Protein's long run as the dominant functional nutrient in ready-to-drink beverages is getting company. Optimum Nutrition, the Glanbia Performance Nutrition brand that holds the top global sports nutrition ranking, has launched its 30G Ultra-Filtered Milk Protein Shake + Fiber — a single-serve RTD that stacks 30 grams of high-quality milk protein with 8 grams of prebiotic fiber. The product is rolling out now on Amazon and TikTok Shop, with select retail distribution planned throughout fall 2026.
The Consumer Demand Signal
The dual positioning isn't arbitrary. According to Ipsos research cited by the brand, 31% of Americans are actively seeking higher-fiber food and beverage options compared to a year ago, while data from the International Food Information Council indicates that nearly one-third of Americans fall below the recommended daily intake of 28 grams of fiber. For operators, retailers, and foodservice buyers tracking functional beverage trends, those numbers represent a significant white space that mass-market protein shakes have historically left unfilled. Optimum Nutrition is betting that combining both nutrients in a single, convenient format will resonate with consumers who don't want to manage separate supplements for protein and gut health.
Product and Channel Details
The shake is built on ultra-filtered milk — a process that concentrates protein while delivering the smooth, creamy texture associated with traditional milk-based drinks. The product is gluten-free and formulated without artificial flavors, colors, or sweeteners, a clean-label profile that has become table stakes across the better-for-you sports nutrition and beverage segment. It launches in three flavors: Chocolate, Vanilla, and Strawberry, with the Strawberry positioned around a nostalgic strawberry-milk profile. Retail pricing is set at $12.99 for a 4-pack on Amazon and $39.99 for a 12-pack on TikTok Shop and OptimumNutrition.com.
The launch also marks a channel strategy worth noting for food and beverage industry observers: leading distribution through e-commerce and TikTok Shop before expanding into brick-and-mortar retail positions the brand to generate early velocity data and social proof before committing to broader shelf placement. WNBA star Cameron Brink serves as a brand partner for the product, adding an athlete-endorsement layer designed to anchor the gut-health message alongside the performance narrative.
"Protein will always be core to who we are as a brand, but we are committed to growing and evolving with our consumers as their needs and routines change too," said Dave Lombardi, Senior Brand Manager at Optimum Nutrition. The launch coincides with the brand's 40th anniversary in sports nutrition, and reporting from Food & Beverage Magazine has tracked how legacy supplement brands are accelerating RTD innovation to capture consumers who now shop for daily-use nutrition products alongside traditional grocery items.
For buyers and category managers in the functional nutrition and foodservice channel, the practical signal here is that the protein-plus-fiber combination is moving from specialty supplement positioning toward mainstream RTD territory — and Optimum Nutrition's retail rollout this fall will serve as an early read on whether that crossover demand holds at the shelf.
Written by Michael Politz, Author of Guide to Restaurant Success: The Proven Process for Starting Any Restaurant Business From Scratch to Success (ISBN: 978-1-119-66896-1), Founder of Food & Beverage Magazine, the leading online magazine and resource in the industry. Designer of the Bluetooth logo and recognized in Entrepreneur Magazine's "Top 40 Under 40" for founding American Wholesale Floral, Politz is also the Co-founder of the Proof Awards and the CPG Awards and a partner in numerous consumer brands across the food and beverage sector.
