Protein

Protein shakes (ready to drink)

Ready-to-drink protein shakes in bottles or cartons. Your body uses protein to build and repair muscle and other tissue.

16 products from US online stores, sorted by what 30 g of protein costs – not by the price per pack.

$2.80Lowest cost
per 30 g protein

Prices checked Nov 1, 2026, US
No paid placements

What does 30 g mean?

protein per serving in most of the products we checked: 15–35 gprotein per serving in most of the products we checked

30 g is about one serving: half of the 16 products we checked have up to 24 g per serving, the other half more.
There’s no single daily amount for protein – it depends on body weight: 1.4–2.0 g per kg a day for people who exercise, from food and supplements together (ISSN (opens in a new tab)).

We compare by 30 g only so products line up – it’s not a recommendation. Not medical advice.

Where products miss quality points

How the 16 products score

Very good 90+: 0
Good 75+: 16
Fair 60+: 0
Low under 60: 0

have no seal from an independent testing program: 16 of 16have no seal from an independent testing program10 of 30 testing points, for GMP
contain artificial sweeteners: 11 of 16contain artificial sweetenerscosts 2 of the 20 additive points
contain carrageenan: 10 of 16contain carrageenancosts 2 of the 20 additive points

The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.

We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works

Good to know

Fact: 104%more per 30 g for the most expensive product than for the cheapest.

How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check

The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.

How we calculate

Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.

Found a mistake or a product we should add? Email us

Protein shakes (ready to drink)

What does 30 g mean?

Where products miss quality points

Pack size

Strong, High Protein Shake, Chocolate Peanut Butter, 4 Shakes

Strong, High Protein Shake, Milk Chocolate, 4 Shakes

Strong, High Protein Shake, Vanilla, 4 Shakes

Gold Standard Protein Shake, Cafe Latte, 4 Cartons

Gold Standard Protein Shake, Chocolate, 4 Cartons

Gold Standard Protein Shake, Strawberry, 4 Cartons

Gold Standard Protein Shake, Vanilla, 4 Cartons

Lean Body All-in-One Protein Shake, Chocolate

Lean Body All-in-One Protein Shake, Chocolate

High Protein Shake, Milk Chocolate Delight, 8 Shakes

Combat Ready Protein Shake, Chocolate Fudge

Clean Grass-Fed Protein Shake, Vanilla Bean

Iced Coffee Protein Shake, Cafe Au Lait, 4 Shakes

Iced Coffee Protein Shake, Vanilla Latte, 4 Shakes

Organic Nutrition, Grass-Fed Protein Shake, Creamy Chocolate Fudge

Organic Nutrition, Plant Protein Shake, Smooth Chocolate

Good to know