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The clean staples guide · US products

Grass-fed whey protein, compared.

Compare unflavored whey labels and sourcing claims, then save your choice for the next time you shop.

What “clean” means here

Ingredients checked against your selected additives, with producer claims shown separately. This is not a nutrition or safety rating.

2 of 2 products · Click a brand for label notes

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Whey protein: sourced claims, selected additives, observed price per ounce, and buying options
Where to buy
Grass-fed wheySelected additives not found$2.37$37.99 / 16 ozBuy from Naked
Milk from grass-fed cowsSelected additives not foundCheck seller priceBuy from Promix

Buying links currently have no affiliate tracking. Buying links do not influence ingredient results. Amazon links open the producer’s store; confirm the exact product and stock there. Price observations expire after 30 days.

Before you buy

What to verify on the label.

  • Match unflavored protein with unflavored protein; flavored formulas can add ingredients.
  • Check concentrate versus isolate and the exact container size.
  • One-time and subscription prices differ. Confirm your selection before checkout.

A few useful answers

What do the additive results cover?

The results check the saved ingredient text against the additives in your personal avoid list. They do not measure contaminants, nutrition, or product quality.

Why is only one price shown?

We verified a one-time price and container weight for Naked’s 1 lb option. We have not confirmed a matching pack weight for the current Promix options, so its price remains unlisted.