THE PROTEIN (ZAPRO) Teams Up with Top Bodybuilder Popeye Sekine, Known for His Overwhelming Bulk, Signing Official Sponsorship Agreement

Takeuchi Pharmaceutical's protein brand "THE PROTEIN (ZAPRO)" has signed an official sponsorship agreement with IFBB Pro Bodybuilder Popeye Sekine, aiming to enhance brand value and revitalize the training industry.
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  • 📰 Published: April 2, 2026 at 03:17
Takeuchi Pharmaceutical Co., Ltd. (Head office: Nishi-Gotanda, Shinagawa-ku, Tokyo; Representative Director: Yuto Ogura), which develops D2C and OEM businesses for health foods and cosmetics, is pleased to announce that "THE PROTEIN (commonly known as ZAPRO)," manufactured and sold by the company, has signed an official sponsorship agreement with IFBB Pro Bodybuilder Popeye Sekine.

THE PROTEIN (commonly known as ZAPRO) has signed an official sponsorship agreement with IFBB Pro Bodybuilder Popeye Sekine as part of its efforts to strengthen support for serious athletes.

Moving forward, we will fully support his competitive activities and work to further enhance brand value and revitalize the training industry through joint development of original products and various promotional measures.

【About Popeye Sekine】

Popeye Sekine

An IFBB Pro Bodybuilder active at the forefront, known for his overwhelming bulk (muscle mass).

In addition to his achievements as a competitor, he actively promotes the appeal and knowledge of training through his YouTube channel and social media, and is also involved in developing original apparel, engaging in a wide range of activities beyond the scope of competition.

He is an athlete expected to achieve further success in the future, serving as a presence that widely conveys the value and potential of bodybuilding.

〈Main Achievements〉

2020 FWJ Hidetada Yamagishi, Iris Kyle Japan Classic - bodybuilding over all winner

2021 NY PRO participant

〈SNS〉

X     @popai0114

Instagram popaisekine

YouTube.  ポパイの部屋【ポパイ関根】

【Comment from Popeye Sekine】

I feel that the two pillars of "safety" and "continuation" are very important for continuing training.

No matter how hard you train, you cannot continue competing for long if you don't take care of your body, and I believe that building an ideal physique can only be achieved through daily accumulation.

ZAPRO's products are very appealing because of their thorough quality control, allowing me to drink them with peace of mind. Furthermore, the wide variety of flavors makes it easy for even those who are not fond of supplements to incorporate them, and I felt that efforts are made to ensure they can be continued without difficulty. This is a very reassuring point for me, who faces training every day. And above all, I was deeply impressed by their attitude of constantly pursuing better supplements while always prioritizing the customer.

I decided to join Team ZAPRO this time with the desire to convey the appeal of the products and the importance of body building to more people, together with ZAPRO.

Comment from Mr. Kobayashi, Marketing Communication Manager, Takeuchi Pharmaceutical Co., Ltd.

We are extremely pleased that Popeye Sekine resonated with our core values of "safety" and "continuation," and we are honored to have him join us as a member of Team ZAPRO.

THE PROTEIN aims to be "a protein you want to drink every day," pursuing both quality that allows for safe continuation and deliciousness that makes it easy to keep drinking.

Popeye Sekine's philosophy of "protecting the body while building it up," which he values in his daily training, perfectly aligns with the foundation of our brand.

Through this partnership, we are confident that we can convey the value of "body building that can be continued without difficulty" to more people, along with the real voices of top athletes.

Moving forward, we will fully support Popeye Sekine's challenges, and ZAPRO will also strive to develop products and provide value that are even more customer-centric.

〈What is the protein brand THE PROTEIN (commonly known as ZAPRO)?〉

The protein brand THE PROTEIN (commonly known as ZAPRO) is a protein you'll want to drink every day!!

With an astonishing variety of over 60 flavors! From classic flavors to surprisingly rare ones, you're sure to find your favorite. ZAPRO is not only rich in flavors but also committed to deliciousness and taste reproduction! So, it's recommended for both regular protein drinkers and those who haven't tried much protein before!

Furthermore, by handling everything from planning to raw material procurement, formulation, manufacturing, and sales in-house, we reduce costs other than product cost and deliver products to customers quickly. We also value sincerely addressing reviews on social media and products, and swiftly connecting them to product improvements and new product development, to ensure customers can continue drinking our products for a long time. From top athletes' physique building to health promotion and diet purposes. We strive daily for research and the pursuit of safety and security so that people of all ages and genders can experience the value that only ZAPRO can provide.

【Company Profile】

■Company Name: Takeuchi Pharmaceutical Co., Ltd.
■Representative Director: Yuto Ogura
■Location: Gotanda NT Building 5F, 1-18-9 Nishi-Gotanda, Shinagawa-ku, Tokyo
■Established: September 2016
■URL: https://takeuchi-corp.jp/
■Business Activities: D2C and OEM business for health foods and cosmetics
■Public Relations Group Contact: Masuda
E-MAIL : [email protected]

FAQ

Why did ZAPRO sign a contract with Popeye Sekine?

The partnership was formed because ZAPRO's philosophy of prioritizing "safety" and "continuation" resonated with Popeye Sekine's approach to physique building.

What are the future activities planned?

They will support his competitive activities, jointly develop original products, and implement various promotional measures to enhance brand value and revitalize the industry.

What are the features of ZAPRO's protein?

ZAPRO protein boasts over 60 flavors, reliable quality for continuous consumption, delicious taste, and rapid product improvement/development based on customer feedback.