What happened to laboratory rats and mice who were fed only 70 percent of their usual calories?
A) They died of starvation.
B) They became so weak that they could hardly move.
C) They lived much longer than rats normally do.
D) They became more susceptible to various diseases.

Question

Quizplus · Accepted Answer

Caloric restriction in laboratory rats and mice has been shown to significantly extend their lifespan compared to those fed a standard diet. This phenomenon has been widely studied and suggests that a lower calorie intake, while still providing essential nutrients, can have beneficial effects on longevity.

What Happened to Laboratory Rats and Mice Who Were Fed