Sports nutrition · Optimum Nutrition

Gold Standard 100% Casein Chocolate Peanut Butter

Why Optimum Nutrition casein protein?

  • 24 g protein per serving
  • 71% protein by weight
  • Manufactured in the USA in our NSF GMP Registered Facility This product contains ingredients of international and domestic origin

From the label’s panel and printed marks — not its marketing.

Supplement Facts

Serving size 1 heaping scoop (34 g)

Calories120 kcal

Total Fat1 g

Cholesterol15 mg

Sodium240 mg

Total Carbohydrates3 g

Protein24 g

Vitamin A0 NP

Full panel ↓

Sold as food, not medicine — no regulator checked that it works

24gProtein48% DV
120kcalCalories
1gTotal Fat2% DV
240mgSodium10% DV

Per serving · 1 heaping scoop (34 g)

At a glance

From the label as printed · NIH DSLD

What it is

Protein powder

Per serving

24 g protein

71% protein by weight — our arithmetic on the label’s own numbers

26 servings per container

How to take it

Just add one heaping scoop of Gold Standard 100% Casein to a shaker cup filled with 10-12 oz of your preferred beverage.

One serving: 1 heaping scoop (34 g)

Label warning

Allergen Information: Contains milk and soy (Lecithin) ingredients.

All warnings ↓
Independent testing

The label shows a third-party testing mark

  • Manufactured in the USA in our NSF GMP Registered Facility This product contains ingredients of international and domestic origin

As printed on the label. Check the certifier’s own register to confirm this product is listed.

Good to know
  • Sports nutrition — claims are the manufacturer’s
  • Adult (18 - 50 Years)

Supplement Facts

Supplement Facts

Serving size 1 heaping scoop (34 g)

Servings per container 26

Amount per serving% DV
Calories120 kcal†
Calories from Fat10 kcal
Total Fat1 g2%
Saturated Fat0.5 g3%
Trans Fat0 g
Cholesterol15 mg5%
Sodium240 mg10%
Total Carbohydrates3 g1%
Dietary Fiber1 g4%
Sugar1 g
Protein24 g48%
Vitamin A0 NP0%
Vitamin C0 NP0%
Calcium0 NP50%
Iron0 NP4%

† Daily Value not established.

One serving, as a share of the Daily ValueThe label’s own percentages. 100% is the reference amount for a day — not a target, and not a safe upper limit.
  • Cholesterol15 mg5%
  • Protein24 g48%
  • Vitamin A0 NP0%
  • Vitamin C0 NP0%
  • Calcium0 NP50%
  • Iron0 NP4%

Other ingredients: Micellar Casein, Cocoa, Natural & Artificial Flavors, Salt, Cellulose Gum, Xanthan Gum, Carrageenan, Lecithin, Acesulfame Potassium, Sucralose, Aminogen

Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label

How to take it

  • Directions: Using a shaker cup is the easiest mot convenient way to mix up a consistently great casein shake every time. Just add one heaping scoop of Gold Standard 100% Casein to a shaker cup filled with 10-12 oz of your preferred beverage. Cover and shake for 25-30 seconds. Tip: Adjust the flavor and texture of your Gold Standard 100% Casein Shake by varying the amount of liquid you use to prepare it. For a bolder flavor with a slightly thicker body and more sweetness, mix one scoop with 8-10 oz of water, ,ilk or your favorite beverage. For a thinner, milder tasting, less sweet shake, use 12-14 oz of liquid. Don't have a shaker cup? Visit optimumnutrition.com and order a custom shaker, or visit your local health food store or gym. Blender: Add one heaping scoop of Gold Standard 100% casein to a blender filled with 10-12 oz of water, milk, or your favorite beverage. Blend for 20-30 seconds. Then add 3-4 ice cubes and blend for an additional 30 seconds. Shake up your shake: By adding fresh or frozen fruits, peanut butter, flaxseed oil, coconut and other ingredients, you can make even more delicious shake. Stack your shake: Customize your gold standard 100% Casein shake by adding recovery products like creatine, glutamine and BCAA Powders. Spoon Stirred: If you forgot your shaker cup or don't have time to get out the blender, you can just add one heaping scoop of Gold Standard 100% Casein to a glass filled with 10-12 oz of cold water, milk or your favorite beverage. Then mix it up with a spoon for about 30 seconds or until powder is dissolved. Suggested Use: Consume enough protein to meet your daily protein requirements through a combination of high protein foods and protein supplements. For the best results, consume your daily protein allotment over several small meals spread evenly throughout the day.

The manufacturer’s directions, from the label.

Warnings on the label

  • Allergen Information: Contains milk and soy (Lecithin) ingredients.
  • Notice: Use this product as a food supplement only. Do not use for weight reduction.
  • Intended for healthy adults over the age of 18.

What no one has checked

Contents are declared by the manufacturer and are not verified by a regulator. Independent testing has repeatedly found amounts that differ from the label, and products that contain substances banned in sport. Third-party certification, where a product has it, is shown on this page.

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Details

BrandOptimum Nutrition
UPC7 48927 02423 4
NIH label ID308424
Label recorded2024-06-20

Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional