High levels of IGF-1 and recurrent IDC

bamboogirl

hi there, I have a recurrent tumour after getting a lumpectomy in 2010. I've had my IGF-1 tested 3 times in the past 2 years and the reading is out of range, and quite high. My doctor was aware enough to order to test for me, but her knowledge is limited as to what I should do about it. There are many reports online that suggests IGF-1 will encourage cancer cells to grow.

There are some suggestions online to reduce it, such as eliminating dairy, eating less fat, fasting 2 days a week, or possibly taking Metformin.

Before I embark on any attempts to reduce this, my question is: has anyone out there dealing with a breast cancer diagnosis found that they had high levels of IGF-1, and, if so, were you able to bring the levels down? What methods worked for you? 

Thank you all for any insight.