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We also got the scoop (heh) on how whey protein works and who its best-suited for.

Best whey protein powders 2025

Original images by SELF staff / Courtesy of the brands / Laneen Wells

Check out our favorites below.

(This is especially important because the FDA doesnt require approval of dietary supplements like protein powder.)

Our top picks

FAQs

How much protein do you really need?

Thorne Whey Protein Isolate

What is whey protein powder?

Its separated from the curd in milk and then dried into whey protein concentrate, Jones adds.

Is it safe to have whey protein powder every day?

Thorne Whey Protein Isolate

As for the best time to have whey proteinthats really up to you.

Is there anyone who should avoid using whey protein powder?

Shop the best whey protein powders

Ready toshake it up?

Klean Athlete Klean Isolate

Lets get to the products, including budget-friendly favorites and expert-approved options.

Your flavor options might be limited, but theyre tasty in a classic way.

One SELF tester liked the chocolate, even though she found it a little sweet.

Klean Athlete Klean Isolate

Another tester tried the vanilla and was pleasantly surprised by how much she enjoyed it.

This is a compliment!

It makes getting some extra protein so much easier.

Optimum Nutrition Gold Standard 100% Whey Protein Powder

A key sign of its quality is its relatively brief ingredients list.

Prefer your protein in smoothie form?

Youll be pleased to know that Amazon reviewers love how this powder blends.

Optimum Nutrition Gold Standard 100% Whey Protein Powder

I’m quite picky about how protein powder tastes with just water and how it mixes in a smoothie.

This is the best NSF Certified, clean protein I’ve found, one wrote.

Tastes great plain and mixes really well in a smoothie.

Dymatize ISO100 Hydrolyzed Protein Powder

Also gives me no stomach issues like a lot of other proteins I’ve tried.

It mixed into a milky consistency and was genuinely tasty.

Dymatizes ISO100 Hydrolyzed Protein Powder and its bakers dozen of flavors allows that freedom of choice.

Dymatize ISO100 Hydrolyzed Protein Powder

Our tester gave the vanilla variety a try and compared it to a milkshakesweet, creamy, and smooth.

She enjoyed it as both a post-workout refreshment and an accompaniment to her breakfast.

Ascent Native Fuel has the best tasting vanilla I have ever tried, wrote one Amazon reviewer.

Ascent 100% Whey Protein Powder

Nice and creamy when taken cold; and no weird chemical flavor when cooked into oatmeal or baked goods.

(The brand also has regularcow-sourced whey protein powdersif youre curious.)

Its also a great option if you prefer protein powders with minimal ingredients.

Ascent 100% Whey Protein Powder

Earth Fed Muscle Grass-Fed Whey Protein Isolate

Earth Fed Muscle Grass-Fed Whey Protein Isolate

Naked Goat Pasture Fed Goat Whey Protein Powder

Naked Goat Pasture Fed Goat Whey Protein Powder