My granddaughter is 10 month old ..and we have used it consistently since she was 3 month and the mom stopped breast feeding ..she is at 95 procentile weight height and head circumference..here lately she is loosing weight because of not drinking as much formula...and eating more ..baby food ..we feed mostly ..earth best baby foods fruits and vegetables and some meat dinners ..we never bought the dha ara supplement that nature one supplies ...we just feed the regular dairy formula ...i do feed her an eggyolk at lunch at least every second day ...she is about two weeks to a month ahead in what babies need to do ..at the appropriate ages ....