Hi
karishma ,
Can you please help me with below question .
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?
1)Diets that are high in protein are often low in foods that help keep the immune system working effectively.
2)People whose diet is unusually high in protein often have other characteristics in common, some of which are
likely to cause insomnia.
3)Reducing the amount of protein in one's diet can be harmful.
4)People whose diets are unusually low in protein often experience insomnia.
5)Insomniacs who switched from high-protein diets to more moderate levels of protein intake have reported
that the change was so unpleasant that it worsened their insomnia.