Suntory Dekavita C vs Otsuka Oronamin C energy drinks

Today for refreshment during work, I bought an energy drink called “Dekavita C” from a vending machine for 100 yen (about 0.9 USD).

Suntory Dekavita C

suntory dekavita c energy drink 240 ml can

Dekavita C is a popular Japanese energy drink from Suntory.

The company started selling this carbonated beverage in 1992 when it came in a 210 ml glass bottle. But now it seems like the mainstream is this 240 ml can (Price: 115 yen).

The name of this product derives from “Dekkai Vitamin C” literally meaning “Big Vitamin C”.

This is mainly because at the time of its release, other energy drinks, like Otsuka Oronamin C, were sold in 100 ml or so glass bottles.

suntory dekavita c


Otsuka Oronamin C Energy Drink

“Oronamin C (オロナミンC)” is the pioneer of Japanese carbonated energy drinks put on the market in 1965 by Otsuka Pharmaceutical, which comes in a 120 ml glass bottle priced at 105 yen.

Taste-wise, Suntory Dekavita C and Otsuka Oronamin C are quite similar with a citrusy, fruity note. They are both easy to drink, don’t taste like a chemical.

Now in Japan, a wide variety of energy drinks can be seen.

But these are classics, together with Coca-Cola Japan’s Real Gold, and are recommended to those who want to know the starting points of Japanese carbonated energy drinks.

Ingredients and Nutritional Values

suntory dekavita c ingredients

Lastly, based on the product information on the official websites (Suntory, Otsuka), let’s see the ingredients and nutrition facts of the Dekavita C and Oronamin C energy drinks.


Dekavita C Oronamin C
Fructose corn syrup, sugar, royal jelly extract, carbonic acid, acidifier, flavoring, vitamin C, niacinamide, caffeine, calcium pantothenate, soluble vitamin P, vitamin B1, vitamin B6, vitamin B2, monosodium glutamate (MSG), β-carotene, and vitamin B12 Sugar, fructose corn syrup, honey, salt, carbonic acid, flavoring, vitamin C, citric acid, caffeine, niacinamide, vitamin B6, vitamin B2, soluble vitamin P, isoleucine, threonine, phenylalanine, and monosodium glutamate (MSG)

Nutritional Values

Nutritional Values
  Dekavita C (100 ml) Oronamin C (120 ml)
Calories 54 kcal 79 kcal
Protein 0 g 0 g
Fat 0 g 0 g
Carbohydrates 13.5 g 19 g
Salt equivalents 0.01 g 0 g
Vitamin B1 0.67 mg  
Vitamin B2 0.76 mg 2.4 mg
Vitamin B6 1.0 mg 4.9 mg
Vitamin C 95 mg 220 mg
Niacin 8.6 mg 12 mg
Vitamin P 1.2 mg  
Caffeine 5 mg 18 mg


Hi, I'm Tomo, a Japanese blogger living in Niigata Prefecture, Japan. For the purpose of enriching your life, I would like to introduce things about Japan on this blog, especially unique Japanese products, cooking recipes, cultures, and facts and trivia.

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