Is Fasting Good for Your Heart? A Cardiologist Explains the Science.
Video Description
In this video, Dr. Columbus Batiste, an interventional cardiologist, explains the difference between crash “cleanse” diets and evidence-based fasting approaches like time-restricted eating and intermittent fasting, showing how structured eating windows can support cardiometabolic health when paired with hydration, plant-rich whole foods, and appropriate medical guidance rather than extreme detox cleanses.
Timestamps
[0:00] – Why “cleanse” detox diets aren’t the same as fasting
[1:27] – What fasting really is: types, timing, and fasting vs. starvation
[3:58] – Time-restricted eating vs. intermittent fasting and how to start safely
[5:13] – What happens in your body during fasting: fuel tanks, ketones, and signals
[8:19] – Clinical “receipts,” safety cautions, and how to build a simple daily fasting window
I’m Dr. Columbus Batiste, a double board-certified Interventional Cardiologist, author of SELFISH.
My mission is to empower YOU to take control of your health.
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Linkedin: linkedin.com/in/drbatiste
References
1. Cardiometabolic Benefits of Intermittent Fasting. Varady KA, Cienfuegos S, Ezpeleta M, Gabel K. Annual Review of Nutrition. 2021;41:333-361. doi:10.1146/annurev-nutr-052020-041327.
2. Intermittent Fasting Strategies and Their Effects on Body Weight and Other Cardiometabolic Risk Factors: Systematic Review and Network Meta-Analysis of Randomised Clinical Trials. Semnani-Azad Z, Khan TA, Chiavaroli L, et al. BMJ (Clinical Research Ed.). 2025;389:e082007. doi:10.1136/bmj-2024-082007.
3. Longer-Term Effects of Intermittent Fasting on Body Composition and Cardiometabolic Health in Adults With Overweight and Obesity: A Systematic Review and Meta-Analysis. Khalafi M, Maleki AH, Ehsanifar M, Symonds ME, Rosenkranz SK. Obesity Reviews : An Official Journal of the International Association for the Study of Obesity. 2025;26(2):e13855. doi:10.1111/obr.13855.
4. Current Research: Effect of Time Restricted Eating on Weight and Cardiometabolic Health. Gabel K, Varady KA. The Journal of Physiology. 2022;600(6):1313-1326. doi:10.1113/JP280542.
5. Comparison of Different Intermittent Fasting Patterns or Different Extents of Calorie Restriction for Weight Loss and Metabolic Improvement in Adults: A Systematic Review and Network Meta-Analysis of Randomized Controlled Trials. Wu X, Ding Y, Cao Q, et al. Nutrition Reviews. 2025;:nuaf056. doi:10.1093/nutrit/nuaf056.
6. Effects of Intermittent Fasting on Health, Aging, and Disease. de Cabo R, Mattson MP. The New England Journal of Medicine. 2019;381(26):2541-2551. doi:10.1056/NEJMra1905136.
7. Intermittent Fasting for Weight Management and Metabolic Health: An Updated Comprehensive Umbrella Review of Health Outcomes. Hua Z, Yang S, Li J, et al. Diabetes, Obesity & Metabolism. 2025;27(2):920-932. doi:10.1111/dom.16092.
8. Unlocking the Benefits of Fasting: A Review of Its Impact on Various Biological Systems and Human Health. Mackieh R, Al-Bakkar N, Kfoury M, et al. Current Medicinal Chemistry. 2024;31(14):1781-1803. doi:10.2174/0109298673275492231121062033.
9. A Pesco-Mediterranean Diet With Intermittent Fasting: JACC Review Topic of the Week. O’Keefe JH, Torres-Acosta N, O’Keefe EL, et al. Journal of the American College of Cardiology. 2020;76(12):1484-1493. doi:10.1016/j.jacc.2020.07.049.
10. Safety, Health Improvement and Well-Being During a 4 to 21-Day Fasting Period in an Observational Study Including 1422 Subjects. Wilhelmi de Toledo F, Grundler F, Bergouignan A, Drinda S, Michalsen A. PloS One. 2019;14(1):e0209353. doi:10.1371/journal.pone.0209353.
IMPORTANT NOTE: These strategies should be used as a complement to, not a replacement for, prescribed medications and a diverse plant-based diet rich in vegetables, legumes, fruits, and whole grains. Always consult your healthcare provider before making dietary changes, especially if you have existing cardiovascular conditions or are taking medications.
Disclaimer: The content on this channel is for general information and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. All viewers should consult their physician or qualified healthcare provider before starting any medical program, treatment, or making changes to their health regimen or diet. You should not use this information to self-diagnose or treat any health condition.
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