Research shows negative health effects of drinking soda after exercise

A study in the American Journal of Physiology — Regulatory, Integrative and Comparative Physiology revealed that participants who consumed a caffeinated soft drink after a 45-minute exercise had reduced glomerular filtration rate and increased creatinine levels in the blood, which are markers of acute kidney injury, compared with those who drank water. Researchers evaluated 12 healthy, physically fit adults, mean age of 24, and also found higher levels of vasopressin, an antidiuretic hormone that raises blood pressure, and mild dehydration among those who consumed soda after exercise.