You may wonder .. I myself / my cousins served food to my great grand father when I was 11 or 12 years and then to my grand father till he breathed his last in 1999 & grand mother till this Jan 2012 ...

GGF lived for 90 years ..they say, GF lived for 80 years and GM for 88 years .. without major ailment .. a simple village life.

The same type food my parents my family we are having ... so none of us is over weight ..

Some difference .. my father aged 72 /mother aged 67 got their hearts operated ..

I would say my family is still not worried much ...about changing our food type ..

But I value your concern for living long & healthy ..