I've wondered at Michelle Obama's decision to focus on diet and childhood obesity as the First Lady. But after absorbing the information I've linked below, I've come to the conclusion that no single message will have a more salutary effect on the future of American life than the call to change its catastrophically unhealthy diet.
Why catastrophically unhealthy? Because sucrose—cane sugar—and fructose (especially in the form of high fructose corn syrup) might be killing more people every year than cigarette-smoking. And sugar, in whatever form, starts killing us at a much earlier age.
From the soapbox: "Is Sugar Toxic?"
And (if you have 90 minutes):
The message is simple: Sucrose and fructose are poisonous. Eliminate them, as much as you can, from your diet. Over time they're as likely to kill you as smoking. Before killing you, they'll do what they're doing to much of the country: lead to obesity, hypertension, diabetes, heart disease, and cancer.