Protein · head-to-head
Gold Standard Whey vs Muscle Milk
Protein head-to-head, graded on doses and price
by Optimum Nutrition
A
A+
Formula · Deal
Our pick
by CytoSport
C
D
Formula · Deal
Our pick: Gold Standard Whey — better formula on the numbers.
Side by side
| Gold Standard Whey | Muscle Milk |
|---|
| Formula grade | A | C |
|---|
| Deal grade | A+ | D |
|---|
| Price | $39.99 / 29 srv | $34.99 / 16 srv |
|---|
| Per serving | $1.38 | $2.19 |
|---|
| DIY bulk cost/serving | $2.07 | — |
|---|
| Markup over DIY | 0.7× | — |
|---|
| Ingredients at clinical dose | 1 of 1 | — |
|---|
| Bottom line | Worth it | Marked up |
|---|
Gold Standard Whey verdict
The industry benchmark for a reason — 24g of quality whey (isolate-forward) per scoop, well-flavored, third-party tested, at a fair per-serving price. Protein is one of the few categories where the big brand is genuinely a good deal. Not much to "DIY" here; this one earns its shelf space.
Muscle Milk verdict
More marketing than muscle — a protein blend padded with maltodextrin and oils, fewer servings per tub, and a "lean lipids" story that just means added fat. It's convenient and everywhere, but per gram of quality protein it's a poor value next to a straight whey. Better options cost the same or less.
Full Gold Standard Whey review →
Full Muscle Milk review →
More Protein grades
Educational only — not medical advice. Grades and clinical doses are computed from public labels against sourced research (citations on the main site); prices last verified 2026-07-21. Expensive Powder has no sponsors; bulk links may earn an affiliate commission, which never affects a grade. Talk to a clinician before starting any supplement.