Check out my blog post
http://chasing-truth.blogspot.com/2010/07/probiotics.html
this the brand my youngest liked at 2 years old http://www.amazon.com/NSI-Probiotic-Tabs-Kids-Strawberry/dp/B0046HKALC/ref=sr_1_5?ie=UTF8&s=hpc&qid=1308343602&sr=8-5
he would get one in the morning and one at night
blessings,
missa