Many young men and women have the problem of hair fall. In males the hair fall starts at the age of 16 in the case of women it is around 25. Hair experts and trichologist say many reasons for hair fall which includes poor diet, heredity, more levels of testosterone, lack of blood hemoglobin and so on. In this list of reasons lack of biotin in our diet can cause severe damage to our hairs. One can ask the question out of many reasons how can I find that the exact cause of my hair fall is due to lack of biotin. There are some symptoms with which one can find whether the hair loss is due to lack of biotin or not. The symptoms include dry or scaly scalp, nausea, depression, anorexia, anemia and loss of appetite. If you can diagnose any one of the above symptom then you can start consuming foods rich in biotin. The egg yolk is very rich in biotin so one can have in two or three numbers. The other foods that are rich in biotin are kidneys, liver, milk, cheese, dairy and poultry products. The necessary intake of biotin for an ordinary person is around 300 grams per day. So start consuming foods rich in biotin and have a health and shinning hair.