Intermittent Fasting

Definition

Intermittent fasting is an eating pattern where you cycle between periods of eating and fasting. It doesn't specify which foods you should eat, but rather when you should eat them.

Scientific / Technical Definition

Intermittent fasting refers to dietary patterns that cycle between fasting periods and non-fasting periods within a defined time frame, which can promote metabolic regulation and may provide several health benefits, including weight loss, improved insulin sensitivity, and reduced inflammation. Typical intermittent fasting schedules include the 16/8 method, 5:2 diet, and eat-stop-eat strategies.

Benefits

• May aid in weight loss and belly fat reduction
• Can improve insulin sensitivity and reduce risk of type 2 diabetes
• May enhance brain function and reduce risk of neurodegenerative diseases
• Has been shown to reduce inflammation and oxidative stress

Examples

• 16/8 method: fasting for 16 hours and eating during an 8-hour window
• 5:2 method: eating normally for 5 days and reducing calorie intake to 500-600 for 2 days
• Eat-Stop-Eat: 24-hour fast once or twice a week

Additional Information

• side effects: Potential side effects include hunger, fatigue, and headaches, especially during the adaptation phase. Individuals with certain medical conditions should consult a healthcare provider before starting intermittent fasting.

Related Terms

• Caloric Restriction
• Metabolic Flexibility
• Ketosis

References

• The effects of intermittent fasting on metabolism
• Intermittent fasting: facts and fiction