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The best protein powders for most people
Optimum Nutrition Gold Standard wins for its broad appeal, solid protein per scoop, many flavors and lower cost than premium isolates.
| Best overall | Best value | Cheapest that's still good | |
|---|---|---|---|
| Product | Transparent Labs 100% Grass-Fed Whey Protein Isolate | Optimum Nutrition Gold Standard 100% Whey Protein Powder | Nutricost Whey Protein Concentrate Powder, Milk Chocolate, 5 lb |
| Price | about $65 | about $63 | about $98 for 5 lb |
| Why | It delivers 28 grams of protein per serving, mixes smoothly and is Informed Choice certified. It costs more than the value picks, but reviewers praised its taste and straightforward formula. | It offers 24 grams of protein per serving, many flavors and a much lower cost per serving than premium isolate. WIRED named it best overall, while Men’s Health selected it for value. | AARP’s 2026 testing named it best value, citing its 25 grams of protein per serving, taste and cost. A recent Amazon price listing put the large tub at about $98, or roughly $1.55 per serving. |
| Good to know | At about $2 per serving, it is pricey for a daily powder. | Some flavors use artificial sweeteners, and it can mix thinly with water. | Concentrate may be harder to digest than isolate, and reviewers say it needs extra shaking. |
| See on Amazon | See on Amazon | See on Amazon |
picture by AIIt delivers 28 grams of protein per serving, mixes smoothly and is Informed Choice certified. It costs more than the value picks, but reviewers praised its taste and straightforward formula.
Good to know: At about $2 per serving, it is pricey for a daily powder.
See on Amazonpicture by AIIt offers 24 grams of protein per serving, many flavors and a much lower cost per serving than premium isolate. WIRED named it best overall, while Men’s Health selected it for value.
Good to know: Some flavors use artificial sweeteners, and it can mix thinly with water.
See on Amazonpicture by AIAARP’s 2026 testing named it best value, citing its 25 grams of protein per serving, taste and cost. A recent Amazon price listing put the large tub at about $98, or roughly $1.55 per serving.
Good to know: Concentrate may be harder to digest than isolate, and reviewers say it needs extra shaking.
See on AmazonDanilli may earn a small commission from Amazon when you buy through these buttons. The price is the same for you. Product pictures are made by Danilli's AI to show the product; check the real photos on the store page.
What matters
Compare the protein per serving and cost per 25 grams, not just the tub price. Whey concentrate can be harder to digest than isolate, and flavors may use artificial sweeteners.
Who this is for
These picks are for people who want an easy way to add protein to shakes or food. If you avoid dairy, choose a plant-based powder instead.
The picks, one by one
Best overall: Transparent Labs 100% Grass-Fed Whey Protein Isolate
It delivers 28 grams of protein per serving, mixes smoothly and is Informed Choice certified. It costs more than the value picks, but reviewers praised its taste and straightforward formula. Men’s Health testers liked its silky texture and strawberry milkshake flavor; it has 0–2 grams of carbs depending on flavor. WIRED also highlighted its third-party testing and lack of artificial sweeteners, dyes and fillers. It works well in water or milk, and the unflavored version can go into smoothies or baking. Skip it if you want the lowest price or need to avoid dairy.
Good to know: At about $2 per serving, it is pricey for a daily powder.
See on AmazonBest value: Optimum Nutrition Gold Standard 100% Whey Protein Powder
It offers 24 grams of protein per serving, many flavors and a much lower cost per serving than premium isolate. WIRED named it best overall, while Men’s Health selected it for value. The blend includes whey isolate, concentrate and peptides, and the powder is Informed Choice certified. WIRED testers sampled it in drinks and baking and found the vanilla ice cream flavor versatile. Men’s Health noted that it can taste thin mixed with water, so milk or a smoothie may suit it better. Some flavors contain artificial sweeteners, and it includes soy.
Good to know: Some flavors use artificial sweeteners, and it can mix thinly with water.
See on AmazonCheapest that's still good: Nutricost Whey Protein Concentrate Powder, Milk Chocolate, 5 lb
AARP’s 2026 testing named it best value, citing its 25 grams of protein per serving, taste and cost. A recent Amazon price listing put the large tub at about $98, or roughly $1.55 per serving. AARP testers assessed taste, texture, mixability and value, and rated it 9.1 out of 10. The 5-pound tub has about 63 servings, making it a comparatively inexpensive option per shake even when the upfront price is high. Its whey concentrate is a familiar, no-frills choice for people who tolerate dairy. If you are lactose-sensitive, consider an isolate instead.
Good to know: Concentrate may be harder to digest than isolate, and reviewers say it needs extra shaking.
See on AmazonHow we chose
Reviewers mixed powders with water, milk and smoothies, then judged taste, texture and how well they dissolved. Some also assessed nutrition, ingredient quality and third-party testing; testing periods varied by publication. Danilli read the reviews and tests listed below and compared current prices; it does not take money from brands to pick a product.
Sources
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Written with Danilli's AI from the sources above and refreshed about once a month; prices change, check Amazon for today's price. Danilli may earn a small commission from Amazon when you buy through these buttons. The price is the same for you. Product pictures are made by Danilli's AI to show the product; check the real photos on the store page.