Both her
weight and height are below the 5th percentile
for her age. Was she born premature or the females in the family petite? She is under the normal weight for her age, however, if she has been gaining weight at a steady rate (even if it has been slow) she maybe just small in stature. If not, then she would be underweight. Soy base formula is given to infants so she can have soy milk, soy yogurt, soy ice cream.