Yep, it has done it for me. I am trying to have snacks and things on top of regular meals now. Included some desserts now and again to prompt some extra eating. Have been as low as 95lbs and now 97, have never been this low my entire adult life. I am also 5'2". People are telling me I am too thin now, asking if I am well. I haven't been doing running either. I really need to get more muscle and get serious about working out. I am eating lots of meat, fruit, veg, and fat everyday. So you sound similar to me really.
Started Primal June 2012 at 148.5lbs, and 5' 1", reached goal weight in 5 months.
Lowest weight 93lbs - too thin. Now stable at around 100lbs much better weight for me at my age.
Primal, minus eggs, dairy and a myriad of other allergens.