Jason Mancuso and Team Musclesport: Lean Whey, Flavor-First Protein, and Building a Brand from the Ground Up

0:00 – Introductions

Ben opens the episode from Musclesport HQ in Long Island, New York, introducing founder and CEO Jason Mancuso, Kate Christensen, and EVP/CMO Robert Oberholzer. Jason starts with the origin story: getting fired from McDonald’s in 1993, stumbling into a job at a natural food store, and eventually becoming the youngest GNC manager at 18. From there, he moved into the Vitamin Shoppe’s Northeast expansion, then distribution, then manufacturing. By the early 2000s, he was running production at a contract plant where clients routinely asked for the cheapest possible product, regardless of quality.

That frustration drove everything. “I just, I don’t like this for me personally,” Jason explains. In 2008, he started Musclesport with a test booster, a beta-alanine product, and a pre-workout: all things he’d actually take himself, all made to taste good at a time when the industry hadn’t figured out that flavor mattered.

3:00 – Grinding to Build the Brand

The first four years of Musclesport were essentially a hobby. In 2012, Jason broke away from his manufacturing partner and started running the brand full-time, with his own production facility running alongside it. He describes the next decade as constant, TV-free grinding. “I probably don’t remember any TV shows for the last 10 years.”

From 2008 through roughly 2020, Musclesport ran a strict brick-and-mortar-only distribution model. Jason built his own distribution operation, called Elite Distribution, and sold exclusively to retail stores rather than online, a deliberate choice to protect retailers from the price wars that typically erode online supplement sales. “I wanted to support the brick and mortars,” he says, and it worked: Musclesport became one of the larger brick-and-mortar-only brands during that stretch. It was guerrilla marketing at its core: one store owner telling another, “great product, you can make good money with it.”

7:00 – Kate and Rob Join the Team

Jason introduces Kate Christensen, who he met in late 2020. Two months after their first date in Little Italy — where Kate tasted rainbow Italian cookies at a café called Ferrara’s and asked why he hadn’t done a flavor like that — she moved from Idaho to Long Island and started helping out at the office. Her impact was immediate. Jason credits her with transforming Musclesport into a customer-service company. “She turned us into a customer service company,” he says. Kate describes her role as covering flavor development, customer service, sales, logistics, ambassador management, and more (including driving the box truck). “I’m Jay’s left-hand man.”

Founder and CEO of Musclesport, The Supp Chef Jason Mancuso

Robert Oberholzer joined in 2024 as EVP and CMO after a career spanning MAN Sports, Giant Sports, retail, ingredient suppliers, and two separate brand agencies. He and Jason had been friends since 2022 before Rob came on full-time. “It felt natural from the start,” Rob says. “It’s kind of like working with your brother.” His focus coming in was building the direct-to-consumer business and helping Musclesport scale while maintaining the family atmosphere that had made the brand feel real to customers.

11:00 – From Distribution Model to Omnichannel Brand

COVID changed the equation for Musclesport. As buyer habits shifted dramatically online between 2020 and 2021, Jason kept supporting brick-and-mortar retailers but started building the direct-to-consumer side from near zero. By the time this conversation took place, D2C had grown to roughly 50% of the business. Retail hadn’t shrunk to make room for it. Both channels were growing simultaneously.

Rob describes the challenge of building across channels as “conducting an orchestra,” making sure every instrument is rising together, not just the loudest section. Ben and Jason both credit a demand-first philosophy: instead of pushing product into stores and letting retailers figure it out, Musclesport started creating enough consumer pull that retailers began ordering proactively. “When Rob came in, all he did was stress demand,” Jason says. “People started going into the stores looking for Musclesport.” Today, when a consumer sees Lean Whey on TikTok six times in a month and then walks into a store, they recognize the bottle immediately. That omnichannel flywheel is working.

19:00 – Rob’s Background and the D2C Push

Rob walks through his career arc: retail out of college, a stint at MAN Sports, back to retail, then Giant Sports, an ingredient supplier, and eventually two brand agencies focused on e-commerce and growth. His background gave him a data-driven perspective that complemented Jason’s production and flavor expertise. Jason explains what he was looking for: “someone who is probably equal to me in terms of being a lunatic as far as being a workaholic, but finding some balance in life as well.”

The conversation touches on how the old distribution model was built entirely on push: call as many stores as possible, negotiate deals, and once the product was on the shelf, it was the retailer’s problem. What’s changed is the pull side. Musclesport now generates enough consumer demand that retailers feel urgency around new flavor launches. Rob sums up the flywheel effect: “Once you have people that are accustomed with the brand, have tried 1 to 2 products and we retain them, they become advocates for the brand.”

