an overall healthy lifestyle to support your kidney health effectively.

Frequently Asked Questions

How can I improve kidney function naturally?

To improve kidney function naturally, maintain a kidney-friendly diet low in sodium, phosphorus, and potassium. Stay hydrated, exercise regularly, manage blood pressure and blood sugar levels, quit smoking, and limit alcohol intake. Consult a healthcare professional for personalized advice.

How do you know if your kidneys are recovering?

Improvement in kidney function can be assessed through blood tests that measure creatinine, blood urea nitrogen (BUN), and estimated glomerular filtration rate (eGFR). Monitoring these levels over time can indicate kidney recovery.

How can I make my kidneys stronger again?

To make your kidneys stronger, follow a kidney-friendly lifestyle. Focus on a balanced diet, hydration, regular exercise, and managing underlying health conditions like hypertension and diabetes. Avoid nephrotoxic substances and seek medical guidance.

Which fruit is good for kidney creatinine?

Berries, apples, cherries, and grapes are generally considered good choices for kidney health, but portion control is essential due to their natural sugar content. Always consult a healthcare professional for personalized dietary recommendations.

Medical Disclaimer:

The information provided in this article is for educational and informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Please consult with your healthcare provider before starting any new dietary supplement, especially if you are pregnant, nursing, have a medical condition, or are taking other medications. Never disregard professional medical advice or delay seeking it because of something you have read in this article.

References:

1. How Your Kidneys Work. (2015, December 24). National Kidney Foundation. https://www.kidney.org/atoz/content/howkidneyswork
2. Eating, Diet, & Nutrition for Kidney Stones - NIDDK. (2017, May 1). National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/urologic-diseases/kidney-stones/eating-diet-nutrition
3. How to prevent kidney stones - Harvard Health. (2013, October 4). Harvard Health. https://www.health.harvard.edu/blog/5-steps-for-preventing-kidney-stones-201310046721
4. Kidney Failure: Causes, Symptoms & Treatment. Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/17689-kidney-failure
5. Miami Kidney Group. (2023, February 8). Supplements that can improve your kidney health. Miami Kidney Group Blog. Retrieved from https://www.miamikidney.com/single-post/supplements-that-can-improve-your-kidney-health
6. National Kidney Foundation (n.d.). Vitamins and Minerals in Chronic Kidney Disease. Retrieved from https://www.kidney.org/atoz/content/vitamineral#why-do-i-need-different-amounts-vitamins-and-minerals
7. Hu J, Liu Z, Zhang H. Omega-3 fatty acid supplementation as an adjunctive therapy in the treatment of chronic kidney disease: a meta-analysis. Clinics (Sao Paulo). 2017 Jan 1;72(1):58-64. doi: 10.6061/clinics/2017(01)10. PMID: 28226034; PMCID: PMC5251198.
8. Dai Y, Quan J, Xiong L, Luo Y, Yi B. Probiotics improve renal function, glucose, lipids, inflammation and oxidative stress in diabetic kidney disease: a systematic review and meta-analysis. Ren Fail. 2022 Dec;44(1):862-880. doi: 10.1080/0886022X.2022.2079522. PMID: 35611435; PMCID: PMC9154786.
9. Uddin MJ, Farjana M, Moni A, Hossain KS, Hannan MA, Ha H. Prospective Pharmacological Potential of Resveratrol in Delaying Kidney Aging. Int J Mol Sci. 2021 Jul 31;22(15):8258. doi: 10.3390/ijms22158258. PMID: 34361023; PMCID: PMC8348580.
10. Supplements That Can Improve Your Kidney Health | Miami Kidney Group. (2019, November 30). Miami Kidney Group. https://www.miamikidney.com/single-post/supplements-that-can-improve-your-kidney-health
11. Kidney Stones | Diet Plan and Prevention. (2021, December 13). National Kidney Foundation. https://www.kidney.org/atoz/content/diet
12. Kidney Stones. (2021, December 13). National Kidney Foundation. https://www.kidney.org/atoz/content/kidneystones
13. Ala-Jaakkola, R., Laitila, A., Ouwehand, A.C. et al. Role of D-mannose in urinary tract infections – a narrative review. Nutr J 21, 18 (2022). https://doi.org/10.1186/s12937-022-00769-x