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Optimum Nutrition Optimum Nutrition Gold Standard Pre-Workout
SPECIMEN #OPTIMUM-
Pre-WorkoutOptimum Nutrition

Optimum Nutrition Gold Standard Pre-Workout

Pre-workout for energy, strength, and some endurance.. The score reflects the strong creatine and caffeine doses, which are crucial for a pre-workout. However, the severe underdosing of L-Citrulline and Beta-Alanine, along with other underdosed ingredients and proprietary blends, significantly detracts from its overall effectiveness and transparency.

6.5/10
GOOD

Good energy profile with caffeine at 175mg (close to optimal) and creatine at 3g. But the pump and endurance ingredients are significantly underdosed. L-Citrulline at 750mg is only 12% of the 6g optimal. Beta-Alanine at 1.5g is 47% of the 3.2g optimal. These are the leading ingredients for a pre-workout beyond stimulation, and both fall well short.

19 ingredientsPowder30 servings
Evidence
7.0
Dosing
2.4
Synergy
6.0
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What We Like

  • Clinical dose of Creatine Monohydrate.
  • Effective, moderate dose of Caffeine.
  • Good range of B vitamins.

Watch Out For

  • Severely underdosed L-Citrulline for pumps.
  • Underdosed Beta-Alanine for acute performance.
  • Underdosed N-Acetyl L-Tyrosine and Acetyl-L-Carnitine HCl.
  • Proprietary blends hide ingredient doses.

What We Analyzed

Optimum Nutrition Gold Standard Pre-Workout Supplement Facts

Verified Supplement Facts

Every dose checked against clinical research

We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.

32 ingredients analyzed1 at clinical doses11 underdosed

Source: Official product page

Ingredient Breakdown

1 clinical1 adequate11 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Vitamin D310.0
12.5 mcgUNDERDOSED
13%
12.5 mcg

of 4000IU

UNDERDOSED
13%
Thiamin9.0
2 mgUNDERDOSED
4%
2 mg

of 50mg

UNDERDOSED
4%
Niacin8.0
20 mgUNDERDOSED
20%
20 mg

of 100mg

UNDERDOSED
20%
Vitamin B69.0
2 mgUNDERDOSED
8%
2 mg

of 25mg

UNDERDOSED
8%
Folate10.0
340 mcg DFE (200 mcg Folic Acid)UNDERDOSED
43%
340 mcg DFE (200 mcg Folic Acid)

of 800mcg

UNDERDOSED
43%
Vitamin B1210.0
10 mcgUNDERDOSED
1%
10 mcg

of 1000mcg

UNDERDOSED
1%
Pantothenic Acid7.0
10 mgUNDERDOSED
10%
10 mg

of 100mg

UNDERDOSED
10%
Calcium9.0
50 mgUNDERDOSED
5%
50 mg

of 1000mg

UNDERDOSED
5%
In our database (click to learn more) Not yet reviewed
Other Ingredients(inactive)

Natural and Artificial Flavor, Citric Acid, Malic Acid, Calcium Silicate, Silicon Dioxide, Gum Blend, Cellulose Gum, Xanthan Gum, Carrageenan, Sucralose, Tartaric Acid, Acesulfame Potassium, Blue 1

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