THE 5-FACTOR WORLD DIET: Weight-Loss Secrets From the Healthiest Nations on the Planet -Unlocked! by Harley Pasternak, with Laura Moser (Ballantine Books, $25).

Pasternak, a "trainer to the stars," presents his third "5-Factor" book ... and it's intriguing.

The nutritionist analyzes diet/fitness habits of the 10 healthiest nations, from Japan to Greece (uh, not us ... we're No. 50). And explains how to adopt them.

THE SCOOP There's much to emulate: Japanese eat nearly 30 items daily, but their diet is more balanced and less caloric than ours. (Try hara hachi bunme, eating until you're 80 percent full - it might be enough.) Swedes eat berries, dark bread and oily fish and exercise in the cold; the French "indulge, but always in moderation." And the Spanish find it unthinkable to sleep fewer than eight hours.

THE BOTTOM LINE From 120-plus, delicious-sounding international recipes to "active transportation" tips - um, try walking - this unusual take on healthy lifestyles might get you off the couch. And out of the drive-through line.

Nassau child abuse enforcement ... Egg prices on LI ... Chow down in Charleston Credit: Newsday

Snowy mix hits region ... Schools delay openings ... What's future of NUMC? ... Pete's coming back to Mets

Nassau child abuse enforcement ... Egg prices on LI ... Chow down in Charleston Credit: Newsday

Snowy mix hits region ... Schools delay openings ... What's future of NUMC? ... Pete's coming back to Mets

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