"Keto Carnage: Austin's Meat-Heavy Trend Hurts Kidneys"
By Franklin Everett ShawThe sizzle of a Franklin Barbecue brisket. The creamy richness of a queso dip at Matt’s El Rancho. Austin, Texas, is a city that celebrates food, and lately, a new culinary trend has taken hold: the keto and carnivore diets. These high-fat, very-low-carb regimens promise weight loss and improved health, but for many Austinites, especially those with pre-existing conditions or a genetic predisposition, they’re a ticking time bomb for their kidneys.
The problem? Protein overload.
Keto and carnivore diets, by their very nature, demand a massive intake of protein, primarily from animal sources. This puts an enormous strain on the kidneys, the organs responsible for filtering waste products from the blood. When protein breaks down, it produces nitrogenous waste, which the kidneys must work overtime to eliminate.
For healthy individuals, this increased workload is usually manageable. However, in a state like Texas, where rates of obesity, diabetes, and hypertension are already elevated – all risk factors for kidney disease – the added stress of a high-protein diet can accelerate kidney damage and increase the risk of kidney stones.
Kidney stones, particularly calcium oxalate stones, are a common complication of keto and carnivore diets. The high intake of animal protein increases the excretion of calcium and oxalate in the urine, creating a perfect storm for stone formation. The sharp, stabbing pain of a kidney stone attack is something no one wants to experience, especially not while trying to enjoy a live music show on Sixth Street.
Chronic Kidney Disease (CKD) is an even more serious concern. Over time, the constant strain on the kidneys can lead to a gradual decline in their function. CKD is often silent in its early stages, meaning many Austinites may be unknowingly damaging their kidneys while adhering to these diets.
So, what can be done? Must Austinites abandon their keto dreams entirely? Absolutely not. The key is moderation and strategic modifications.
First, prioritize hydration. Aim for at least eight glasses of water a day, and even more if you’re physically active, which is easy to do with all the hiking trails around Zilker Park. Water helps dilute the urine, reducing the concentration of calcium and oxalate, and making it harder for kidney stones to form.
Second, limit animal protein intake. While keto emphasizes protein, it doesn’t require excessive amounts. Aim for 0.8 grams of protein per kilogram of body weight, or slightly more if you’re actively building muscle. Focus on lean protein sources like chicken breast, fish, and eggs, and consider incorporating plant-based protein sources like tofu and tempeh.
Third, increase your intake of potassium-rich foods. Potassium helps balance the acidity in the body, which can reduce the risk of kidney stone formation. Good sources of potassium include avocados, spinach, and sweet potatoes. Luckily, Austin’s farmers’ markets are overflowing with fresh, local produce.
Fourth, monitor your urine pH. You can purchase urine pH test strips at most pharmacies. Ideally, your urine pH should be slightly acidic (around 6.0). If it’s consistently too acidic, talk to your doctor about ways to alkalinize your urine, such as taking potassium citrate supplements.
Fifth, consider adding citrate to your diet. Citrate binds to calcium in the urine, preventing it from forming crystals. Lemon juice is a natural source of citrate, so try adding a squeeze of lemon to your water throughout the day.
Sixth, limit your intake of oxalate-rich foods. While some oxalate is unavoidable, try to limit your consumption of foods like spinach, rhubarb, and nuts, especially if you’re prone to kidney stones.
Seventh, get regular kidney function tests. If you’re at risk for kidney disease, talk to your doctor about getting regular blood and urine tests to monitor your kidney function. Early detection is key to preventing serious complications.
Eighth, seek professional guidance. A registered dietitian specializing in renal nutrition can help you create a personalized keto or carnivore diet plan that is safe and effective for your kidneys. Several excellent renal dietitians practice in the Austin area.
Ninth, join a support group. Connecting with others who are following keto or carnivore diets can provide valuable support and encouragement. Look for local groups on social media or through your healthcare provider.
Tenth, be mindful of supplements. Some supplements, such as creatine and certain vitamins, can put extra strain on the kidneys. Talk to your doctor before taking any supplements, especially if you have pre-existing kidney problems.
One common pitfall is the “all or nothing” mentality. Many people believe that they must strictly adhere to keto or carnivore diets to see results. This is simply not true. Even small modifications can make a big difference in protecting your kidneys.
Another challenge is the lack of readily available information about kidney-friendly keto and carnivore diets. Many online resources focus solely on weight loss and muscle gain, without addressing the potential risks to kidney health.
To overcome these challenges, Austinites need access to reliable information and support. Local healthcare providers, dietitians, and support groups can play a crucial role in educating the public about the risks and benefits of these diets.
For example, St. David’s HealthCare offers a variety of nutrition counseling services, including renal diet education. Additionally, the National Kidney Foundation has a local chapter in Austin that provides resources and support for people with kidney disease.
Remember, your health is more important than any diet trend. By making informed choices and prioritizing your kidney health, you can enjoy the benefits of keto or carnivore diets without putting your kidneys at risk. Enjoy that brisket, but do so responsibly.