First Endurance OptygenHP Flavor:Plain While the emphasis for exercise

While the emphasis for exercise is usually on high carbohydrate intake

We take this product daily when on the ketogenic diet

but it can also do so in quantities that will have a massive impact on your performance

It also contains glutamine

First Endurance OptygenHP Flavor:Plain While the emphasis for exerciseFirst Endurance names this "the ultimate endurance supplement." Why? The OptygenHP is the new and improved Optygen formula and features their exclusive OptyMax Proprietary Matrix. Clinical research on elite endurance athletes shows an increase in VO2max, an increase in the bodys ability to adapt to high levels of physical stress, an increase in anaerobic threshold, and a reduction in lactic acid. These studies showed: A 26% decrease in cortisol levels