Brad,
I think this helps in answering your question.
I have to be honest more study has to be done, along with genetics and other health considerations before I start eating just a slice of bread.
lol


Eat Less, Live Longer, New Study Says
The Secret To Living Longer and Staying Healthy? - Newsweek.com
Eat Less, Live Longer? Gene Links Calorie Restriction To Longevity
Never Say Die: Eat Less -- Live Longer