Muscle Milk Overhauls Protein Shakes with Ultra-Filtered Milk, Targeting Mainstream Consumers

Event summary

  • Muscle Milk, a PepsiCo brand, has reformulated its protein shakes using ultra-filtered milk, eliminating artificial sweeteners, flavors, and added colors.
  • The new formula delivers 26-42g of complete protein per serving and is available nationwide starting May 15, 2026.
  • The launch is accompanied by a partnership with rugby medalist Ilona Maher and a 'Protein for All' campaign.
  • Muscle Milk is positioning the reformulation as a response to consumer confusion about protein intake, citing a survey where 73% of Americans recognize protein's importance but 66% are unsure of daily consumption needs.

The big picture

Muscle Milk's reformulation reflects a broader industry trend toward cleaner, more transparent ingredient lists in protein products. As consumer demand for high-protein, low-artificial-ingredient options grows, PepsiCo is positioning Muscle Milk to compete with both traditional protein brands and emerging plant-based alternatives. The partnership with Ilona Maher and the 'Protein for All' campaign signal an effort to rebrand Muscle Milk as accessible to everyday consumers, not just athletes.

What we're watching

Market Differentiation
Whether Muscle Milk's emphasis on ultra-filtered milk and cleaner ingredients can distinguish it in a crowded protein shake market.
Consumer Adoption
The pace at which consumers shift from artificial to natural ingredient preferences in protein products.
Brand Expansion
How effectively PepsiCo leverages Muscle Milk's reformulation to appeal to a broader audience beyond traditional fitness enthusiasts.