title: Length of life and caloric intake.
mesh_terms: D000367:Age Factors; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D004032:Diet; D005508:Food Deprivation; D008136:Longevity; D008297:Male; D051381:Rats; D013997:Time Factors; D014886:Weaning