单项选择题

we learn from the passage that olestra is a substance that ______.

A．contains plenty of nutrients
B．renders foods calorie -free while retaining their vitamins
C．makes foods easily digestible
D．makes foods fat -free while keeping them delicious

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热门试题

单项选择题

Why are nutritionists concerned about adding vitamins to olestra

A．It may lead to the over-consumption of vitamins.
B．People may be induced to eat more than is necessary.
C．The function of the intestines may be weakened.
D．It may trigger a new wave of fake food production.

单项选择题

What is a possible negative effect of olestra according to some critics

A．It may impair the digestive system.
B．It may affect the overall fat intake.
C．It may increase the risk of dancer.
D．It may spoil the consumers' appetite.