We generally recommend a transition period of 7-14 days to allow your baby's digestive system to completely adjust to a new formula, even if you are simply moving to another stage of the same formula brand. Gas, constipation, and fussiness are fairly common reactions to a new formula. Because of this, we recommend introducing the new formula gradually by slowly swapping bottles of the current or, 'old', formula with Kendamil, starting with the midday feeds first and not the feeds before bed. This schedule can be alternated a bit based on the number of feedings as some infants will feed for more or fewer feeds than indicated below:

  • Day 1: Feed 2 = Kendamil, remaining feeds are old formula
  • Day 2: Feeds 2 & 3 = Kendamil, remaining feeds are old formula
  • Day 3: Feeds 2, 3, & 4 = Kendamil, remaining feeds are old formula
  • Day 4: Feeds 1, 2, 3, & 4 = Kendamil, remaining feeds are current old formula
  • Day 5: All feeds = Kendamil

The number of feeds is based on Kendamil Classic Infant Milk's suggested feeding frequency in a 24 hour period for infants between 1-5 months of age.

You can switch to the new formula immediately and prepare all the feeds with the new formula on Day 1 (feedback from parents using Kendamil has shown that switching to all Kendamil bottles within 24 hours is feasible) However, for some infants, it might be easier for their digestive system to transition slowly as described above.

If you're considering switching formula stages, parents can switch to Stage 2 from Stage 1 when their baby is around 6 months old (babies younger than six months should only be fed Stage 1 baby milk). The general taste should remain the same but Stage 2 formula itself includes more vitamins and minerals for your baby's growing needs.