Ultimate Sport Nutrition Shop on Chula Vista's Third Avenue has supplied sports supplements from Suite B10 at 310 Third Avenue since the business launched inside a local gym in 2006. The store stocks protein powders, creatine, multivitamins, fish oil, and pre-workout formulas from national brands, maintaining the price-match policy and walk-in supplement guidance that first built its following among members at 24 Hour Fitness next door in the Third Avenue Village. A BBB-accredited operation with an A-plus rating since 2014, the shop expanded to a second retail location on Balboa Avenue in San Diego while keeping the Chula Vista flagship rooted on Third Avenue. Bilingual staff walk bodybuilders, endurance athletes, and general-wellness customers through macro breakdowns and ingredient labels, a consultation depth suited to the periodized training plans designed at facilities such as San Diego Strength and Wellness. Shelves organize inventory by goal — mass gain, lean cutting, recovery, and joint support — with vegan protein isolates, plant-based BCAAs, and collagen peptides stocked alongside traditional whey and casein concentrates.