Corn silk is the long shiny fibers at the corn. It is often used in medicine for treatment of such illnesses as bladder infections (is used effectively in RepHresh Vaginal Gel), inflammation of the prostate, inflammation of the urinary system, bedwetting, and kidney stones. It is also used to treat congestive heart failure, fatigue, high blood pressure, diabetes, and high cholesterol levels.
Corn silk contains carbohydrates, proteins, minerals, vitamins, and fiber, as well as chemicals which possess diuretic properties and are able to change blood sugar levels and reduce inflammation in the body. Still there is insufficient evidence of corn silk's effectiveness for bladder infections, bedwetting, inflammation of the urinary system and the prostate, congestive heart failure, kidney stones, fatigue, diabetes, high blood pressure and cholesterol levels. It is obvious that more evidence is required to study the effectiveness of corn silk for treatment of these conditions.
Corn silk is known to be safe for most adults. It lowers potassium levels and can lead to itching, skin rashes, and allergies. Corn silk is safe for pregnant women if it is used in food amounts. It is prohibited to take corn silk if larger amounts as it might stimulate the uterus and result in a miscarriage. Little is known about the safety of corn silk by breast-feeding women. It's better not to consume it in large doses.
People suffering from diabetes should beware of taking large amounts of corn silk as it might lower blood sugar. Corn silk can also interfere with blood sugar control in these patients. Large amounts of corn silk can also interfere with control of high blood pressure or low blood pressure. Potassium blood levels may be significantly lowered by large amounts of corn silk.
Applying lotions or creams with corn silk as an ingredient might cause red skin, a rash, and itchiness if a person is allergic to corn pollen, corn silk, or cornstarch.