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Xwerks Grow vs. Optimum Nutrition Gold Standard
Product comparison
XWERKS Growvs ON Gold Standard 100% Whey
Grow uses New Zealand grass-fed whey isolate and stevia. Optimum Nutrition Gold Standard combines whey isolate, concentrate and hydrolyzed whey. This comparison uses Double Rich Chocolate in the manufacturer’s 29-serving size, so its label and price are not mixed with another flavor or larger tub.
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$69.0030 servings
$74.49Double Rich Chocolate · 29 servings
Side by side
Compare the serving you will use.
Double Rich Chocolate · 29 servings. Selected label details.
| Per serving | XWERKS Grow | ON Gold Standard 100% Whey |
|---|---|---|
| Protein source | 100% whey protein isolate | Isolate + concentrate + hydrolyzed whey |
| Protein | 25 g | 24 g |
| Calories | 110 | 120 |
| Carbohydrate | 1 g | 3 g |
| Fat | 0.5 g | 1.5 g |
| Sugar | 0 g | 1 g |
| BCAAs | 6 g+ | 5.5 g |
| Serving | 1 scoop | About 1 scoop (31 g) |
| Sweetener | Stevia | Acesulfame potassium |
| Allergens | Milk | Milk and soy |
| One-time price | $69.00 | $74.49 |
| Servings | 30 | 29 |
| Cost per serving | $2.30 | $2.57 |
Cost = one-time price ÷ labeled servings, rounded to cents. Shipping, tax, subscriptions and multi-buy offers are excluded. “Not listed” refers to the reviewed label.
What matters in practice
Choose the formula that fits.
Use the selected flavor’s ingredients
The current Double Rich Chocolate label lists acesulfame potassium, natural and artificial flavor, and sunflower and/or soy lecithin. It does not list sucralose, lactase or Yellow 5. Do not apply another flavor’s ingredient list to this tub.
Isolate first does not mean isolate only
ON lists whey isolate first within a blend that also contains concentrate and hydrolyzed whey. The label does not disclose the blend proportions. Grow uses whey isolate as its protein source. Those are useful formulation differences, not proof of a head-to-head performance result.
Price depends on the tub size
The selected 29-serving ON size is $74.49 direct from the manufacturer, or $2.57 per serving rounded to cents. Larger tubs and retailer offers may change the comparison. A generic $1.30-per-serving figure does not describe this selected listing.
Which fits your priorities?
Choose Grow if…
You prefer New Zealand grass-fed isolate and stevia.
Choose ON Gold Standard 100% Whey if…
You prefer the Gold Standard blend and Double Rich Chocolate flavor.
Questions before you choose
Does the rBST statement establish inferior milk?
No. The statement about milk from treated and untreated cows does not establish inferior protein or an unsafe product. Compare the actual label, sourcing information and your preferences.
How were the products compared?
We reviewed manufacturer labels and one-time US listings on November 15, 2026. This is a buying guide published by XWERKS, not independent testing or a head-to-head trial. Formulas and prices can change; check the package you buy.
Find your fit with Grow.
Read the full label and explore current purchase options.