Sports nutrition · ON Optimum Nutrition

Gold Standard Natural 100% Casein Chocolate Creme

Why ON Optimum Nutrition casein protein?

  • 24 g protein per serving
  • 64% protein by weight
  • Gold Standard Natural 100% Casein is also free of artificial flavors, sweeteners, and synthetic colors and uses only premium micellar caseins to create a protein formula that's truly time-released.
  • Beyond the basics No artificial flavors, sweeteners, or synthetic colors

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

Supplement Facts

Serving size 1 scoop (37.5 g)

Total Fat1.5 g

Cholesterol20 mg

Sodium270 mg

Total Carbohydrates8 g

Protein24 g

Vitamin A0 NP

Calcium0 NP

Full panel ↓

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

24gProtein48% DV
1.5gTotal Fat2% DV
270mgSodium11% DV
8gTotal Carbohydrates3% DV

Per serving · 1 scoop (37.5 g)

At a glance

From the label as printed · NIH DSLD

What it is

Protein powder

Per serving

24 g protein

64% protein by weight — our arithmetic on the label’s own numbers

48 servings per container

How to take it

For a milder tasting, less sweet shake, use 12-14 oz. liquid per scoop.

One serving: 1 scoop (37.5 g)

Full directions ↓
Label warning

Allergen information: Contains milk and soy (lecithin) ingredients.

All warnings ↓
Independent testing

No third-party testing mark on the label

Marks like NSF Certified for Sport or Informed Sport mean batches are tested for banned substances. Their absence does not mean a product is contaminated — only that nobody independent has said it isn’t.

Good to know
  • Sports nutrition — claims are the manufacturer’s
  • Gold Standard Natural 100% Casein is also free of artificial flavors, sweeteners, and synthetic colors and uses only premium micellar caseins to create a protein formula that's truly time-released.
  • Beyond the basics No artificial flavors, sweeteners, or synthetic colors
  • No artificial flavors or sweeteners
  • Adult (18 - 50 Years)

Supplement Facts

Supplement Facts

Serving size 1 scoop (37.5 g)

Servings per container 48

Amount per serving% DV
Total Fat1.5 g2%
Saturated Fat0.5 g3%
Trans Fat0 g
Cholesterol20 mg7%
Sodium270 mg11%
Total Carbohydrates8 g3%
Dietary Fiber1 g4%
Sugar4 g
Protein24 g48%
Vitamin A0 NP0%
Calcium0 NP40%
Vitamin C0 NP0%
Iron0 NP2%

† 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.
  • Cholesterol20 mg7%
  • Protein24 g48%
  • Vitamin A0 NP0%
  • Calcium0 NP40%
  • Vitamin C0 NP0%
  • Iron0 NP2%

Other ingredients: Micellar Casein, Cocoa, Natural Flavors, Honey, Powder, evaporated Cane juice, Salt, Lecithin, Cellulose Gum, Reb A

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

  • Suggested use: Consume approximately 1 gram of protein per pound of body weight per day through a combination of high protein foods and supplements. For best results, consume your daily protein allotment over several small meals spread evenly throughout the day. Tip: Try using "slower" Gold Standard Natural 100% Casein with "faster" proteins like Natural 100% Whey Gold Standard or Natural Pro Complex at different times for maximum effectiveness. Take Gold Standard Natural 100% Casein immediately before bed and in-between meals when delayed protein delivery is desired. Drink Natural 100% Whey Gold Standard or Natural Pro Complex proteins before and immediately after workouts for a rapid "shot" of amino acids.
  • Directions: Shaker: Using a shaker cup is the easiest and most convenient way to mix up a consistently great casein shake every time. Just add one rounded scoop of Gold Standard Natural 100% Casein to your shaker cup and then pour in 10-12 oz of your preferred beverage. Cover and shake for 25-30 seconds. Tip: Adjust the intensity of your Gold Standard Natural 100% Casein by varying the amount of liquid that you use to prepare it. For a bolder flavor with slightly more body and sweetness, mix one scoop with 8-12 oz of water, milk, or your favorite beverage. For a milder tasting, less sweet shake, use 12-14 oz. liquid per scoop. Blender: Add one rounded scoop of Gold Standard Natural 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 a few high-energy ingredients to your shake you can blend up a delicious meal: try adding fresh or frozen fruits (strawberries, bananas, peaches, etc.), peanut butter, flaxseed oil, yogurt, coconut, slivered almonds, or other ingredients. Stack your shake: By adding supplements like Micronized creatine, glutamine, taurine, and/or instantized BCAA powders, you can make Gold Standard Natural 100% Casein an even more powerful recovery product. Spoon stirred: If you forgot your shaker cup or don't have time to get out the blender, you can just add one rounded scoop of Gold Standard Natural 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.

The manufacturer’s directions, from the label.

Warnings on the label

  • Allergen information: Contains milk and soy (lecithin) ingredients.
  • Notice: Do not use as a sole source of nutrition for weight loss or maintenance.
  • Keep out of reach of children. Check with a qualified healthcare professional before taking this product if you are pregnant, nursing a baby, or under 18 years of age.
  • Check with a qualified healthcare professional before taking this product if you are pregnant, nursing a baby, or under 18 years of age.

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.

Compare with similar products

Details

BrandON Optimum Nutrition
UPC7 48927 02424 1
NIH label ID308421
Label recorded2024-06-20

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