Threshold
Optimum Nutrition Threshold is a pre-workout supplement formulated with Beta-Alanine and L-Histidine. This product also provides key minerals such as Magnesium, Phosphorus, Sodium, and Potassium. Each serving delivers 1.6 grams of Beta-Alanine and 550 mg of L-Histidine.
About This Product
Threshold by Optimum Nutrition is a pre-workout supplement containing 8 active ingredients. It has earned an N+ Score of 43/100 (Grade F).
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Fully transparent label with individual ingredient amounts disclosed
- +Broad ingredient diversity exceeding category norms
Weaknesses
- −Several ingredients below clinically effective doses
- −Missing several expected ingredients for its category
Ingredient Analysis (8 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Calories | — | N/A |
| Magnesium | 15.000 mg | Under |
| Total Carbohydrates | — | N/A |
| Sodium | 20.000 mg | N/A |
| Potassium | 55.000 mg | Under |
| Phosphorus | 70.000 mg | Under |
| Beta-Alanine | 1.600 g | Under |
| L-Histidine | 550.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.