I really think it must increase your fertility. I am not supposed to be ovulating and here I am with periods! (I'm like a peacock strutting around with pride when I think of it!)
I believe, correct me if I'm wrong, that it's to do with blood sugar. LT stabilises your blood sugar and less insulin is produced, and that corrects any hormonal imbalances. If there's problems when I try for a baby in a couple of years I might jump on LT for a few weeks before going through IV. I've heard of people concieving on atkins. I'd need to suss out the risks associated with IV vs conceiving on LT.
Guen