Greek Yogurt for Gut Health

Research suggests that Greek yogurt and its production by-products may offer certain gut health benefits, though the available evidence is limited and indirect. The single study identified is a narrative review from 2021 focusing specifically on acid whey, a liquid by-product of Greek yogurt production, rather than on Greek yogurt consumption itself. This review highlights that components found in acid whey, including proteins, bioactive phospholipids, and organic acids such as lactic acid, may have antibacterial properties and could support adult gut health, though the authors stop short of making definitive clinical claims. Given that the available evidence consists of one review article rather than controlled trials or meta-analyses, and that the focus is on a processing by-product rather than the yogurt itself, readers should treat these findings as preliminary and exploratory rather than established conclusions.