The Pro’s choice for hard training and multi day racing
High quality protein contributes to the maintenance and growth of muscle mass
Carbohydrates with electrolytes for endurance performance
Helps maintain hydration during exercise
The carbohydrate content of 4:1 is 2:1 fructose
Light tasting and refreshing
Proven in the World’s toughest endurance events
No gluten-containing ingredients
With natural flavours. Free from artificial colours, preservatives or sweeteners.
EnergySource 4:1 is an all-in-one sports drink for use both DURING and AFTER exercise. It contains 4 parts carbohydrate to 1 part whey protein isolate and key electrolytes. 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, such as a training camp.
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. Protein contributes to the maintenance and growth of muscle mass. This can result in stronger, more resilient muscle.
Whey Protein Isolate
The whey protein isolate in 4:1 is the very highest quality. The Food & Agricultural Organisation have an internationally recognised method to compare the quality of various proteins. This is known as the Protein Digestibility Corrected Amino Acid Score (PDCAAS). An ideal protein will have a PDCAAS score of 1.0. The Protein used in 4:1 has a even higher score of 1.14. It’s also high in Leucine, an amino acid.
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