My wife is petite, and sheds weight with mild exercise. She’s recently started lift light to medium weights, for her. She’s shedding weight rapidly 9genetics) and wishes to try and build/retain some size for her new muscles. She’s started eating a bit more in calories, which is an obvious answer, but is looking for good supplements, to pair the effort with.
Also, I have her on a morning dose of DHEA, and she takes the T Nation BCAA after her workouts.