How does intermittent fasting work for weight loss?

Sindujaa D N
Intermittent fasting focus on when food is consumed rather than specific dietary choices. A popular method includes restricting eating to a specific timeframe, like an 8-hour window, and abstaining from food for the remaining 16 hours. Another approach is fasting on alternate days. The main mechanism driving weight loss with intermittent fasting is manipulating the body's metabolism.

During fasting periods, the body depletes stored glycogen and initiates the breakdown of fat for energy, a process known as ketosis. This metabolic shift increases fat oxidation, contributing to weight loss. Additionally, intermittent fasting may improve insulin sensitivity, aiding better blood sugar control and reducing the chances of excess glucose storage as fat.


Intermittent fasting may also stimulate the release of norepinephrine and human growth hormone, which play roles in fat breakdown and muscle preservation. The practice is linked to elevated levels of adiponectin, a hormone involved in metabolism regulation. In addition to its metabolic impacts, intermittent fasting can result in reduced calorie intake, as individuals tend to eat fewer meals and snacks during the designated eating window. This calorie deficit is a key factor in weight loss.


It's essential to recognize that individual responses to intermittent fasting vary, and factors like overall diet quality and physical activity levels also influence outcomes. Seeking guidance from a healthcare professional or nutritionist before starting any fasting regimen is recommended

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