Product Comparison

Muscle Milk Pro Series Protein Shake - Knockout Chocolate vs Siggi's Icelandic Skyr - Vanilla

Muscle Milk Pro Series Protein Shake - Knockout Chocolate edges ahead on a protein + calorie + rating blend. Muscle Milk Pro Series Protein Shake - Knockout Chocolate scores higher in that blend because it offers more protein per serving (40g vs 15g), more protein per 100 calories (15.4g vs 13.6g).

Full side-by-side of protein, calories, macros, and protein density for Muscle Milk Pro Series Protein Shake - Knockout Chocolate and Siggi's Icelandic Skyr - Vanilla below.

Muscle Milk

Pro Series Protein Shake - Knockout Chocolate

Wins on: Protein, Sugar, Fiber, Carbs, Protein per 100 cal

Pro Series Protein Shake - Knockout Chocolate

Protein

40g

Calories

260

Protein per 100 cal

15.4g

protein drinks4.4

Pros

  • More protein per serving: 40g vs 15g.
  • Better protein density: 15.4g protein per 100 calories.

Cons

  • Higher calorie count: 260 vs 110.
  • Weaker review score: 4.4 vs 4.5.
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Siggi's

Icelandic Skyr - Vanilla

Wins on: Calories, Fat

Icelandic Skyr - Vanilla

Protein

15g

Calories

110

Protein per 100 cal

13.6g

greek yogurt dairy4.5

Pros

  • Lower calorie load: 110 calories vs 260.
  • Stronger shopper rating: 4.5 vs 4.4.

Cons

  • Less protein per serving: 15g vs 40g.
  • Lower protein density than Muscle Milk Pro Series Protein Shake - Knockout Chocolate (13.6g vs 15.4g protein per 100 calories).
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Side-by-Side Breakdown
MetricMuscle Milk Pro Series Protein Shake - Knockout ChocolateSiggi's Icelandic Skyr - Vanilla
Protein40gBest15g
Calories260110Best
Sugar3gBest9g
Fiber1gBest0g
Sodium
Carbs9gBest11g
Fat6g0gBest
Protein per 100 cal15.4gBest13.6g
Pick by what matters most to you

“Healthier” depends on your goal — here’s the real winner on every number we track, so two people with different priorities can both get the right answer.

  • Protein: Muscle Milk Pro Series Protein Shake - Knockout Chocolate wins, 40g vs 15g.
  • Calories: Siggi's Icelandic Skyr - Vanilla wins, 110 vs 260.
  • Sugar: Muscle Milk Pro Series Protein Shake - Knockout Chocolate wins, 3g vs 9g.
  • Fiber: Muscle Milk Pro Series Protein Shake - Knockout Chocolate wins, 1g vs 0g.
  • Carbs: Muscle Milk Pro Series Protein Shake - Knockout Chocolate wins, 9g vs 11g.
  • Fat: Siggi's Icelandic Skyr - Vanilla wins, 0g vs 6g.
  • Protein per 100 cal: Muscle Milk Pro Series Protein Shake - Knockout Chocolate wins, 15.4g vs 13.6g.

Muscle Milk Pro Series Protein Shake - Knockout Chocolate edges ahead on a protein + calorie + rating blend.

Muscle Milk Pro Series Protein Shake - Knockout Chocolate scores higher in that blend because it offers more protein per serving (40g vs 15g), more protein per 100 calories (15.4g vs 13.6g). This blend won’t match your priorities if sugar, carbs, or diet fit matter more to you than protein, calories, and rating.

Frequently Asked Questions

Muscle Milk Pro Series Protein Shake - Knockout Chocolate vs Siggi's Icelandic Skyr - Vanilla: which has more protein?

Muscle Milk Pro Series Protein Shake - Knockout Chocolate has more protein per serving: 40g versus 15g.

Which option is better for a lower-calorie snack?

Siggi's Icelandic Skyr - Vanilla is the lighter option at 110 calories, compared with 260 calories for the alternative.

Which snack packs more protein for the calories?

Muscle Milk Pro Series Protein Shake - Knockout Chocolate is the more protein-dense pick at about 15.4g of protein per 100 calories.

Which is healthier, Muscle Milk Pro Series Protein Shake - Knockout Chocolate vs Siggi's Icelandic Skyr - Vanilla?

"Healthier" depends on your goal: Muscle Milk Pro Series Protein Shake - Knockout Chocolate has more protein (40g vs 15g); Muscle Milk Pro Series Protein Shake - Knockout Chocolate has less sugar (3g vs 9g); Siggi's Icelandic Skyr - Vanilla is lower in calories (110 vs 260). Neither is objectively the "healthiest" for everyone — see the pick-by-priority breakdown above, or try our free AI Snack Finder to get matched to your specific goal.

What is the final verdict in this comparison?

Muscle Milk Pro Series Protein Shake - Knockout Chocolate edges ahead on a protein + calorie + rating blend. Muscle Milk Pro Series Protein Shake - Knockout Chocolate scores higher in that blend because it offers more protein per serving (40g vs 15g), more protein per 100 calories (15.4g vs 13.6g). They sit in different categories, so format and texture may matter as much as the raw macros.

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