Don't worry about white feather, they lose them all year, I'm really sorry no one can begin to answer your weight question until we know the weight in grams, you should be weighing daily. Walmart sells a digatal scale for $20.00. Whats more important is the weight constant? With no scale, we don't know!!! Now, this work's, get some organic or natural peanut butter, it has palm oil in it, Skippy's, Laura Scudder's, Smith/Krogers etc, give 1/2 teaspoon twice a day, if the baby won't eat it off a spoon, put it on a small piece of wheat bread,[small] or pasta......Jayd