Does Drinking Lemon Water Lower Blood Pressure?

Lemon water and decreasing blood pressure have long been linked. Lemon is a fruit rich in vitamins, minerals, essentials oils and phenolic compounds like flavonoids. Its health benefits are many and researchers have suggested that it exerts a certain effect on blood pressure. A study published in the journal Food Science and Technology International, entitled “Suppressive effect of components in lemon juice on blood pressure in Spontaneously Hypertensive Rats (SHR)” showed that lemon did have a suppressive effect on the SHR. But, does it lower BP in humans?

lemon water

Researchers from Japan have attempted to analyse the effect of daily lemon intake on blood pressure last year (2014). They had previously reported in another study that lemon ingestion had a “systolic blood pressure-lowering effect”. In the later study, it was confirmed that lemon intake does bring about this effect.

They suggested that the reason behind has to do with the properties of citric acid. Citric acid promotes the absorption of calcium and magnesium obtained from food. The two ions are said to contribute to BP when they are efficiently absorbed. Furthermore, citric acid showed a positive correlation with the number of red blood cells.

Also, flavonoids found in lemon peel might also participate in reducing systolic blood pressure.

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