hypertension and fasting

Individuals with hypertension may notice variations in their blood pressure during fasting, typically as a result of the body’s adaptive response to decreased food consumption. With reduced caloric intake, the body might slow down its metabolism to conserve energy, potentially leading to a drop in blood pressure. However, for those with pre-existing hypertension, this decrease may not be enough to counteract their chronic high blood pressure, so their readings could still exceed the norm.

During fasting, a possible reduction in water intake could lead to increased blood concentration and viscosity, complicating the heart’s task of pumping blood and potentially causing a rise in blood pressure. Moreover, the depletion of glycogen stores during fasting can result in ketone body production, which are acidic compounds. Excessive ketone bodies can lead to acidosis, adversely affecting blood pressure.

Hypertensive patients should vigilantly monitor their blood pressure changes while fasting and follow their physician's guidance for any necessary adjustments. In the event of severe blood pressure fluctuations or other distressing symptoms during fasting, they should seek medical attention without delay. Additionally, it is crucial for these patients to maintain adequate hydration to prevent excessive dehydration and to ensure they receive essential nutrients to sustain bodily functions.