I often advise my parents to cut colas and fruit juices.
Well, here is another vindication of that wisdom.
According to a very recent Harvard Research, Sugary drinks can lead to early periods
Colas and Sugary drinks have a high glycemic index than naturally sweetened drinks such as fruit juices. High-glycemic foods result in a rapid increase in insulin concentrations in the body. Higher insulin concentrations can result in higher concentrations of sex hormones and large alterations in the concentrations of these hormones circulating in the body has been linked to periods starting earlier. Greater caffeine intake has also been associated with earlier periods.