Based on the provided reference, drinking water does not significantly increase renin.
The reference states, "In older and younger controls, plasma vasopressin levels and plasma renin activity did not change significantly with water drinking." This indicates that the activity of renin (plasma renin activity) remained largely unchanged after individuals drank water in the context of this study.
Understanding Renin Activity and Water Intake
Renin is an enzyme produced by the kidneys. It plays a crucial role in the body's renin-angiotensin-aldosterone system (RAAS), which helps regulate blood pressure, fluid balance, and electrolyte levels.
Factors that typically influence renin release include:
- Decreased blood pressure
- Decreased blood volume
- Reduced sodium levels in the kidney
- Activation of the sympathetic nervous system
Drinking water is generally associated with maintaining hydration and can influence blood volume and blood pressure depending on the volume consumed and the individual's hydration status. However, the specific study cited suggests that standard water drinking did not elicit a significant change in plasma renin activity in the control groups tested.
This finding implies that, under the conditions studied, the hydration effects of drinking water were not significant enough to stimulate or suppress renin release to a measurable degree.
