This research study explores how different forms of carbohydrates, such as a mouth rinse (MR) and dissolvable strip (DS), affect running performance. Carbohydrates are the body's main energy source during intense activities like running. The study will have four visits. The first visit includes signing consent forms and learning about MR and DS. The next three visits involve a 12.8 km run on a treadmill, with different carbohydrate forms used each time. Each visit is spaced at least 5 days apart. The study is held at the Human Nutrition Lab at the University of Georgia, Athens.

• The study lasts for four visits, each spaced a minimum of 5 days apart.
• Participants must be 18-45 years old, with regular endurance training and a normal BMI.
• Compensation details are not mentioned, but participation involves multiple treadmill runs.

Eligibility requires being an active athlete and not on a low-carb diet. Exclusions include certain health conditions, medications, and pregnancy. Participants must pass a Physical Activity Readiness Questionnaire if they are 35 or older. This study helps understand how carbohydrate intake can enhance exercise performance. Women will be tested during a specific phase of their menstrual cycle to ensure consistent results.