Q: Dear Dr. Mao,
How can what we eat affect how long we live?
A: Our food is our fuel. It is the essence that replenishes our energetic reserves and gives us the much-needed source of life-sustaining nutrients. Furthermore, our food is something that we willingly put inside of ourselves. Most of us will flinch at the notion of lathering pesticides on our skin, yet we readily accept them in the form of absorbed elements in our daily produce. We cringe at the notion of hormone and steroid use, but consume meats that may contain high levels of estrogen and other hormone byproducts. It is very important to make sure that we put the best grade fuel in our bodies, the fuel that provides a good sustainable quality of nutrition with no adverse effects on our internal organs and tissues.
One more small piece of wisdom: quantity of food has as much to do with gastrointestinal health as quality. Eat less and live longer.