Food & Nutrition

As people age we tend to become less active, and are more likely to gain weight. Those two characteristics can lead to lower muscle mass, increasing frailty and associated health problems.
As a busy working parent, I admit that I sometimes (ok, frequently) grab a granola bar as a substitute for lunch... and breakfast.
Why is it that some of the best public health measures, with proven effectiveness, are shunned by some people?  Of course, vaccines are the canonical example of this. Now, we can add pasteurization. 
It's almost boring to keep telling people about the safety of sucralose and other approved sweeteners because we've done it so many times (for example here
Much like the search for the Fountain of Youth is the search by our overweight population for the "best" way to lose weight. Is it the low carb diet, the grapefruit diet, or the Zone diet?
The obesity epidemic has helped focus attention on Americans' eating habits, with an eye to the extent to which they are associated with consumption of excess calories.
There has long been evidence that socioeconomic status has a positive and linear correlation with general health and even more specific medical conditions.
For 21st century dieters, is it time for the written food journal to go high tech?