Our little guy was born premature at 29w5d. For this reason, breast feeding didn't work out for me. The Similac formula at the hospital was destroying our little guys stomach. Felix was able to come home after 68 days and we switched him to Little Oak right away. The difference has been incredible. Our little guy is no longer grunting and groaning in agony after eating from reflux. We are all so thankful for Little Oak, and I feel confident feeding this to my baby. The customer service is personal, and thoughtful. Shipping has been excellent. Worth every penny. His smile says it all. xx