Threshold by Optimum Nutrition
During exercise, and especially high-intensity training, glucose and glycogen are broken down for energy. In the process, hydrogen ions (H+) are also produced within the muscles. H+ accumulation causes the muscles to become more acidic and ultimately leads to fatigue. Packed with Beta-Alanine, Histidine, and Phosphates, our Threshold™ formula is designed to help boost your intramuscular buffering system so that you can train harder, longer.
Beyond The Basics
- 1.6 grams of Beta Alanine
- 550 mg of L-Histidine
- 4 Mineral Electrolytes
- Supports Carnosine Synthesis
Suggested Use
Add 1 scoop of Threshold to a glass or shaker cup filled with 6-8 oz. of cold water of your favorite beverage. Mix or shake thoroughly for 15-20 seconds or until powder is completely dissolved.
Consume one serving first thing in the morning and a second serving approximately 30 minutes before your workout (or mid-afternoon on non-training days).
The first few times that you use it, Threshold may cause a tingling sensation on your skin. With continued use, the intensity of the sensation will decrease or disappear. For best results, use Threshold continuously for at least 8 weeks.
Ingredients

About Optimum Nutrition
Optimum Nutrition, Inc. is a leading manufacturer of nutritional supplements, owning and operating three brands (Optimum Nutrition, American Body Building, and Science Foods) with a comprehensive line of products across multiple categories. With 4 state-of-the-art production facilities occupying over 500,000 square feet of operating space, Optimum Nutrition is the only sports nutrition company in the industry to manufacture items in every product category. Whether it’s nutritional bars or bites, protein powders, ready-to-drink sports beverages, or vitamins, essential minerals, and herbs, Optimum Nutrition is able to control the integrity of all of its products through in-house manufacturing. Supported by Costello’s Health Distributors (Optimum Nutrition’s sister distribution
600 North Commerce Street
Ixonia,
WI,
60504
http://www.optimumnutrition.com
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