Coffee is one of the most popular beverages in Saudi Arabia, an integral part of everyday culture, whether for social gatherings or relaxing moments. With the growing interest in health and nutrition, many coffee lovers are wondering: Does drinking coffee affect kidney health? Opinions vary between those who believe that coffee may harm the kidneys due to its caffeine content, and those who believe it has potential health benefits. In this article, prepared specifically for the Coffee Wellbeing blog, we will explore the relationship between coffee and kidney health based on scientific research, focusing on the effects of caffeine, chlorogenic acids, and other components in coffee. We will also offer tips for healthy coffee drinking using specialty beans from Saudi roasters such as Hawand , Ash , and Duha , and brewing tools from Coffee Wellbeing . If you are a coffee lover concerned about your health, this guide will answer your questions and allay any concerns about coffee's effect on the kidneys.
Coffee and Kidney Health: What Do Studies Say?
Coffee contains many active compounds, such as caffeine, chlorogenic acids, and antioxidants, that may affect bodily functions, including the kidneys. Let's review coffee's effects on the kidneys based on scientific research:
1. Potential benefits of coffee for kidney health
- Antioxidants : Coffee contains powerful antioxidants such as chlorogenic acids, which may help reduce inflammation and oxidative stress in the kidneys, supporting kidney health.
- Reducing the risk of kidney stones : Some studies suggest that moderate coffee consumption may reduce the risk of kidney stones. A study published in the American Journal of Kidney Diseases (2021) found that drinking coffee may be associated with a 10% lower risk of kidney stones, due to caffeine's diuretic effect, which promotes urine flow and prevents calcium and oxalate buildup.
- Metabolism Support : Caffeine stimulates metabolism, which may help reduce excess weight, a factor linked to improved long-term kidney health.
- Reducing the risk of chronic diseases : Studies such as one published in the Journal of Clinical Nutrition (2020) indicated that coffee consumption may be associated with a 15–20% lower risk of chronic kidney disease (CKD) in people who drink 1–3 cups per day, thanks to antioxidants.
2. Potential concerns about coffee's effect on the kidneys
- Caffeine's diuretic effect : Caffeine has a diuretic effect, increasing urine production. Failure to replace lost fluids with water can lead to mild dehydration, which puts stress on the kidneys. However, this effect is minimal with moderate consumption (200–400 mg of caffeine per day).
- Unhealthy additions : Coffee sweetened with sugar, cream, or high-calorie sauces (such as caramel or chocolate) may contribute to weight gain or high blood sugar levels, which negatively affects the kidneys in the long term.
- Oxalates : Coffee contains small amounts of oxalates, which may contribute to kidney stone formation in susceptible individuals. However, these amounts are very small compared to foods like spinach or almonds.
- Stress on the kidneys in kidney patients : People with chronic kidney disease or kidney failure may need to cut down on caffeine, as it can affect blood pressure or interfere with medications.
3. Scientific Conclusion
Research suggests that moderate coffee drinking (1–3 cups per day, equivalent to 200–400 mg of caffeine) is safe and may be beneficial for kidney health in healthy individuals. Potential benefits include a reduced risk of kidney stones and chronic disease, while potential risks (such as dehydration or increased oxalate levels) can be reduced by drinking water and avoiding unhealthy additives. However, people with kidney disease are advised to consult a doctor before increasing their coffee consumption.
The best types of coffee for kidney health
To enjoy coffee while maintaining kidney health, it's best to choose high-quality specialty beans from Saudi roasters like Hawand , Ash , and Dahha , and prepare them in healthy ways. Here are the best options:
1. Black coffee (espresso or drip)
- Description : Black coffee is calorie-free, making it an ideal choice for avoiding weight gain that can affect the kidneys.
- Recommended grains :
- Dahy Yirgacheffe : Washed, processed Ethiopian beans with hints of jasmine and citrus. Light roasting preserves antioxidants.
- Ash Three Elements : A blend of Ethiopia, Colombia, and Brazil, with berry and caramel flavors.
- Preparation method :
- Espresso : Grind 18g of Douha Yerqacheffe beans to a fine grind, extract 36g of espresso using a Delonghi Dedica coffee machine.
- Drip Coffee : Use 15g of medium ground Ash Three Elements beans, pour 250ml of hot water (92°C) using a Hario V60 funnel.
