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Best Protein Powder

Weider (Morinaga)

Junior Protein (ジュニアプロテイン)

Kids · Elementary and junior…

Weider (Morinaga) Junior Protein (ジュニアプロテイン) is a kids' plant blend protein powder (Elementary and junior…) with 8.2 g of protein per 2 lightly heaped scoops (approx. 20 g). It scores 51/100 on the TBPP Quality Score. It is Informed Choice.

Informed Choice
Our score
51/100
Methodology v1.0
Protein
8.2g
2 lightly heaped scoops (approx. 20 g)
Sugar
—
Per serving
Protein by weight
41%
Price
—
Not verified

Nutrition per serving

Morinaga Cocoa flavor, from the label.

Nutrition per serving
Serving size2 lightly heaped scoops (approx. 20 g)
Protein8.2 g
Calories76
Carbohydrates8.7 g
SugarNot verified
Fat0.9 g
SodiumNot verified
Protein by weight41%
LeucineNot verified
BCAAsNot verified

How it scored

51 of 100 points. How we score

CriterionPointsWhy
Protein density6 / 3041% of each scoop is protein
Third-party testing15 / 25Independently tested for contaminants or label accuracy
Label transparency20 / 20Fully disclosed formula, no amino spiking
Sugar0 / 10Sugar not verified
Ingredient simplicity6 / 10Mix of natural and artificial flavors or sweeteners
Verified label data4 / 55 of 7 label values verified

Formula and label

Formula and label
TypePlant Blend
Made forKids (Elementary and junior high school students (小中学生), per the brand)
Protein sourcesSoy Protein, Whey Protein
Third-party testingInformed Choice
SweetenersSugar, Fructose
Proprietary blendNo
Added free amino acidsNo
DietaryNone listed
AllergensMilk, Soy
Made byWeider (Morinaga) (Morinaga & Co.) · Japan
Sold atDrugstores, Sports stores, Online retailers (Japan)

Price

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

Sizes: 240 g, 980 g

Flavors (1)

  • Morinaga Cocoa

Buying for a child

Age range from the brand: Elementary and junior high school students (小中学生). 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 (no list price on the brand page). Nutrition from the brand page per 20 g serving (cocoa): 76 kcal, 8.2 g protein (8.6 g anhydrous basis), 0.9 g fat, 8.7 g carbohydrate, 500 mg calcium, 5.4 mg iron, 2.5 µg vitamin D. Salt equivalent is given only as a range (0.12–0.32 g), so sodium is null. Sugars are not stated. Ingredients: soy protein (made in Japan), sugar, whey protein (contains milk), cocoa powder, fructose, caramel sauce, edible oil, calcium carbonate, emulsifier, iron pyrophosphate, flavouring, vitamins. Soy protein is listed first, so category is plant-blend even though it also contains whey. Mix with 200 ml water or milk; values are for the powder only. The brand states Informed Choice anti-doping certification. Marketed for active elementary and junior-high students during growth; not a complete-nutrition formula.

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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Muscle Fit Protein

Whey Blend · 30 g scoop
Informed ChoiceAdded amino acids
Protein
23.3g
Sugar
—
Our score
50/100
Price not verifiedChecked 2026-10-14