My daughter had the same problem. I ended up giving her Acidophilus supplements ( which has all the nutrients and probiotics of yogurt without the allergic reactions) and upped her calcium intake with other food sources in her baby food.
Remember, the key nutrients in Milk is Calcium, Potassium and Vitamin D, so, there isn't really a WHOLE lot there, by adjusting her diet in other ways, you can successfuly give her the right balance of nutrients she needs. My daughter is extremely healthy, she is 4 now and has only needed to see a doctor outside of her regular checkups twice. Yes... TWICE.
Besides, seriously, Soy, especially Soy grown in the US is full of harmful hormones that cause premature puberty and other health issues in children-- which is why, no other country in the world will accept american based soy in their countries.
Feel free to call me if you would like more information on how I helped my daughter get the right balance of nutrients without the help of formula.
P.
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