Similac has EarlyShield: In addition to having DHA/ARA, we're the only formula that has Lutein, an important nutrient babies can only get from breast milk or Similac. It's especially helpful now, during critical brain and eye development. Brain & Eye: Lutein to support eye health & DHA/ARA for brain & eye development. Immune Support: Immune supporting nucleotides & Prebiotics for digestive health. Strong Bones: Exclusive palm olein oil-free fat blend supports excellent calcium absorption. For Common Feeding Issues Such As Fussiness and Gas If you notice common feeding issues such as fussiness and gas, usually the most sensible course is to continue feeding your baby the same brand of formula and not add further changes that can upset her system. However, if these common feeding issues continue, ask your physician about switching to Similac Sensitive Isomil Soy formula. Comfort Your Fussy Baby With Similac Sensitive Isomil Soy Soy baby formulas have been clinically shown to help reduce common feeding problems such as fussiness and gas. Ask your physician if Similac Sensitive Isomil Soy is right for your baby. Similac(r) Isomil(r) products have been trusted by moms and physicians for more than 40 years. Similac Sensitive Isomil Soy is kosher.