Is this how the math works? It feels weird - I remember recommended intake for me being around 2000 or something (for a regular 30y.o semi-active male), which would make this require getting into negative calorie intake.
I know literally nothing about this, though. Or are the 70 000 calories factored from how much a body burns? So, it's basically impossible in 30 days for someone whose daily burn-rate is lower than 2300, based on his age/sex/activity?