RS400® is Oxalate-Free Red Spinach Extract Built for Athletic Performance. Whether you’re training for endurance, pushing through high-intensity intervals, or simply demanding more from your body, RS400® is designed to meet you there. Experience powerful nitric-oxide support with no added sugar and no unnecessary ingredients—just clean performance support when it matters most. Clinically Studied:The red spinach used in RS400® has been clinically tested for efficacy at Samford University and the University of Alabama, Birmingham. Measured performance support:1 serving of RS400® = 400 mg nitrate (30 servings per jar) Harness Nature’s Power:RS400® is a potent, all-natural performance superfood made from red spinach—containing significantly higher levels of naturally occurring nitrates than beets and other vegetable sources. Made to support demanding training and recovery without stimulants. Support Healthy Blood Flow During Exercise:Red spinach extract delivers a concentrated nitrate profile that supports nitric-oxide production, helping to support optimized circulation when your muscles need it most. Enhance Athletic Performance:Take RS400® about 60 minutes before training or competition to support workout intensity and sustained output—whether on the road, trail, track, or gym floor. One Pure Ingredient:RS400® contains a single ingredient: pure red spinach extract powder. No fillers, artificial or natural flavors, sweeteners, or added sugars—just clean, functional nutrition. Train Hard. Recover Smarter:Use RS400® daily to support training recovery and resilience, helping you bounce back faster and stay consistent week after week. Like a well-trained athlete, red spinach thrives under pressure—growing at high altitudes, in strong winds, and in dry conditions. That natural toughness is exactly what RS400® delivers to athletes who expect more from their bodies.
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