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lab animals take food only when they feel hungry. This kind of overeating or continuous eating through meals with snacks in-between comes with outcomes like
metabolic errors. Metabolic problems may include insulin imbalance/resistance
resulting in other hormonal imbalances as well as abdominal adiposity. These problems originate with modernization and sedentary lifestyle. The combination of
physical inactivity with eating all the time results in the deadly ailments not only
body but also affects the brain.
Periodic fasting is the type of intermittent fasting in which time limit is defined
from 16 to 48 h with very low caloric food. This may start from 2 days up to 21 or
more days for proper results. Both intermittent fasting and periodic fasting showed
a positive and curative impact on lots of metabolic issues. Intermittent fasting is an
effective way for the improvement of metabolism by normalizing insulin levels and
encourages faster weight loss.
Intermittent Fasting Schedules
Fasting is a well-known practice among the followers of different religions. The
most attractive patterns of intermittent fasting are time-restricted feeding. There are
several types of fasting mechanisms (Fig. 26.1).
Fig. 26.1 Different techniques of intermittent fasting
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