EnergySource 4:1 is an all-in-one sports drink for use both during and after exercise. It contains four parts carbohydrate to one part whey protein isolate and key electrolytes. EnergySource 4:1 is the Pro’s choice for hard training and multi-day endurance events. Use 4:1 when you anticipate a big step up in training intensity or volume.
The ingredients in 4:1 help sustain performance during extended exercise and help maintain hydration by enhancing the absorption of water. Whey Isolate is a high quality source of protein which contributes to the maintenance and growth of muscle mass; this can result in stronger, more resilient muscle.
•High quality protein contributes to the maintenance and growth of muscle mass.
•Carbohydrates with electrolytes for endurance performance.
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