Can kefir lower blood pressure?
Kefir, the fermented milk drink usually made from milk, is thought to be very healthy. That reputation comes from the probiotics it contains, whichif they survive the trip through the digestive tractare believed to have a positive effect on the gut.
Kefir is made by adding a kefir grain (kefir fungus, Tibetan fungus) to cows, goats, or sheeps milk. The kefir grain contains, besides lactic acid bacteria, yeasts and acetic acid bacteria that break down the milk sugar and other milk components and feed on them. Depending on the fermentation time and temperature, kefir can become slightly alcoholic (0.2 to 2 percent). In one to two days, fermentation produces the typical tangy, slightly fizzy drink.
The rats that received kefir had lower blood pressure and a healthier gut after the study period than the control groups. The permeability of the gut lining improved. That means some substances can pass through the gut lining while other, harmful or potentially dangerous substances are held back by the barrier. In addition, kefir appeared to have a positive effect on a specific enzyme in the brain that supports normal nervous system function.
The researchers conclude that kefir may promote communication between the nervous system and the gut in ways that lower blood pressure. We currently dont have information on whether this blood-pressure-lowering effect also applies to people.
This refreshing drink is very easy to make at home. Ask around among friends to see if anyone can give you a kefir grain. Because the grains feed on milk components, they grow and split into several smaller grains once they reach a certain size. These can then be passed on. For storage, they can also be dried or frozen.
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This article comes from BloodPressureDB – the leading app since 2011 that helps hundreds of thousands of people monitor their blood pressure every day.
Our content is based on carefully researched, evidence-based information and is continuously updated (as of 01/2026).
Author Sabine Croci is a certified medical assistant with many years of experience in internal medicine and cardiology practices as well as in outpatient care. Since 2015 she has led the editorial team at BloodPressureDB. With additional qualifications as a paramedic, first responder, and training in various therapy and emergency areas, she provides well-founded, practical, and reliably reviewed information.
Author Sabine Croci is a certified medical assistant with many years of experience in internal medicine and cardiology practices as well as in outpatient care. Since 2015 she has led the editorial team at BloodPressureDB. With additional qualifications as a paramedic, first responder, and training in various therapy and emergency areas, she provides well-founded, practical, and reliably reviewed information.
