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Is Keto Bad for Your Liver or Kidneys? What the Research Says

The ketogenic (keto) diet is widely promoted for weight loss and blood sugar control. By drastically reducing carbohydrates and increasing fat intake, the body enters a metabolic state called ketosis, burning fat for energy instead of glucose. But as keto has grown in popularity, so have concerns about its potential long-term impact on liver and kidney health.

So, is keto harmful to your liver or kidneys?

Let’s explore what the science says—and how the ASTR Diet offers a safer alternative for metabolic health without the same risks.


Keto and Liver Health: Risk of Fatty Liver Disease

While keto is often used to support weight loss and improve insulin resistance, it may also contribute to non-alcoholic fatty liver disease (NAFLD) in some individuals.

📚 “High-fat, low-carb diets may promote liver fat accumulation, particularly in the absence of plant-based antioxidants.” — Bruci et al., 2020

Additionally, ketosis increases the production of ketone bodies, which adds metabolic stress to the liver, especially in those with pre-existing liver issues.


Keto and Kidney Health: High Protein Load Can Stress Renal Function

One of the most well-documented concerns about keto is its potential impact on kidney health:

📚 “High protein intake accelerates kidney function decline in women with mild renal insufficiency.” — Knight et al., 2003, Annals of Internal Medicine

📚 “Acidic load from animal-based diets can impair kidney filtration and promote renal injury.” — Friedman, 2004, Kidney International


Other Concerns with Keto


A Safer Alternative: The ASTR Diet

The ASTR Diet, developed by Dr. Joseph Jacobs (Doctor of Physical Therapy and functional medicine expert), offers a safer and more complete alternative to keto.

✅ ASTR Diet Benefits:


Scientific Summary


Want a Safer Way to Burn Fat and Heal Inflammation?

Learn the full ASTR Diet system in Dr. Joseph Jacobs’ official book:
👉 Eat to Heal: Unlock the Healing Power of Food to End Sickness and Thrive


Conclusion:
While keto may offer short-term metabolic improvements, it can place unnecessary stress on the liver and kidneys, especially when not carefully managed. The ASTR Diet delivers many of keto’s benefits—fat-burning, blood sugar control, reduced inflammation—without the long-term organ strain, making it a smarter and safer approach for lasting health.