Over 46% more! (Compared to our 20.6 oz powder when made as directed). 4 fl oz makes 16 more. Immune support. Brain development. Digestive health. 5 HMO prebiotics. Our closest formula to breast milk. HMOs are immune-nourishing prebiotics structurally identical to those in breast milk. No artificial growth hormones (No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows). No palm olein oil. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby.