I don't know if this will help but it's my own experience. I am fairly slender but wanted to lose a few gained pounds so my pants would be more comfy. I actually gained weight (heresy!) thinking I would not have to watch my intake. I find that I must indeed watch my calories as well as limit carbs. ..especially since you sound like you never ate many carbs anyway you may not benefit as much as if you were insulin resistant to any degree. Anyhow, my lipid panel was so totally great compared to my past ones, that I am a devout low carber.