Dallas, US: Commonly incorporated into dairy products such as yoghurt and milk, probiotics are live microorganisms that have predominantly been associated with digestive health. However, a recent study suggests that its benefits may very well extend beyond the gut.
Analysing the results of nine studies examining blood pressure and probiotic consumption in 543 adults with normal and elevated blood pressure, the researchers found:
- Probiotic consumption lowered systolic blood pressure (the top number) by an average 3.56 millimeters of mercury (mm Hg) and diastolic blood pressure (the lower number) by an average 2.38 mm Hg, compared to adults who didn’t consume probiotics.
- The positive effects from probiotics on diastolic blood pressure were greatest in people whose blood pressure was equal to or greater than 130/85, which is considered elevated.
- Consuming probiotics for less than eight weeks didn’t lower systolic or diastolic blood pressure.
- Probiotic consumption with a daily bacteria volume of 109-10 12 colony-forming units (CFU) may improve blood pressure. Consumption with less than 109 CFU didn’t lower blood pressure. CFU is the amount of bacteria or the dose of probiotics in a product.
- Probiotics with multiple bacteria lowered blood pressure more than those with a single bacteria.
The findings apply to both probiotics in dairy products as well as supplements. “We believe probiotics might help lower blood pressure by having other positive effects on health, including improving total cholesterol and low-density lipoprotein, or LDL, cholesterol; reducing blood glucose and insulin resistance; and by helping to regulate the hormone system that regulates blood pressure and fluid balance,” said Dr Sun Jing, lead author of the study.