24:00 – Content, Community, and Why the Brand Feels Real

As Musclesport started showing up on social media with skits, behind-the-scenes content, and the personalities of the team itself, something shifted in how people related to the brand. Rob explains that putting the people behind the brand out in front of customers — imperfections and all — creates authentic resonance that polished influencer content can’t replicate. “When you’re not being authentic, you can feel it,” he says. “The consumer feels it.”

Ben points out that what makes Musclesport’s approach work is its relatability. Jason and Kate don’t project an unattainable lifestyle. They cook cheesecake at home (with 60 grams of protein per slice), sit in the sauna in the morning, eat sushi and tacos and talk about it openly. “We’re not doing that,” Jason says of brands that sell aspiration through famous influencers. “We’re saying you could be more consistent with your goals if you take our product because you’re going to enjoy it and you’re going to see results.” The lack of polished perfection is a feature, not a bug.

30:30 – How Lean Whey Got Cereal Flavors First

The flavor story starts around 2013 or 2014. Jason went to a restaurant, tried a fruity cereal crème brûlée, and came in the next day and started building something with that as the starting point. The result was Lean Charms — and the finishing touch was adding actual cereal marshmallows to the protein. Musclesport may have been among the first to do that, and the response was mixed. “Who’s putting marshmallows into a protein product?” Jason remembers the criticism. The answer: less than 1 gram, or under 1% of the formula, but the experience felt real in a way that nothing else in the category did at the time.

That experiential philosophy runs through everything Lean Whey has become. Where most isolates were thin and watery, Jason added MCT fats, gums, and other texture modifiers to give Lean Whey a milkshake mouthfeel, even mixed with water. The inclusions (cookie pieces, marshmallows, cinnamon flakes) are never more than a gram but change the entire experience. Kate adds that her insight on the rainbow Italian cookie flavor came directly from their first date in Little Italy. “She basically said, why don’t you do a flavor like this?”

34:30 – Lean Whey Becomes the Core of the Business

Before 2020, Lean Whey was about 40% of Musclesport’s revenue. Significant, but Jason had always been wary of becoming a protein-only brand. Protein is expensive to manufacture, costly to ship, and inventory-intensive. He kept trying to build a more balanced mix of pre-workouts, aminos, and pills. But as early as 2015, people recognized that Lean Whey was probably the best-tasting protein on the market with the Lean Charms cereal flavors.

The turning point came in 2021, when fitness content creator Ryan Bucky (Fitness Informant) pushed Jason directly: you’re the best flavor guy in protein, why aren’t you going all in? Jason had been sitting on over 100 formulas, ready to launch. He describes himself as “the Tupac of formulators” — so much unreleased work just waiting. COVID had closed one of his other businesses. He’d been through a divorce. His dogs had died. “For Ryan to say that to me and kind of like, you’re the best man, what are you sulking over?” He decided to make a scene. From 2022 into 2024, Lean Whey became the brand people talked about every single month — a new flavor, always something worth covering.

38:30 – Protein’s Rise and Retail Strategy

The protein category has had a remarkable run. It went from a product surrounded by kidney damage myths to a mainstream staple, and updated U.S. dietary guidelines now point toward consuming more protein. Ben and Jason agree that the conversation around protein safety is largely settled, while the category has exploded far beyond the old gym-bro audience.

One of Musclesport’s smartest retail plays has been the relationship between product volume and shelf presence. When you sell a lot of flavors, you take up more wall space. There’s a wall of your product when you walk into a store, offering immediate recognition and a visual signal that this brand is doing something. Jason contrasts this with a best-in-class fat burner that might sit as a single bottle on the shelf. “Pills pay the bills to some degree,” he says, “but recognition is real.”

41:15 – CreaM’D Rice: Applying the Lean Whey Playbook

The CreaM’D Rice launch came out of watching the cream of rice category grow in Europe before it caught on in the U.S. Jason wasn’t initially sure the format would translate stateside. Then he started seeing cream of rice brands performing well, and made the connection: his flavor systems were perfectly portable to a new base. He asked his ambassador community for input and got immediate enthusiasm. The launch was straightforward, and the product quickly became Musclesport’s second-best seller.

The decision to sell it unflavored (with only Musclesport’s flavor systems) rather than as a high-protein cream of rice was deliberate. It lets customers customize the protein ratio themselves — mixing in a scoop of Lean Whey to hit their own macros — and creates a layered experience. Musclesport also brought inclusions to cream of rice, which had never been done in the category. Less than a gram per serving, but the experience tells a completely different story.

