I'm hoping that you all can help. My nephew is 15 mos. and has always been slight in build, but his continued extremely slow weight gain is of increasing concern. His height and head circumference are normal, but his weight has dropped off the growth charts completely. He gained .5 oz. between his last 2 checkups (3 mos. apart). I know that he still nurses a bit (though I'm not sure how much). He eats a variety of things, but just isn't gaining. My sister was advised to push fat as much as she can (like the Dr. said to give him cream to drink). Can anyone think of helpful foods for him (or alternatively, avenues they should be looking at for his health).