NEW YORK In January, Sara Hall ran the fastest half-marathon in U.S. history. This after running the second fastest marathon in American history in December 2020. But that happened before Hall teamed up with MuscleTech, the internationally recognized sports nutrition brand known for ingredients and products that bring active nutrition and human potential together. With each second on a 26.2 mile course being the difference between a podium finish and the back of the pack, Hall will rely on Pure Series Proteins (only available at Target), Platinum Multi-Vitamin, Clear Muscle and Glutamine all of which will fuel her