A new study by researchers in Britain found that milk is better than either a sports drink or water because it is a source of high quality protein, carbohydrates, calcium and electrolytes.
To prove that milk is one of the most effective drinks to rehydrate with, Professor Alice Roberts from the University of Birmingham recruited a team of student volunteers to exercise with her, then rehydrate with three different drinks – milk, water and a sports drink. Milk stayed in the system for much longer than water or the sports drink.
The reason, she explains, is because milk releases very slowly into the small intestine, so it is absorbed much more gradually into the bloodstream, helping the body to retain fluid for longer. It also has a high number of electrolytes, including sodium and potassium, which are lost from the body when sweating.
Milk’s superpowers go beyond simply rehydrating you after a tough work-out, however. Another revelation featured in the programme is that although many people associate large quantities of dairy with putting on weight, research from the University of Copenhagen shows that in cultures with high-dairy diets, people actually aren’t as heavy as might be imagined.
In conclusion, the findings determined that milk-based drinks to be more effective rehydration options compared with traditional sports drinks. Though it might not sound appealing, next time you need to get hydrated, you may want to try hitting the dairy case.