This formula's own materials are direct about this: expect a short adjustment period, with mild gas or gurgling in week one being normal as your gut bacteria adjust.
Rather than promising a completely symptom-free start, this formula's own materials name a specific, temporary adjustment period directly — worth reading as a more honest baseline than an unqualified comfort claim.
Stay consistent through the first week per the brand's own guidance, and contact customer support if symptoms feel more than mild or don't ease up after the described adjustment window.