New ready-to-drink shake raises the bar with 30 grams of protein and 8 grams of prebiotic fiber to support muscle and gut health

DOWNERS GROVE, Ill., Sept. 24, 2026 /PRNewswire/ — Protein has been the wellness trend taking over headlines and social feeds for years, but fiber is gaining momentum as consumers look to add more of the nutrient to their diets. In fact, 31% of Americans say they are looking for options with more fiber compared to a year ago.¹ As a brand built on consumer-led innovation, Optimum Nutrition, a global leader in sports nutrition and part of Glanbia Performance Nutrition, is bringing these sought-after benefits together with the launch of its new 30G Ultra-Filtered Milk Protein Shake + Fiber. Featuring 30g of high-quality protein with 8g of prebiotic fiber to support muscle and gut health, the new shake is now rolling out to Amazon, TikTok Shop and select retailers across the country.

FIBER IS HAVING ITS PROTEIN MOMENT
Consumers are increasingly looking for more out of the food and beverages they choose and are trying to maximize benefits where they can. Fiber and gut health are gaining considerable attention alongside protein, yet nearly one-third of Americans fall below the daily recommended value of 28g of fiber per day². The new 30G Ultra-Filtered Milk Protein Shake + Fiber brings these priorities together in a convenient format without compromising the experience consumers expect from a great-tasting shake.

“Consumers are driving a really exciting change in the nutrition space, as their expectations for daily product benefits grow,” said Dave Lombardi, Senior Brand Manager at Optimum Nutrition. “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. The 30G Ultra-Filtered Milk Protein Shake + Fiber is a great example of this approach – bringing together the nutrition consumers are prioritizing with the creamy taste and convenience they want to come back to every day.”

MORE THAN A PROTEIN SHAKE
At the center of the new shake is ultra-filtered milk, which helps create a more protein-dense option³ while delivering the smooth, creamy texture and satisfying taste of a milk-based shake. Each shake is gluten-free, made without any artificial flavors, colors or sweeteners commonly used in other ready-to-drink protein shakes on the market and comes in three crave-worthy flavors:

• Chocolate: Blends rich milk and sweet cream notes with silky-smooth cocoa
• Vanilla: Pairs milk and sweet cream with classic vanilla taste
• Strawberry: Delivers a nostalgic flavor reminiscent of old-school strawberry milk with the taste of a sun-ripened strawberry

The 30G Ultra-Filtered Milk Protein Shake + Fiber debuts as Optimum Nutrition celebrates 40 years as a trusted sports nutrition brand for athletes and consumers around the world. With a continued focus on consumer-led innovation, Optimum Nutrition is committed to delivering new products that raise the bar and meet consumers where they are. For Optimum Nutrition partner and WNBA star Cameron Brink, the new shake reflects how she approaches nutrition both on and off the court.

“As an athlete, I’ve learned that fueling well is about looking at the full picture and giving my body what it needs to perform, recover and keep up with everything I ask of it,” said Brink.  “Protein has always been an important part of my routine, and I’m also paying attention to things like fiber and gut health. I love having something that tastes great and is easy to grab between practice, games and travel—it makes supporting my nutrition feel simple, even on my busiest days.”

Optimum Nutrition’s 30G Ultra-Filtered Milk Protein Shake + Fiber is now available as a 4-pack for $12.99 on Amazon and as a 12-pack for $39.99 on TikTok Shop and OptimumNutrition.com. The product will also be rolling out to select retailers across the country throughout the fall. For more information, visit OptimumNutrition.com and follow Optimum Nutrition on Instagram (@OptimumNutrition) and TikTok (@OptimumNutrition_US).

About Optimum Nutrition®
Part of Glanbia, Optimum Nutrition^® is the world’s #1 sports nutrition brand⁴ producing a wide variety of high-quality sports nutrition supplements and beverages to support an active and healthy lifestyle, including protein powders, ready-to-drink shakes and beverages, energy and hydration products, ready-to-eat bars, multivitamins and more. For over 35 years, Optimum Nutrition has set the standard for trusted products and proudly produces Optimum Nutrition Gold Standard Whey™, which is universally recognized as the world’s No. 1 selling⁵whey protein powder. Optimum Nutrition products are sold in 100+ countries around the world and can be found in specialty and mass retail stores, gyms and fitness centers, and online retailers. For more information, visit OptimumNutrition.com and follow the brand on Facebook, TikTok, Instagram, and YouTube.

About Glanbia
Glanbia is a better nutrition company headquartered in Ireland. Glanbia’s Performance Nutrition business is the world’s #1 sports nutrition company. Its mission is to inspire people everywhere to achieve their active lifestyle goals and its leading brands include Optimum Nutrition^®, think!^®, Isopure^®, Amazing Grass^®, and BSN^®, among others. Visit Glanbia.com to learn more and follow us on LinkedIn.

AI Summary

• Optimum Nutrition launches a new 30G Ultra-Filtered Milk Protein Shake + Fiber with 30g of high-quality protein and 8g of prebiotic fiber to support muscle and gut health.
• With more Americans seeking high-fiber foods and beverages, the 30G Ultra-Filtered Milk Protein Shake + Fiber answers the growing consumer interest in fiber and gut health, while still providing a great source of high-quality protein.
• Each ready-to-drink shake is made with ultra-filtered milk for a smooth and creamy taste, features no artificial flavors, colors or sweeteners and is designed for active, health-conscious consumers looking for convenient everyday nutrition.
• Optimum Nutrition partner and WNBA star Cameron Brink enjoys the 30G Ultra-Filtered Milk Protein Shake + Fiber as an easy way to prioritize protein and prebiotic fiber on the go.

¹Hull, Kristopher. “Americans’ Appetite for Functional Foods Varies Widely.” Ipsos, 22 May 2026, www.ipsos.com/en-us/americans-appetite-functional-foods-varies-widely. Accessed 26 Aug. 2026.

²International Food Information Council. “More Than a (Gut) Feeling: Americans Agree Gut Health Matters, But Not on What It Means.” International Food Information Council, 4 Aug. 2026, ific.org. Accessed 26 Aug. 2026.

³Barbano, D. M., and J. W. Sherbon. “Changes in the Chemical Composition During Ultrafiltration of Skim Milk.” Journal of Dairy Science, vol. 74, no. 4, 1991, pp. 1177–1184. ScienceDirect, https://www.sciencedirect.com/science/article/pii/S002203029178226X. Accessed 31 Aug. 2026.

⁴ Euromonitor International Limited; Consumer Health 2025 Edition, Sports Nutrition category, %retail value shares, 2024 data⁵ Euromonitor International Ltd; Retail Value Sale, more information including dates at https://www.optimumnutrition.com/en-us/claim

Ashley Papanikolas apapanikolas@glanbia.com

View original content to download multimedia:https://www.prnewswire.com/news-releases/optimum-nutrition-brings-fiber-into-the-protein-conversation-with-new-30g-ultra-filtered-milk-protein-shake–fiber-302888315.html

SOURCE Glanbia Performance Nutrition (NA), Inc.