According to recent studies, people whose diet is unusually high in protein are more likely to suffer from insomnia than people whose diet contains moderate amounts of protein.
It is therefore likely that a diet high in protein is a cause, though perhaps not the only cause, of insomnia.
Which of the following, if true, casts the most serious doubt on the conclusion drawn above?
B) People whose diet is unusually high in protein often have other characteristics in common, some of which are
...
It is therefore likely that a diet high in protein is a cause, though perhaps not the only cause, of insomnia.
Which of the following, if true, casts the most serious doubt on the conclusion drawn above?
B) People whose diet is unusually high in protein often have other characteristics in common, some of which are
...
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