Momentous partners with Arnold Schwarzenegger on a back-to-basics supplement stack

Arnold Schwarzenegger has partnered with Momentous to launch The Arnold Stack: a curated trio of supplements he uses daily. The stack focuses on foundational products backed by decades of research rather than trendy formulas or proprietary blends.

What’s inside The Arnold Stack

The Arnold Stack focuses on three foundational supplements backed by decades of research:

• Whey Protein Isolate
• Fiber+
• Creatine
• Vitamin D3

The stack reflects Schwarzenegger’s long-held philosophy that the basics, done consistently, beat flashy shortcuts every time. Each product carries NSF Certified for Sport certification, meaning they’re tested for banned substances and label accuracy.

Arnold Schwarzenegger has partnered with Momentous.

“I’ve seen every fitness trend come and go,” Schwarzenegger said. “Trends don’t build greatness. What actually works has never changed: committing to the basics and doing them well and consistently.”

“Arnold’s choice to partner with Momentous validates what our customers, elite athletes, and military partners already know,” said Jeff Byers, co-founder and CEO of Momentous. “Our commitment to quality is unmatched.”

Back to basics as brand positioning

The partnership signals a push against supplement overcomplexity. While the industry increasingly leans on proprietary blends and hyper-specific formulas, Schwarzenegger and Momentous are doubling down on the compounds with the most research behind them.

Where to buy

The Arnold Stack is available now for $102.85 at livemomentous.com/arnold-schwarzenegger. Subscribers save 25% on their first purchase.