I'm very skeptical of the 2000kcals/day normal intake. Mankind has survived with far less than that, and I don't mean in mass hunger period. If it's like the

I'm very skeptical of the 2000kcals/day normal intake. Mankind has survived with far less than that, and I don't mean in mass hunger period. If it's like the 1,5l/day of water intake, which is the result of studies funded by... mineral water companies. It's not hard to believe big corporations in the food sector financing these studies through non-profit organizations.