✦ fairlife & the Protein MachineNarrow moat

The best consumer-staples acquisition of the past decade cost almost nothing and sells milk. fairlife — a 2012 joint venture Coca-Cola took full ownership of in 2020¹ — filters lactose and sugar out and protein in, and rode two American obsessions at once: protein and the GLP-1 era, in which appetite-suppressed consumers are told to protect muscle by drinking exactly what Core Power sells. From roughly $10 million of sales in 2014 it has grown to about $4 billion a year at retail², and its refrigerated milk grew 28% in a category that grew 2%³.

The problem is the best kind: the plants are full. fairlife has run near capacity for years, so Coca-Cola is spending $650 million to expand the Coopersville, Michigan facility — two new lines, 245,000 more square feet, production starting in 2028 — with management planning roughly 30% more capacity across three to five years. Until the concrete cures, growth is literally rationed.

The bet's quiet significance is architectural: fairlife is a value-added, refrigerated, capital-intensive business — the opposite of the concentrate model — and Coca-Cola is choosing to own it anyway, because the margin lives in the brand and the science rather than the syrup. Watch two things: whether the 2028 capacity lands on schedule, and whether growth is still running hot when it does. A protein brand at scale, capacity-unconstrained, would be the company's biggest organic growth engine; a fad that cools while the plants rise would be a very modern way to relearn an old lesson.