[Dietitian Supervised] Complete Nutritional Protein 'RICH RISE PROTEIN' Launches 400g 'Trial Size' Across All Flavors

'RICH RISE PROTEIN,' a fully nutritional protein that secured the number one spot in the protein category (※1, ※2) immediately after its launch and has garnered a reputation for its luxurious flavor that impresses Kyoto tea masters, chocolatiers, and Japanese sweets artisans, will be available in a 400g trial size across all flavors starting Friday, May 22, 2026. In response to many customer comments such as 'I was hesitant to buy because I was worried if I could finish it' and 'I want to try a small amount first,' we have realized a price and quantity that are easy for first-timers to pick up. Supervised by a registered dietitian and containing 35 types of ingredients, this complete nutritional food becomes a more accessible cup.

Since starting its brand development in 2018, STEADY Japan Inc. (Headquarters: Shinjuku-ku, Tokyo; Representative Director & CEO: Yuki Mori)—which picks up customer feedback on existing products through social media and customer support, proposes home fitness/stretching products tailored to the Japanese physique, mindset, living environment, and lifestyle, and boasts top-class e-commerce sales performance in Japan—will begin selling the 400g size of 'RICH RISE PROTEIN' on Friday, May 22, 2026, through the official STEADY website, Amazon.co.jp, Rakuten Ichiba, and other channels.

Supervised by a registered dietitian and formulated with 35 carefully selected ingredients, 'RICH RISE PROTEIN,' which won first place in the protein category right after its release, is a complete nutritional food that can supplement 1/3 (※3) of the daily required nutrients in a single meal (50g). At the same time, it has built a solid reputation for its luxurious flavor that impresses even Kyoto's tea masters, chocolatiers, and Japanese confectionery artisans, making both those unfamiliar with protein and those who have tried various products say they 'want to keep drinking it.' However, among customers hesitating to purchase or consulting customer support, many voiced concerns about the size, saying, 'As a first-timer, I can't take the step because I don't know if I can finish it,' 'I'm worried about whether I can continue, so I want to try a small amount first,' and 'I want to easily try and compare various flavors.' To address these [hurdles to trying] in purchasing protein, we achieved the development of a 'trial size' with a net weight of 400g by reducing printing and shipping costs and intentionally keeping the bag size the same. This has created an optimal option for those buying protein for the first time or wanting to easily compare multiple flavors.

For those who like it, we offer regular purchases with no minimum commitment and adjustable schedules on our official website, Amazon, and Rakuten Ichiba, so you can easily continue after confirming your taste preference and the product's high quality (regular purchases are available for the 750g size only). What is important when making protein a habit is that the ease of buying and continuing naturally blends into your daily life. While research reports indicate that getting high protein as a breakfast replacement makes it easier to control daily caloric intake (※4), the ability to incorporate it according to your lifestyle—from replacing one meal to adding a 'little extra' to your diet—is another reason it's easy to continue every day. In addition to an environment where you can continue saving money on the online malls you usually use, we also offer it as a hometown tax (furusato nozei) return gift in Ibaraki City, Osaka Prefecture, allowing you to obtain it in a way different from normal shopping. STEADY will continue to prepare options that start from 'being able to try' and lead to 'being able to continue.'

[SLOW BUT STEADY] — 'Because it's delicious, you want to keep drinking it. Every time you notice a change, you come to like yourself a little more.' Building a healthy mind and body and creating a 'self that you like' starts not from forcing or enduring, but from the accumulation of daily small 'I did it' moments. To spread this experience to as many people as possible, STEADY will continue its uncompromising pursuit of better product creation in terms of quality, lineup, and size options.

(※1) Ranked 1st in the New Releases 'Protein Supplements' and New Releases 'Multi-Protein Supplements' rankings as of 16:38 on December 20, 2023.
(※2) Ranked 1st in the Rakuten Ichiba Daily Ranking for Multi-Protein (Country of production: Japan × Single item weight (g): 700-799g) updated on Friday, September 6, 2024 (Aggregation date: September 5).
(※3) Based on the Ministry of Health, Labour and Welfare's 'Dietary Reference Intakes for Japanese (2020 edition)' (excluding energy, lipids, carbohydrates, sodium, and phosphorus).
(※4) Consuming a high-protein breakfast increases satiety and suppresses total daily caloric intake, as reported in multiple peer-reviewed academic papers (Leidy et al., Am J Clin Nutr, 2013, etc.). Effects vary among individuals.

RICH RISE PROTEIN

■ Product Features

- Deliciousness that fascinates top-tier palates: With a luxurious flavor that makes Kyoto tea masters, chocolatiers, and Japanese confectionery artisans groan in admiration, this complete nutritional food and conventional...