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What is intermittent fasting (IF)?

Dr. Michael Roizen, MD
Internal Medicine
Intermittent fasting (IF) is decreasing your calories some days of the week, but not all days. In this video, I will discuss this eating style, and explains why it's a healthy option for longevity. 
Intermittent fasting (IF) is one of many trendy diet options these days. Basically, IF is the practice of periodically alternating between fasting (by drinking water or perhaps low-calorie drinks like coffee) and eating normally. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.