Lactase-Assisted Control Trial On Weight GAin in INfants.

The lactase drops that will be used in the study will be Delictase®, which is a dietary supplement that helps the proper digestion of lactose through its breakdown. Delictase® lactase drops offer an exogenous source of the lactase enzyme, which is essential for the proper absorption and digestion of lactose, can be administered from birth, mixed into the administered milk and contain high levels of lactase (\>3,000 ALU\*). The supply of Delictase® lactase preparations will be carried out by Galenic Pharmacy, every 2 months at the study site.