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Best Protein Powder

Kentai

Junior Protein Cocoa (ジュニアプロテイン ココア風味)

Kids

Kentai Junior Protein Cocoa (ジュニアプロテイン ココア風味) is a kids' nutrition shake with 11.1 g of protein per 21 g per day. It scores 30/100 on the TBPP Quality Score. We found no third-party testing certification.

No third-party testing found
Our score
30/100
Methodology v1.0
Protein
11.1g
21 g per day
Sugar
—
Per serving
Protein by weight
53%
Price
—
Not verified

Nutrition per serving

Cocoa flavor, from the label.

Nutrition per serving
Serving size21 g per day
Protein11.1 g
Calories77
Carbohydrates6.32 g
SugarNot verified
Fat1.1 g
Sodium118 mg
Protein by weight53%
LeucineNot verified
BCAAsNot verified

How it scored

30 of 100 points. How we score

CriterionPointsWhy
Protein density6 / 3053% of each scoop is protein
Third-party testing0 / 25No verified independent testing program
Label transparency20 / 20Fully disclosed formula, no amino spiking
Sugar0 / 10Sugar not verified
Ingredient simplicity0 / 10Flavor system not verified
Verified label data4 / 56 of 7 label values verified

Formula and label

Formula and label
TypeOther
Made forKids (no age range on the label)
Protein sourcesNot verified
Third-party testingNone found
SweetenersNot verified
Proprietary blendNo
Added free amino acidsNo
DietaryNone listed
AllergensNot verified
Made byKentai (Kentai Co., Ltd. (Health and Fitness Research Institute)) · Japan
Sold atKentai (direct)

Price

We could not verify a current U.S. price.

Sizes: 200 g, 700 g

Flavors (1)

  • Cocoa

Buying for a child

The brand does not print an age range. Most kids get enough protein from food, and our score is built for adult protein powders, so a kids' nutrition shake scores lower on protein density by design. Check with your pediatrician before adding a shake. What to look for in a kids' protein shake

Sources

Japan-only product; price fields null. Brand prices (tax incl.): ¥1,620 for 200 g (K2103) and ¥4,860 for 700 g (K2203). Nutrition from the brand page per 21 g: 77 kcal, 11.1 g protein (11.6 g anhydrous), 1.1 g fat, 6.32 g carbohydrate (5.06 g available carbs, 1.26 g fibre), 0.3 g salt equivalent (sodium 118 mg = salt / 2.54), 306.6 mg calcium, 108.6 mg magnesium, 5.0 mg iron, 2.54 µg vitamin D. The page does not give total sugars, the ingredient list, protein source or allergens, so those fields are null and category is 'other'. Mix the daily 21 g into water or milk; values are for the powder only. Food with nutrient function claims (calcium, iron, vitamin D). Marketed to the growing junior generation and junior athletes; no numeric age range is stated.

Good to know

Last checked 2026-10-14. Labels change, so check the package before buying if you have allergies. If you are pregnant, nursing or buying for a child, ask your doctor before adding a supplement.

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Other · 28 g scoop
No third-party testing found
Protein
20.6g
Sugar
—
Our score
46/100
Price not verifiedChecked 2026-10-14