Dismissing prudish advice, the first lady once again flaunted her buff arms — this time in a soup kitchen, where she dispensed some words of wisdom.

“Collect some fruits and vegetables; bring by some good healthy food,” she said. “We can provide this kind of healthy food for communities across the country, and we can do it by each of us lending a hand.”

What an unhealthy development, to hear the oft-quoted, much-admired first lady speaking this way.

Healthy refers to a person (or personified thing, such as a bank or an athletic team) in good health. When a baby is born, you ask, “Is it healthy?”

Healthful describes something that promotes good health, like fruits and vegetables.

It looks as though Mrs. Obama needs to spend less time lifting weights and more time reading Grammar Guard.