The hyponatremia is caused by a relatively smaller loss in total body water. 1  any cause of hypovolemia such as prolonged vomiting, decreased oral intake, severe diarrhea. 2  diuretic use (due to the diuretic causing a volume depleted state and thence ADH release, and not a direct result of diuretic-induced urine sodium loss)
Biotin is safe but is not likely to do much to help your hair grow unless you are deficient in biotin, which is uncommon. A reasonable dose is 5 mg. However, you may get better results by taking a quality multivitamin, eating a healthy diet rich in organic fruits and vegetables, avoid junk food and getting adequate sleep.
The current recommended dosage of Biotin in Europe is set at 50 mcg/day. And how much Biotin should you take for hair growth may be some sort of a confusion regarding reference values because Europe and the USA have different numbers. The average intake from foods that contain Biotin in most western populations is about 35â70 mcg/day, showing that most people in these countries consume sufficient amounts of Biotin.