45:00 – Building the Community Flywheel

Rob breaks down what community-building actually looks like at Musclesport. Kate and fellow team member Randy engage with ambassadors personally and directly — answering questions in real time, having genuine conversations about flavors and goals. “When you have people that really are advocates for the brand just because they truly like what you’re doing,” Rob says, “that’s seismic.” It’s word-of-mouth marketing, and it’s the most sincere form.

Ben describes the flywheel: early coverage from PricePlow and Fitness Informant spins up organic ambassador content, which drives retail orders, which gets new consumers trying it, who then become ambassadors themselves and start buying multiple flavors. Kate stoking the fire in those community channels keeps the whole thing burning. That flywheel is what makes Musclesport’s customer retention so strong. Jason points out that with 40-plus flavors available, once someone finishes one tub, there’s always something new to try next. “Why do they ever want to leave us?”

50:00 – Authenticity, AI, and the Value of Being Imperfect

The episode takes an interesting turn as Ben, Jason, and Rob discuss what authenticity means in a landscape where AI-generated content is everywhere and perfection is becoming the norm. The consensus is that imperfection and analog texture are more valuable than ever. “The consumer feels it” when a brand isn’t being real, Rob says. Seeing the people behind a brand go through struggles — a difficult divorce, a closed business, a near-drowning in the Virgin Islands — and come out the other side creates genuine emotional resonance that no polished influencer campaign can manufacture.

Jason’s philosophy on customer consistency applies here too. “We’re saying you could be more consistent with your goals if you take our product because you’re going to enjoy it.” That’s a different message than aspiration. It’s permission: you don’t have to be perfect to show up and train. And in a supplement industry full of unattainable physiques and maxed-out macros, that message lands.

54:30 – Formula Philosophy and Simplification

Jason reflects on how his approach to building formulas has changed since his manufacturing days. Back then, he loaded products with complex stacks of ingredients. As a manufacturer, he could buy 25 kilos of a raw material and use it across everything. That’s not how it works when you’re a brand relying on contract manufacturers. You’re asking someone else to source ingredients, and carrying too many obscure materials becomes a liability for your manufacturing partner.

His response has been thoughtful simplification. Lean Whey is designed to be the best-tasting whey protein you can find, with a fat-metabolizing matrix that adds functional value without complicating the pitch. The creatine hydration product tackles two trending categories in one clean product. A new Synergy multivitamin powder goes beyond a standard multi — gut health, brain health, broad coverage — but stays approachable. “Keep it simple,” he says. The science is there if you dig for it, but you don’t have to. The goal is getting into customers’ daily routines.

57:00 – Pre-Workout Creativity, Transparency, and Where Things Are Headed

Ben raises a provocative point: the push for full transparency on supplement labels may have inadvertently killed creativity. When TikTokers grade products against a rubric of expected doses, there’s no room for the kind of intuitive formulation that produced Lean Charms. If your Dubai Chocolate flavor uses some almond to achieve the right note alongside pistachio, someone in the comments will claim you cut corners. “There’s no freedom to formulate,” Jason says.

Rob extends this to pre-workout: at a certain point, 8 grams of citrulline versus 7 grams of citrulline plus VasoDrive just becomes noise. The real differentiation in supplementation often comes from the total experience and consistency of use — and that’s where Musclesport has always competed. Their PreLean Revolution pre-workout reflects a complementary-stack philosophy: MitoBurn, GBB, MCTs, and fiber working together across the Lean Whey and PreLean lineup in ways that make the whole greater than the parts.

1:01:30 – Retail Exclusives, the Flavor Vault, and Coming Launches

See all Musclesport supplements on PricePlow

One of Musclesport’s most effective retailer-relationship tools is a retail-exclusive flavor: White Chocolate Peanut Butter, which Jason describes as one of their best flavors, is available only in brick-and-mortar stores. No website listing, no Amazon. Retailers are given a week or two lead time before any new flavor launches online, so shelves are stocked before D2C demand kicks in. “We still want to support the brick and mortars,” Jason says. “We want to push customers there.”

The Flavor Vault is a Black Friday tradition: throughout the year, Musclesport sets aside small quantities (72 to 144 bottles per flavor) of limited-edition and seasonal flavors. When Black Friday arrives, the vault opens. It’s a mechanism for manufacturing FOMO on seasonal flavors and giving customers one last shot at something they missed. “We have 50 flavors on our website,” Jason notes. The vault is how they stay true to the limited-edition model while also rewarding customers who plan ahead.

For what’s coming: Musclesport was heading to the Arnold Classic to debut Rhino Sport, their new pre-workout. There’s also a mystery second Arnold launch in the works (with a $20 internal bet on whether it happens), seasonal flavors dropping in March and April, and what sounds like an April Fools’-adjacent product that started as an inside joke. Ben also teased upcoming video content around protein flavors filmed at Musclesport HQ.