Hardening of blood vessels which can result in stroke or heart attack is mainly caused by high cholesterol and high blood pressure (Fig. 1).
It has been found by recent researches that there are 2 ingredients which prevent and improve high cholesterol and high blood pressure.
The ingredient to prevent and improve high blood pressure is Tofu.
Tofu is rich in magnesium.
Tofu is made from soy milk and brine (Nigari) which is actually magnesium chloride, a byproduct of extracting salt from sea water. One hard tofu contains 390 mg of magnesium.
Magnesium excretes extra salt from the body.
When salt in the blood increases, water in the blood also increases because salt draws water. As a result of that, pressure to the wall of blood vessels increases, leading to high blood pressure.
Magnesium promotes the function of the kidney which excretes salt from the body as urination.
Experiment: if you eat a lot of tofu, how much salt can you excrete?
Young and healthy people generally take 24 hours to excrete 80 % of salt taken for a day. The amount of salt excretion of the couple with the age of 51 and 56 who produced and ate a lot of tofu were 84 % and 97 % while the amount of salt excretion in 40s to 70s was about 40 % in a research.
Their blood pressures are 114 and 126, and their age of blood vessels are early 50s and early 40s (actual age: 56 and 51). This mean that they keep their blood vessels healthy.
Firm or Extra firm tofu contains more magnesium than soft tofu.
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