Slimmer - as you know I am far from expert on slin/diabetes but have been doing alot of reading here lately.

My uneducated opinion is that a skinny BB would not want to be insulin resistant as insulin is what carries protein and glucose to our muscles resulting in hypertrophy. If the cells become resistant then the glucose and protein stay in the bloodstream, unused by the muscles that need them and therefor unable to grow. I think the weight gain results from the fact that the nutrients are not carried to or absorbed by the muscles that need them which results in overeating due to never feeling satiated.

Someone please correct me if I'm wrong - I'm slowly trying to learn more about this.