I started doing Atkins on monday after previously losing a bit of weight on it plus have read it helps PCOS sufferers. I have stuck to it really well. I suffer from PCOS and haven't had a period for 2 years. - weigh in day today, and i cannot believe it - i have come on! - which is great - but then i weighed myself and have only lost a pound! - i really felt i had started so well!