###Human: I have irregular period due to PCOD. Please advise. ###Assistant: Hi. PCOD (polycystic ovarian disease) may not always present with classic symptoms. Your condition is suggestive of PCOD. Just exercises daily. Do not gain weight. Cut down on carbohydrates. Also, daily Vitamin D 400 IU can be of some help. Otherwise, you have to take birth control pills which are basically hormones to regularize your cycles. Also, if you have long-standing PCOD or oligo or hypomenorrhea, you should be vigilant about the ill effects of excess estrogen in your body. Consult a doctor in person.