If you're in search of beautifully healthy skin, hair and nails, you may be wasting money on expensive beauty products when the most effective secret --beauty foods -- already exists in your kitchen.

That's what registered dietician and author of The Beauty Diet, Lisa Drayer, tells StyleList in this exclusive video interview.

Find out exactly what foods to eat for glowing skin, stronger nails and healthier hair, as well as a one-day meal plan you can jump-start tomorrow with nature's most beauty-inducing foods.

And you'll want to stay away from the beauty-wrecking foods Drayer mentions too. We didn't know that this common drink can cloud your complexion?

To find out if you're imbibing it, watch the video! And for more tips on achieving a gorgeous complexion, check out our Healthy, Beautiful You section.