Studies Raise Questions About Keto's Impact on Liver and Heart Health
Dr. Joseph Mercola - Take Control of Your Health
Briana Mercola
4.6 • 1.5K Ratings
🗓️ 18 November 2025
⏱️ ? minutes
Summary
- While short-term ketogenic diets may aid weight loss, new research links prolonged ketosis to liver stress, impaired insulin secretion, and cardiovascular problems
- Long-term fat reliance increases circulating free fatty acids, burdening the liver, disrupting glucose regulation, and weakening metabolic flexibility — key factors in overall energy stability and heart health
- Elevated liver enzymes and triglyceride levels on keto indicate hepatic overload. This signals that the body is struggling to manage excess fat turnover and oxidation
- Treat keto as a short-term metabolic intervention, not a lifestyle diet. Gradually reintroduce whole-food carbohydrates to support steady energy, hormonal balance, and overall metabolic health
- To support balanced metabolism and long-term liver and heart health, keep total fat below 30% of daily calories, eliminate seed oils from your diet, and consume sufficient dietary fiber
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