Carbohydrate Availability and microRNA Expression

Inclusion Criteria: * Men and women aged 18 - 39 years * Weight stable (±5 lbs) for at least 2 months prior to the start of the study * Body mass index (BMI) between 18.5-30 kg/m2 * Recreationally active based on assessment of physical activity history 2-4 days per week aerobic and/or resistance exercise * Refrain from taking any NSAIDS (i.e., aspirin, Advil®, Aleve®, Naprosyn®, or any aspirin-containing product for 10 days before and at least 5 days AFTER each muscle biopsy. (\*Tylenol® or acetaminophen is ok to use if needed for discomfort) * Refrain from the use of alcohol and nicotine for the duration of the study * Females must be on contraception (e.g., oral birth control, NuvaRing®, Depo Provera®, etc.) * Supervisor approved leave status for federal civilian employees working within the US Army Natick Soldier Systems Center Exclusion Criteria: * Metabolic or cardiovascular abnormalities, gastrointestinal disorders (i.e., kidney disease, diabetes, cardiovascular disease, etc.) * Disease or medication (i.e., diabetes medications, statins, corticosteroids, etc) that affects macronutrient utilization and/or the ability to participate in strenuous exercise * Allergies or intolerance to foods (including but not limited to lactose intolerance/milk allergy), vegetarian practices, or medications (including, but not limited to, lidocaine or phenylalanine) to be utilized in the study * Anemia (HCT \< 38) and Sickle Cell Anemia/Trait * Abnormal prothrombin time (PT)/ partial th…