The initials DHA stand for docosahexaenoic acid, a long-chain polyunsaturated fatty acid, which belongs to the omega-3 fatty acids. DHA is produced by microalgae and exists in all animals that feed on these algae, for example Salmon. Omega-3 fatty acids exist naturally in breast milk. However, the amount depends largely on the mother's diet. To ensure that babies who are not breastfed also receive enough DHA, it is added to infant formula in the form of fish oil. Omega-3 fatty acids contribute to the development of the brain and nervous tissue, as well as to the visual development of babies.