Whey and whey isolate comparison
Transparent Labs 100% Grass-Fed Whey Protein Isolate vs Kaged Whey Protein Isolate
Kaged Whey Isolate scores higher on our standard, 92/100 to 90/100. It earns more points for third-party testing (Informed Sport vs Informed Choice and Informed Protein), while Transparent Labs Whey earns more for protein density (80% vs 71% protein by weight). Per 25 g of protein, Transparent Labs Whey costs $1.93 and Kaged Whey Isolate $2.07.
Both are scored out of 100 against our published standard: protein density, third-party testing, label transparency, sugar, ingredient simplicity and verified label data. Every number below is from the manufacturer's label; last checked 2026-10-14.
Transparent Labs
100% Grass-Fed Whey Protein Isolate
Side by side
Per serving, from each label. Bold marks the better score, protein density, sugar and cost where the two differ. How we score
| Compared | Transparent Labs Whey | Kaged Whey Isolate |
|---|---|---|
| Our score | 90/100 | 92/100 (better) |
| Protein density | 30 / 30 (better)80% of each scoop is protein | 22 / 3071% of each scoop is protein |
| Third-party testing | 15 / 25Independently tested for contaminants or label accuracy | 25 / 25 (better)Lot-tested for banned substances |
| Label transparency | 20 / 20Fully disclosed formula, no amino spiking | 20 / 20Fully disclosed formula, no amino spiking |
| Sugar | 10 / 101 g sugar per serving | 10 / 101 g sugar per serving |
| Ingredient simplicity | 10 / 10Natural flavors and sweeteners | 10 / 10Natural flavors and sweeteners |
| Verified label data | 5 / 57 of 7 label values verified | 5 / 57 of 7 label values verified |
| Type | Whey Isolate | Whey Isolate |
| Protein per serving | 28 g | 25 g |
| Serving size | 1 Scoop (34.9g) | 1 scoop (35 g) |
| Protein by weight | 80% (better) | 71% |
| Sugar | 1 g | 1 g |
| Calories | 130 | 120 |
| Cost per 25 g protein | $1.93 (better) | $2.07 |
| Price per serving | $2.17 | $2.07 |
| Third-party certifications | Informed Choice, Informed Protein | Informed Sport |
| Sweeteners | Stevia Extract | Sucralose, Steviol Glycosides |
| Allergens | Milk | Milk |
| Proprietary blend | No | No |
| Added free amino acids (amino spiking) | No | No |
| Last checked | 2026-10-13 | 2026-10-14 |
Which to choose
Only the differences in our records. A value we couldn't verify never counts as a difference.
Choose Transparent Labs Whey if…
- You want more protein per serving (28 g vs 25 g).
- You want more of each scoop to be protein (80% vs 71% by weight).
- You want to pay less per 25 g of protein ($1.93 vs $2.07).
- You want a powder the brand labels grass-fed (our record for Kaged Whey Isolate has no such label).
- You want more flavors to choose from (22 vs 3).
Choose Kaged Whey Isolate if…
- You want a powder lot-tested for banned substances (Informed Sport).
The two powders
Good to know
Labels and prices change, so check the package before buying, especially if you have allergies. If you are pregnant, nursing, buying for a child or managing a health condition, ask your doctor before adding a supplement.