FIRST LOOK: Martha Stewart's Milk Mustache

05/21/2008 at 09:00 AM EDT

Martha Stewart sports the milk mustache for the second time in a new ad campaign focusing on exercise, eating right and, naturally, drinking three glasses a day of low-fat or fat-free milk.

"I say it's time to focus on health and forgo fad diets," says Stewart, 66, who pours out health tips on the Web site.

Plus, check out behind-the-scenes video of the domestic doyenne's "Got Milk?" photo shoot.

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