If you run a high-protein consumer brand in 2026 and you are not actively pursuing a Costco placement, you are leaving your most important opportunity on the table. The protein trend at Costco is not new — consumer appetite for high-protein products has been building since 2023 — but what is happening inside Costco's warehouses right now in mid-2026 represents a genuinely exceptional commercial window. Buyer receptiveness is high, the category is expanding visibly across mult