My experience with a combination of lchf with and without medicine is mixed. Without medicine FBS was not coming under control. The medicine I was taking viz. Glynase MF combined with lchf was giving good control but frequent bouts of low sugar which was Scary. This was the case even with reduction of medicine upto 1/4th. The knowledge that glynase whips up pancreas to secret insulin for 8 to 10 hrs irrespective of need of insulin made me switch over to Metformin alone (this was also suggested by Medfree). Now on 500 mg glycomet twice good control after 15 Days no fear of low sugar. Will go for reduction in medicine in a weeks time. Hope this is useful. Personal details: Age 62, 5' 9" 52 Kgs (thinly built) type 2 For 13 years. Always under moderate control, no other complications.
PS: Lost 2.5 KGS with lchf diet, trying to make up.