ENERGYbits Shark Tank Update – Shark Tank Season 8

Catherine Arnston pitches ENERGYbits, algae-based nutritional supplements, on Shark Tank Season 8. She walked away without the deal.

By Rob Merlino  |  Last updated: July 9, 2025

energybits

Catherine Arnston hopes the Sharks like algae when she pitches ENERGYbits, her algae-based nutritional supplement tablets, in Shark Tank Season 8 Episode 9.

Check out other Shark Tank Season 8 Episodes.

About ENERGYbits

Category Details
Business Name ENERGYbits
Founder Catherine Arnston
Industry Nutritional Supplements
Product Algae-based snack tablets
Deal Status No Deal
Investment Asked $500,000 for 5% equity
Valuation $10 million

ENERGYbits are small algae tablets that you chew or swallow. They provide people with a high-protein, high-performance snack food that is 60% protein. All ENERGYbits are 100% organic, 100% natural, 100% green, and 100% non-GMO.

In the early 1900s, German scientists discovered algae that had the highest concentration of protein in the world and could be used as food. Algae-based foods were used by Germany to prevent mass starvation after WWI and again by the Japanese after WWII.

Arnston started the business in 2008 to create a healthy, low-calorie snack. The product gives athletes instant energy and endurance, stops hunger, helps with weight loss, helps prevent colds and hangovers, speeds muscle recovery for athletes, reduces high blood pressure, diabetes, and other illnesses.

The company is expanding nationally and internationally. She likely wants a Shark to help with managing growth. Will the Sharks like algae?

Video

ENERGYbits Shark Tank Recap

Catherine enters and immediately starts telling her story. Mr. Wonderful had asked what she was looking for in an investment. Catherine is seeking $500,000 for 5% of her business. She hands out samples, and the Sharks, with the exception of Robert, don’t like the taste.

When Mark questions the health claims, Catherine fumbles with her answer. Then we get to the numbers. A large bag of 1000 tablets costs $40 to make, and they sell for $115.

In six years, she’s done $1.5 million in sales. The previous year, she did $300,000 and made no money because she put everything back into the business.

Did ENERGYbits Get a Deal on Shark Tank?

Kevin says no investor is going to give her money because she isn’t making any. He’s out. Mark echoes the same concerns. Lori thinks the packaging is misleading, so she’s out.

Both Daymond and Robert think she’s irresponsible, and Catherine leaves with no deal.

ENERGYbits Shark Tank Update

The Shark Tank Blog constantly provides updates and follow-ups about entrepreneurs who have appeared on the Shark Tank TV show.

As of June 2023, this business is still up and running. They have their products available online and at Neiman Marcus stores. The business has annual sales of $4 million. Apparently, Catherine is taking a more responsible approach these days!

As of 2025, the estimated net worth of ENERGYbits is between $11 million and $16.5 million.

Posts About ENERGYbits on Shark Tank Blog

Algae-Based Food Supplement

Where Can You Buy It?

ENERGYbits are available for purchase on their official website, Amazon, and other retail stores. For more updates, check out their social media pages: Facebook and Twitter.

Quick Summary

  • Catherine Arnston presents ENERGYbits, a line of organic algae tablets that serve as a high-protein, low-calorie snack.
  • She seeks $500,000 for 5% equity in her company.
  • ENERGYbits are positioned as a superfood with numerous health benefits, including an energy boost and muscle recovery.

Interested in knowing about more products from this episode? Check out the updates of other businesses that participated alongside ENERGYbits.

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Entrepreneur, author, and raconteur, Rob Merlino is a blogger and writer who enjoys the Shark Tank TV show and hot dogs. A father of five, he freelances for a variety of publications and manages a stable of websites, including Shark Tank Blog, Hot Dog Stories, RobMerlino.com, and more.