Maria: I wonder if I can substitute the buttermilk with almond milk! 
Maria: I am lactose intolerant!!
Joanne: buttermilk is usually used as a substitute for regular milk for lactose intolerance.
Maria: It is still made with milk though!
Maria: It should have lactose in it then!
Maria:  I am not touching milk products!!
Susan: Try one of the fermented milks but buttermilk should not bother you.
Maria is intolerant to lactose but she can safely use buttermilk or fermented milks.