Tetsudamashii Energy Drink

Posted on February 1, 2021 | Last updated February 5, 2025

Tetsudamashii Energy Drink
This is Tetsudamashii, a one-off energy drink from Cherio. The name "Tetsudamashii" (鉄魂) combines "tetsu" (鉄) meaning iron and "tamashii" (魂) meaning soul. It’s packed with iron, making it a solid energy drink with the tagline "Go Safe!" This is a fun, gimmicky energy drink that will definitely make you laugh, and it’s been a while since something like this came along.

Tetsudamashii Energy Drink

Manufacturer	Cheerio
Country of Origin	Japan
Price	80 JPY
Flavor	classic flavor、Chemicals
Total rating	★★★☆☆

Author information Author: Energy Drink-kun

In 2001, while living in the United States, I encountered energy drinks through the dance scene and was deeply impressed. After returning to Japan, I found that energy drinks were considered novelty beverages, so I established a comprehensive website in 2013 to share the true appeal of energy drinks. As an energy drink enthusiast, I began drinking them seriously again, collecting over 7,000 varieties of energy drinks from various countries. I am also active as a critic and expert, receiving media interviews.

Refreshing, Subtle, Classic Chemical Flavor

Tetsudamashii Energy Drink
When you take a sip, the sweetness is mild with a light, smooth texture, offering a classic chemical flavor. It’s subtle but also has a slight medicinal taste, giving you that clear, familiar energy drink vibe—it's the kind of taste you’d expect from a classic energy drink.

The taste doesn’t linger, and the mouthfeel is a bit watery, which might feel a bit unsatisfying for a classic flavor, but the sweet aroma persists, leaving you with an oddly satisfying feeling as if you’re drinking something worthwhile.

It’s so subtle that you might think it contains less sugar, but it has the usual amount of sugar in it (^_^;).

Whether it feels lacking due to the lack of savory taste or refreshing because of its lightness depends on personal preference.

The design of the can might make you imagine a strong flavor, but the taste inside is gentle—a fun contrast that adds to the appeal (*´艸｀*).

Tetsudamashii's Energy Ingredients

Tetsudamashii Energy Drink
Tetsudamashii contains 560mg of arginine, 102mg of caffeine, 200mg of maca, 200mg of guarana, and 1.8mg of iron. Its standout feature is the inclusion of iron, which is rare in energy drinks.

Tetsudamashii Energy Drink's Design

Tetsudamashii was sold in vending machines. The flames blazing and the logo for "Tetsudamashii" are fine, but the addition of the katakana "テツダマシイ！！", the cursor icon next to "Go Safe!", and other quirky design elements make it clear that this is all part of Cherio's playful approach to design.
Tetsudamashii Energy Drink
The more you look at it, the more ridiculous and hilarious it becomes.

Tetsudamashii Energy Drink "Tetsudamashii" isn’t just limited to this energy drink. There’s also a 250ml can of coffee in the series, and it looks like it also had "Go Safe!" written on it. Maybe this design style is typical for Cherio.

This quirky energy drink seems to have been created just to make people say, "I found a strange energy drink!" It’s so over-the-top that it always makes me laugh (^_^;).