Just reading in my trusty little book about metformin and it's action: "met works by reducing glucose production by the liver & increasing the uptake of glucose by the body (ie it increases insulin sensitivity). It has recently been found to work through a key enzyme essential to insulin action and cell growth. this is why it is so useful in treating women with pcos. In fact, even before a woman with pcos has achieved any significant weight loss, metformin can be effective in improving her other symptoms".
i was just reading a case study in the book, and got the idea from this. How did your low fasting insulin level compare to your glucose level taken at the same time, or was glucose level taken at the same time? The insulin level needs to be compared to the glucose level, as they are dependent on each other. so it could be that stand alone, the insulin level looks to be low, but how does it compare to the glucose level?
In regards to low gi diet:
"low gi diets have been proven to reduce blood glucose levels in people with diabetes. just like women with pcos, most people with diabetes are severely insulin resistant.
If glucose levels come down in diabetes, then it's likely a low gi diet will bring down both glucose and insulin levels in anyone with insulin resistance".
Congrats, you may have reversed your insulin resistance!!!! But make sure if they take you off met they check your levels again soon to see what happens just in case your body goes back into ir mode. i hope this makes sense and has helped a little!

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Dx'ed PCOS 6/08. BP meds since 8/08. Met 2000mg 2/3/09
5th cycle 50mg clomid 12/21 - O'd CD 23-24
BFP 1/24/09 ended in M/C on 2/23/09
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6th cycle Clomid 50mg 4/14/09 - No O
7th cycle Clomid 100mg 5/!!/09 - BFP 6/4/09!!
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