>>14409023>Puberty starts in response to bodyfat. In times and places where people are healthy to overweight, it starts earlier, in times and places where they are malnourished, it starts later. There is no fixed age to puberty and there has never been.This^. A high carb diet is increasing the obesity rates and causing earlier puberty.
Also, the increased use of petroleum products for food packaging that leaches hormone-mimicking chemicals into the food, helps accelerate the onset of puberty.