Whey and whey isolate comparison
Optimum Nutrition Gold Standard 100% Whey vs Ascent Native Whey Protein Powder
Ascent Native Whey scores higher on our standard, 92/100 to 78/100. It earns more points for third-party testing (Informed Sport vs Informed Choice) and ingredient simplicity (natural flavors vs mixed natural and artificial). We could not verify a current price for Ascent Native Whey, so we can't compare cost.
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 2026-10-13.
Optimum Nutrition
Gold Standard 100% Whey
Ascent
Native Whey Protein Powder (formerly Native Fuel Whey)
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 | ON Gold Standard Whey | Ascent Native Whey |
|---|---|---|
| Our score | 78/100 | 92/100 (better) |
| Protein density | 22 / 3077% of each scoop is protein | 22 / 3076% 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 | 6 / 10Mix of natural and artificial flavors or sweeteners | 10 / 10 (better)Natural flavors and sweeteners |
| Verified label data | 5 / 57 of 7 label values verified | 5 / 57 of 7 label values verified |
| Type | Whey Blend | Whey Blend |
| Protein per serving | 24 g | 25 g |
| Serving size | 31g (About 1 Scoop) | 1 scoop (33 g) |
| Protein by weight | 77% (better) | 76% |
| Sugar | 1 g | 1 g |
| Calories | 120 | 120 |
| Cost per 25 g protein | $1.86 | Not verified |
| Price per serving | $1.78 | Not verified |
| Third-party certifications | Informed Choice | Informed Sport |
| Sweeteners | Acesulfame Potassium | Stevia Leaf Extract |
| Allergens | Milk, Soy | Milk, Soy |
| Proprietary blend | No | No |
| Added free amino acids (amino spiking) | No | No |
| Last checked | 2026-10-13 | 2026-10-13 |
Which to choose
Only the differences in our records. A value we couldn't verify never counts as a difference.
Choose ON Gold Standard Whey if…
- You want more flavors to choose from (22 vs 13).
Choose Ascent Native Whey if…
- You want a powder lot-tested for banned substances (Informed Sport).
- You prefer natural flavors and sweeteners (ON Gold Standard Whey uses a mix of natural and artificial ones).
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.