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Best Protein Powder

Kaizen Naturals

Kaizen Naturals Whey Isolate

Kaizen Naturals Kaizen Naturals Whey Isolate is a whey isolate protein powder with 25 g of protein per 1 scoop (30 g). It scores 75/100 on the TBPP Quality Score. We found no third-party testing certification.

No third-party testing found
Our score
75/100
Methodology v1.0
Protein
25g
1 scoop (30 g)
Sugar
0g
Per serving
Protein by weight
83%
Price
—
Not verified

Nutrition per serving

Decadent Chocolate flavor, from the label.

Nutrition per serving
Serving size1 scoop (30 g)
Protein25 g
Calories120
Carbohydrates3 g
Sugar0 g
Fat0.5 g
Sodium55 mg
Protein by weight83%
Leucine2.731 g
BCAAs5.76 g

How it scored

75 of 100 points. How we score

CriterionPointsWhy
Protein density30 / 3083% of each scoop is protein
Third-party testing0 / 25No verified independent testing program
Label transparency20 / 20Fully disclosed formula, no amino spiking
Sugar10 / 100 g sugar per serving
Ingredient simplicity10 / 10Natural flavors and sweeteners
Verified label data5 / 57 of 7 label values verified

Formula and label

Formula and label
TypeWhey Isolate
Protein sourcesWhey Protein Isolate
Third-party testingNone found
SweetenersStevia Leaf Extract
Proprietary blendNo
Added free amino acidsNo
DietaryGluten-Free, Non-GMO, Grass-Fed
AllergensMilk, Soy
Made byKaizen Naturals
Sold atKaizen Naturals (brand site), Well.ca

Price

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

Sizes: 840 g

Flavors (2)

  • Vanilla Bean
  • Decadent Chocolate

Sources

Nutrition from the brand's Canadian Nutrition Facts panel image for Decadent Chocolate (per 1 scoop, 30 g): 120 kcal, 25 g protein, 0.5 g fat, 3 g carbohydrate (1 g fibre), 0 g sugars, 55 mg sodium. Leucine and BCAA from the brand's typical amino acid profile image (leucine 2.731 g + isoleucine 1.555 g + valine 1.473 g = 5.76 g BCAA; identical images posted for both flavours). Package front states 'No artificial colours, flavours or sweeteners', '0 g lactose' and 'Only 5 ingredients'. Brand page claims Non-GMO, Gluten Free, sourced from grass-fed cows, made in a peanut-free facility, and 'Contains: Milk, Soy'. The brand page does not publish an ingredient list; Well.ca lists 'Whey protein isolate, Soy lecithin, Xanthan gum, Stevia leaf extract, Tapioca, Natural flavours' (and a 29 g scoop), which may reflect an older label, so only the sweetener (stevia leaf extract) is taken from it. No third-party certification (e.g. NSF) is shown on the current isolate page, although older discontinued single-serve listings mentioned NSF. Sold in CAD only ($79.99 CAD for 840 g on brand site); no USD price. Servings per container not stated. Manufacturing country and parent company not verified.

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.