Intermittent Fasting: Benefits and Hidden Risks

Intermittent fasting (IF) has gained popularity as an effective approach for weight loss and improving metabolic health. By restricting eating to specific windows, typically fasting for 14 to 16 hours, many people find it appealing for its simplicity and potential health benefits. However, concerns about its impact on vital organs like the heart and liver are often overlooked.

While IF may offer benefits for some individuals, experts warn that it could pose serious risks, particularly to heart health. Prolonged fasting can lead to electrolyte imbalances in essential minerals like potassium, magnesium, and sodium, which are critical for heart function. These imbalances can result in arrhythmias—irregular heartbeats—that can be life-threatening

Additionally, long fasting periods can elevate cortisol, the body’s stress hormone. Chronically high cortisol levels can increase blood pressure and strain the cardiovascular system, raising the risk of heart disease. Though short-term studies show promising weight loss results, longer-term research provides mixed outcomes, and the impact on heart health remains unclear.

Concerns also extend to liver health, particularly for those with non-alcoholic fatty liver disease (NAFLD). However, IF may actually help in some cases by reducing fat accumulation and inflammation, potentially improving liver function.

Before starting an IF regimen, experts recommend consulting a healthcare provider to minimize risks and maximize benefits.