Larraine Perri

Feel-good food: New research shows the vitamin C in acorn squash may help boost your mood.

One pepper has nearly a day's worth of vitamin A, an antioxidant key to healthy skin and teeth.

Eggplants are sensitive to cold; protect them in plastic wrap before refrigerating.

Choose portobello caps with dry, firm gills—damp and soft ones mean the mushrooms are old.

Delicately flavored sole is a dieter's BFF, with only 73 calories per 3-ounce fillet.

Heart-healthy fats in salmon also help your skin stay healthy.

Mild mahi Mahi takes on the flavors of our zesty marinade.

No-fry zone: We let the fish 'n' chips fave go au naturel.

Can't find Arctic char? Salmon works just as well. Opt for green (aka French) lentils, which hold their shape better when tossed into a salad.

Give your loved ones a sniffle-free holiday season. Pecans deliver ample magnesium, a mineral that helps strengthen the immune system.

Chocolaty almonds are better than a gift certificate for a facial. Vitamin E in the nuts gives skin a healthy glow, and chocolate— well, do we really need to sell you on that?

Even the girl who has it all could use an energy boost. Walnuts' protein will keep her going strong.

Offer your pals an excuse to snack and relax. Pistachios' potassium can lower levels of the stress hormone cortisol. Get ready to hear "Mmm…ahhh."