For a post on Insulin Sensitivity, please see
This episode, “Q&A: Keto for AFib, Heart Risk, Ketone Levels & More” is, like all of Metabolic Mind posts, outstanding. For me the most helpful part of the talk is from 9:57 to 14:12 where Dr. Scher discusses a lot of the nuances of ketogenic therapy.
All that follows is from The Metabolic Mind Post.
Q&A: Keto for AFib, Heart Risk, Ketone Levels & More
Jun 19, 2026 Metabolic Mind PodcastCan ketogenic therapy help atrial fibrillation? What should you make of the KETO-CTA study? And do higher ketones always mean better results? In this Metabolic Mailbag episode, Dr. Bret Scher answers audience questions about cardiovascular health, ketosis, ketone levels, and how to personalize a ketogenic approach based on your goals and metabolic health. From AFib concerns to cholesterol controversies and troubleshooting low ketone readings, this episode tackles some of the most common questions in the keto community.In this episode, we cover:
- Ketogenic therapy and atrial fibrillation (AFib)
- The latest update on the KETO-CTA study
- LDL cholesterol, plaque, and cardiovascular risk
- Why ketone levels don’t tell the whole story
- Raising ketones without sacrificing energy or muscle
- Carbohydrate intake and metabolic flexibility
- Fasting, protein, and thyroid considerations
- MCT oil, exogenous ketones, and other strategies to increase ketosis
One of the biggest takeaways: context matters. Whether you’re evaluating cholesterol, ketone levels, or cardiovascular risk, there is rarely a one-size-fits-all answer. Understanding your goals, metabolic health, and individual response is often more important than chasing a specific number. 🔎 Have questions about how to apply metabolic therapies effectively? Submit them at https://www.metabolicmind.org/questions/ to be featured in a future Metabolic Mailbag episode. #MetabolicMind #KetogenicTherapy #CardiovascularHealth Expert Featured:
- Bret Scher
- https://www.metabolicmind.org/team/br…
- https://www.instagram.com/drscher858/…
/ bret-scher-08baaa102
Experts Mentioned:
- Dave Feldman
/ realdavefeldman
/ dave-feldman
Resources Mentioned:
- Papers
- https://pubmed.ncbi.nlm.nih.gov/40192… (REDACTED)
Free CME Clinician Trainings: Are you a clinician who would like to learn more about the science behind these therapies and how to implement them in practice? Earn CME with our growing library of courses from some of the top experts in the field including Dr. Chris Palmer, Dr. Georgia Ede, Dr. Matthew Bernstein, Dr. Mariela Glandt, Dr. Deanna Kelly, Dr. Julie Milder, Dr. Zoltan Sarnyai, and Dr. Bret Scher with more coming soon. Our courses have been made FREE by grants from Baszucki Group, so we can spread these powerful therapies as widely as possible. Earn CME/CNE credits: https://www.metabolicmind.org/for-cli… Follow our channel for more information and education from Bret Scher, MD, FACC, including interviews with leading experts in Metabolic Psychiatry. Learn more about metabolic psychiatry and find helpful resources at https://metabolicmind.org/ About us: Metabolic Mind is a non-profit initiative of Baszucki Group working to transform the study and treatment of mental disorders by exploring the connection between metabolism and brain health. We leverage the science of metabolic psychiatry and personal stories to offer education, community, and hope to people struggling with mental health challenges and those who care for them. Our channel is for informational purposes only. We are not providing individual or group medical or healthcare advice nor establishing a provider-patient relationship. Many of the interventions we discuss can have dramatic or potentially dangerous effects if done without proper supervision. Consult your healthcare provider before changing your lifestyle or medications.
Timestamps:0:00 – Introduction0:45 – Keto & AFib: Can keto help or hurt heart rhythm?3:45– What was the KETO-CTA Study?5:20 – Why the original KETO-CTA paper was retracted?7:25 – How to think about cardiac risk on keto?9:47 – Ketosis, energy level, and adding carbs14:10 – How to raise ketone levels when all else fails?15:14 – Outro





