EnergySource 4:1

EnergySource 4:1 can be purchased in either a 1.6kg Tub or a 12 x 47g box of sachets. Select from the options below.



10 days

Product Description

ALL IN ONE sports drink for use during & after exercise.

Key features

  • 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.

As part of our Drugs Free policy, we hold stock of products tested for banned substances. If you require tested products then please select “WADA tested” product. This will be shipped with a certificate from our accredited lab. Note, we do not use banned ingredients and have never had a failed test.

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.


“The mixed fruit flavor is fresh, tasty and the whey protein aids recovery”
Mountain Biking UK, June 2012

“High5’s 4:1 energy source contains a mix of maltodextrin and fructose sugar sources, as recent research has revealed that fuel uptake can be maximized if multiple sources of carbohydrates are taken on board together”
Cycling Fitness, Summer 2011

Dosage & Usage

If you don’t intend to use 4:1 for all of your training,  it is particularly useful if you anticipate a big step-change in mileage, such as a training camp. It’s also fantastic for multi-day endurance racing, as the carbohydrate content is standard 2:1 fructose EnergySourceFind out more in the Nutrition Guides section. 

The electrolyte levels in 4:1 should be adequate for most race conditions. However, when sweat rates are very high, we recommend adding a  ZERO (Neutral) tab to every 500ml of 4:1 to boost the electrolyte content further.

Servings per 1.6kg Jar: 34 x 500ml

Nutritionals & Allergens