My youngest was on it for 2 years, smells vile, don't leave a half drunk bottle in your car!! Charlotte failed to thrive on cows and soya so they prescribed it and she was able to tolerate it. Started weaning her off it at 2 1/2 and she is ok now, a bit petite, she has enamel problems on one of her teeth but I'm not sure if its related. She also doesnt really like dairy produce now such as cheese and wont drink milk. Want to know anything else, please feel free to ask!