You're probably aware that going too many hours between meals can cause a drop in blood sugar that leads to headaches, fatigue, and difficulty concentrating. While that's true, new research shows that planned periods of Intermittent Fasting (IF) or Intermittent Energy Restriction (IER) can be good for your health.
This is not about starving yourself to lose weight. Instead, IER aims to give the digestive system a break from food, which allows the body to cleanse itself. To be truly restorative, IER is matched with a similar break from mental and physical activity.
Though clinical research is still in the early stages for both animal and human studies, several health benefits have been identified. Researchers are investigating different types of IER protocols for both healthy adults and those who are living with obesity, heart disease, diabetes, and metabolic diseases.
Benefits of Intermittent Fasting
Increased sensitivity to insulin and leptin, which can lower risk of diabetes, heart disease and even cancer
Better regulation of hormones associated with appetite
Enhanced metabolic use of stored fat
Lower triglyceride levels, which decreases risk for heart disease
Enhanced awareness of appetite and cues for eating
Intermittent Fasting Regimens
During an Intermittent Fast, drink plenty of water, keep exercise to low intensity, and avoid stress such as the kind created by work deadlines or caretaking for family. For best health practices, choose unprocessed, whole foods including grains, fresh fruits and veggies, and best quality fish, meat and dairy.
The 16/8 Method involves skipping breakfast and restricting your daily eating period to 8 hours (e.g., Noon – 8 PM), then fasting for 16 hours (8 PM to 12 PM the next day).
The Weekly/Bi-weekly 24-hour Fast involves a 24 hour period of fasting for one or two days per week or every other week: Last meal at 6 PM Monday, no food but plenty of water until 6 PM the next day.
The 5:2 Method involves choosing any two non-consecutive days of the week and eating only about 600 calories on those days: Tuesday 600 calories; Thursday 600 calories, rest of the week eating regular, healthy meals.