- Why healthy? : Sugar and cream free, and rich in antioxidants that support kidney health.
2. Cold Brew
- Description : Cold Brew is low in acidity, making it gentle on the digestive system and kidneys. It contains high caffeine and low calories.
- Recommended grains :
- Hound Brazil Cascaval : Brazilian beans with chocolate and caramel flavors.
- Ash Red Sea Blend : with flavors of brown sugar and cocoa.
- Preparation method :
- Grind 100g of Brazilian Hound beans to a coarse grind, soak in 1 liter of cold water for 12-16 hours using a Hario Mizudashi Coffee Luxury Brewer.
- Strain and serve with 200ml of ice cubes.
- Why healthy? : Low in acid, can be eaten plain to reduce calories.
3. Green coffee
- Description : Unroasted coffee beans contain a high concentration of chlorogenic acids, which may support kidney health by reducing inflammation.
- Recommended Beans : Green Coffee Beans from Luxury Coffee (Ethiopian or Colombian sources).
- Preparation method :
- Grind 10-15g of green coffee beans to a medium grind, steep in 200ml of hot water (80°C) for 5-7 minutes, then filter.
- Why healthy? : Rich in antioxidants, and zero calories when prepared without additives.
Tips for drinking coffee in a kidney-healthy way
- Moderation in consumption : Stick to 1-3 cups per day (200-400 mg caffeine) to avoid dehydration or stress on the kidneys.
- Drink water : Drink enough water (2-3 liters per day) to replace fluids lost due to the diuretic effect of caffeine.
- Avoid unhealthy additives : Choose sugar-free sauces like Torani Sugar-Free or 1883 Sugar-Free Luxury Coffee , and use unsweetened almond or oat milk instead of cream.
- Choose specialty beans : Use specialty coffee beans from Hound , Ash , or Doha to ensure high quality and rich flavors without the need for additives.
- Consult your doctor : If you suffer from kidney disease, consult your doctor to determine the appropriate amount of coffee for your condition.
- Use high-quality brewing equipment : Choose equipment like the Hario V60 , Hario Mizudashi , or Delonghi Dedica from Luxury Coffee to brew clean, healthy coffee.
Frequently Asked Questions About Coffee and Kidney Health
1. Does coffee cause kidney stones?
No, coffee does not cause kidney stones when consumed in moderation. In fact, some studies suggest it may reduce the risk of stone formation due to its diuretic effect. However, people at risk of oxalate stones should consult a doctor.
2. Is caffeine harmful to the kidneys?
Caffeine in moderate amounts (200–400 mg daily) is safe for healthy individuals. However, excessive consumption can cause mild dehydration, which puts stress on the kidneys. Drink plenty of water to avoid this effect.
3. Is coffee safe for kidney patients?
People with chronic kidney disease or renal failure may need to limit their caffeine intake, as it can affect blood pressure or interfere with medications. Consult your doctor to determine the appropriate amount.
4. Is green coffee better for the kidneys than roasted coffee?
Green coffee contains a higher concentration of chlorogenic acids, which may support kidney health thanks to their antioxidant properties. However, roasted coffee, such as Doha Yergacheff's, offers similar benefits with a better flavor.
5. How can I drink coffee in a kidney-healthy way?
- Choose black coffee or cold brew without additives.
- Use specialized grains from Hound , Ash , or Dahya .
- Drink plenty of water to avoid dehydration.
- Avoid sugar and cream, and use sugar-free sauces from Luxury Coffee .
6. Can coffee protect against kidney disease?
Some studies suggest that moderate coffee consumption may reduce the risk of chronic kidney disease thanks to its antioxidant properties. However, coffee cannot be relied upon alone as a treatment, and a healthy diet should be followed.
Why choose coffee beans from Luxury Coffee?
At Luxury Coffee , we offer a premium selection of specialty coffee beans from Saudi roasters like Hawand , Ash , and Doha , ideal for brewing healthy coffee that supports kidney health. We also offer sugar-free coffee sauces from Torani and 1883 Maison Routin , and brewing tools like the Hario V60 , Hario Mizudashi , and Delonghi Dedica . With free shipping and fast delivery to all cities in Saudi Arabia, you can enjoy high-quality coffee without worrying about your health. Shop our online store today and discover the world of specialty coffee.