Shark Tank ENERGYbits Update 2026

Catharine Arnston was looking for a high-protein, low-calorie snack to boost energy and performance, but nothing on the market worked. So, she created ENERGYbits, an algae-based tablet loaded with nutrients for a natural energy boost. Made for athletes and health-conscious people, these tablets help users stay at their peak. Will the sharks offer her a deal? Find out in our ENERGYbits update and pitch recap.

If you’re short on time, here’s a quick overview of what happened to ENERGYbits after Shark Tank.

Catharine appeared on Shark Tank Season 8 to pitch ENERGYbits, seeking $500,000 for 5% equity. After her pitch, she left without a deal, as the sharks were unimpressed about the lack of profitability.

In terms of an ENERGYbits update, the company expanded its product line, secured distribution through major retailers, and has grown to around $4 million in annual sales.

Shark	Result
Daymond John	No offer
Robert Herjavec	No offer
Lori Greiner	No offer
Mark Cuban	No offer
Kevin O’Leary	No offer

Shark Tank ENERGYbits Pitch

Entrepreneur: Catharine Arnston
Business: Natural energy booster
Ask: $500,000 for 5% equity
Result: No deal
Sharks: None

Catharine started her pitch by giving the sharks samples of her energy products.

Plant-Based Algae Superfood

ENERGYBITS - Organic Spirulina Tablets

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She explained to them that she founded ENERGYbits with the goal of providing a quicker, easier way to stay healthy and energized.

With the investment, she planned to manage her company’s growth and expand its reach by tapping into a shark’s expertise.

ENERGYbits offers algae-based tablets designed to boost energy, enhance mental focus, and improve overall wellness.

The company emphasizes quality and sustainability, sourcing algae from freshwater tanks to avoid ocean pollution.

The tablets are made from 100% organic, non-GMO spirulina and chlorella algae, packed with nutrients.

ENERGYbits stands out for its high protein content—64% more than animal sources—and its wide range of essential vitamins, including A, B1, B3, B6, B12, C, E, and K.

These features make the tablets attractive to athletes, professionals, and health-conscious consumers who are looking for a natural energy boost that supports muscle recovery and mental clarity.

The sharks had mixed opinions on the tablets—some found the taste acceptable, while others didn’t.

Additionally, most were already doubtful about the health claims behind the product.

Mark Cuban asked for specific evidence, but Catharine struggled to provide a convincing answer.

She went on to say that it costs $40 to produce a large bag of ENERGYbits, which sells for $115—resulting in a 188% profit margin.

Since she began operation six years ago. So far, the company has generated $1.5 million in sales, with $300,000 made the previous year.

However, Catharine acknowledged that the company hadn’t turned a profit, as all earnings were reinvested into the business.

Kevin O’Leary decided to exit the negotiations, stating that no investor would want to invest in a business that wasn’t making a profit.

Mark agreed to Kevin’s concerns and also opted out.

Lori Greiner felt the packaging was misleading. She’s out.

Daymond John followed as well.

Robert Herjavec said Catharine seemed more focused on advocating for algae than running a business, so he, too, declined to make an offer.

Let’s quickly get an ENERGYbits update after Catharine’s appearance on Shark Tank.

Shark Tank ENERGYbits Update

Our ENERGYbits update found that despite not getting an offer from any of the sharks, Catherine continued to promote ENERGYbits across various podcasts, including “Midlife Conversations” and “The Dr. Gundry Podcast.”

The product also gained attention in major publications like Vogue and Cosmopolitan.

In 2019, ENERGYbits faced some scrutiny by the National Advertising Review Board, which is part of the Better Business Bureau. It raised concerns about the lack of human clinical studies supporting the health benefits of algae tablets.

The board also found the company’s environmental claims to be overstated.

By 2021, our ENERGYbits update found that it had expanded its reach beyond its website to retailers like Amazon, Walmart, and other health-focused stores.

The product line also grew, offering four versions: Energy, Recovery, Vitality, and Beauty.

Prices range from $65 for small bags of 360 tablets to $150 for canisters of 1,000 tablets.

At the time of writing our ENERGYbits update, the company had grown to around $4 million in annual sales and was available in high-end retailers like Nieman Marcus.

Furthermore, Catharine has appeared on the “Integrative Cancer Solutions” podcast, maintaining her dedication to promoting algae-powered health.

We’re calling this ENERGYbits update a success.

For more on Shark Tank Season 8 Episode 9, be sure to check out:

Before you go, check out our Shark Tank Season 8 page for more updates.

Andrew Smith

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Andrew is a lifelong fan of Shark Tank and an entrepreneur at heart. He started Shark Tank Recap because he wanted a single place to track what happens to the companies, founders, and deals after they air on TV. With a sharp eye for business insights and a passion for all things Shark Tank, Andrew makes sure every recap is accurate, engaging, and fun.