[Rennes Templar]

It appears that the analogy is based late life intervention; trees did better with more CO2, and animals do better with less food, but both results can be obtained late in life.
I am a proponent of CR (calorie reduction) to benefit overall health. I enjoy the benefits of it personally. The body spends a lot of energy on digestion. The less coming in, the less metabolic wear and tear. The key is to see that what food is eaten is balanced.

[Khurkris]

food combining, colonic irrigation, increase in enzymes (both metabolic & bacteriologic) and beer. the ingredients for a good long life.

of course money and sex help also...

[GSlob]

It mostly helps when one is a fly. But you have a point: the less coming in, (if it keeps coming out), the less one is full of it...