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Three nutrients
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GFO is a powdered drink mix that contains glutamine, fiber, and oligosaccharides.

GFO is a powdered drink mix that contains three nutrients.
The name GFO is derived from the acronym for glutamine, fiber, and oligosaccharides.


Glutamine is a kind of amino acids and the most abundant amino acid found in the body. Especially, it is consumed much in the intestinal tract and is a source of energy for the intestinal tract.

Fiber (partially hydrolyzed guar gum)

Partially hydrolyzed guar gum is a water-soluble dietary fiber made from guar beans and is used by the gut microbes.

Oligosaccharide (fructooligosaccharide)

The product contains fructooligosaccharides.
Oligosaccharide is said to be a food for bifidobacteria, which is generally considered to be good bacteria. It is carried to the large intestine without being digested.

Precautions for uses

The powder may not be easily soluble, but the nutrition of the product is not affected (the product is more quickly dissolved in lukewarm to hot water). Some brown-colored substances derived from the ingredients may be found in the powder of the product, but the nutrition of the product is not affected.
Consume the product as soon as possible after opening the package.

Peach tea flavor
Nutrition facts
(10 g/packet)
Calories 30 kcal, Protein 3.6 g, Fat 0 g, Carbohydrates 6.3g (Sugars 3.1 g, Dietary fiber 3.2 g), Salt equivalent 0.006 g to 0.032 g
Glutamine 3.0 g, Partially hydrolyzed guar gum (as dietary fiber) 3 g, Fructooligosaccharides 1.45 g
Powdered drink mix
Ingredients Sugar (manufactured in Japan), Fructooligosaccharides/Thickener (partially hydrolyzed guar gum), Glutamine, Natural flavors, and Sweetener (sucralose, thaumatin)
Volume 10 g per packet
Best before date 24 months after manufacturing date
Storage Store away from direct sunlight and high temperature.
Distributor Otsuka Pharmaceutical Factory, Inc.
Manufacturing site Aliment Industry Co., Ltd.
7764, Nanbu, Nanbu-cho, Minamikoma-gun, Yamanashi Prefecture

Click here to buy the product
(available only on the Japanese site).