Caffeine, Sugar and Aspartame: Coca-Cola and Pepsi have been under lawsuits in some of the developed countries against using Aspartame which causes several diseases.
Kidney Failures: Diet versions of Coca-Cola or Pepsi have proved to produce more impairment than the sweet versions.
Metabolism Level Decreases: A can of Coke can surely be tasty but it really decreases the metabolism and helps in destroying the fat-burning enzymes in no time.
Obesity and Diabetes: Obesity was never a major problem when Coca-Cola or similar products were not introduced. But with an advent of these products, a major portion of the population is turning obese
Reproduction problems: A research has shown that the cans of Coke or Pepsi are coated with such chemicals that may lead to reproduction problems with regular consumption.
Caffeine: Cold drinks also contain caffeine. Some of the side effects of energy drinks due to caffeine are Insomnia, High Blood Pressure, Osteoporosis, Infertility, Heart Diseases, and Ulcers.