At least for the lactose intolerance, it completely depends on the population. It's fairly well known (and studied) that Asian populations have much much higher rates of lactose intolerance (thus the love of soy milk). The wiki article on lactose intolerance puts 75% of the global adult population at some degree of lactose intolerance.
Of course, if the majority of the people you know are white (European), then of course 70% looks fudged.
It's likely the same for many of the other stats, though I can't say.
Of course, if the majority of the people you know are white (European), then of course 70% looks fudged.
It's likely the same for many of the other stats, though I can't say.