A 2019 study published in the European Journal of Sport Science found that milk contributes to post-exercise muscle synthesis and re-hydration, as well as aiding in post-exercise soreness.
Research has shown that ingestion of milk post-exercise has the potential to beneficially impact both acute recovery and chronic training adaptation. Milk augments post-exercise muscle protein synthesis and rehydration, it also can contribute to post-exercise glycogen resynthesis, and attenuates post-exercise muscle soreness/function losses. For these aspects of recovery, milk is at least comparable and often out-performs most commercially available recovery drinks, but is available at a fraction of the cost, making it a cheap and easy option to facilitate post-exercise recovery.
Milk consumed post-exercise has also been shown to attenuate subsequent energy intake and may lead to more favourable body composition changes with exercise training. This means that those exercising for weight management purposes might be able to beneficially influence post-exercise recovery, whilst maintaining the energy deficit created by exercise.
The Haelen® method treats milk with a gentle cold method rather than through intense heat through pasteurisation, meaning improved flavour and nutrition which is lost to traditional processing.