Key points from article :
Analysis of 160 strains of fruit fly shows that lifespan & health-span are not linked under dietary restriction.
Lifespan and physical abilities of more than 50,000 flies were studied.
Nutrient-dependent changes in lifespan and age-related changes in physical activity to measure healthspan were measured.
97% strains showed some lifespan or healthspan extension in response to dietary restriction.
50% strains showed a significantly positive response to dietary restriction for both.
13% of the strains were more vigorous, yet died sooner with dietary restriction.
5% lived longer but spent more time in poor health.
32% of the strains showed no benefits or detriments to lifespan or healthspan.
"Dietary restriction works, but may not be the panacea for those wanting to extend healthspan, delay age-related diseases, and extend lifespan," - Pankaj Kapahi, senior author on the paper.
Research by Buck Institute for Research on Aging published in Current Biology.
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