Women in particular are susceptible to iron deficiency, some symptoms of which are irritability, fatigue, depression and memory problems. Red meats are the best source of iron, but chicken and fish are good options, too.

Just when that shellfish gets you in the mood for love, will garlic breath get in the way? While we don't want to squelch the romantic vibe, garlic is rich in selenium, another mineral that makes you smile when you get enough of it. So give your food some kick -- just be sure to carry some breath mints.

Shellfish -- and oysters in particular -- are high in zinc, an essential mineral that helps to regulate mood. But wait, there's more! Zinc is also a key ingredient for the production of testosterone, which amps up your libido. So you'll be even happier after getting a boost in the bedroom!

He was strong to the finish, and probably smiling when he got there, too. That's because spinach, Popeye's favorite meal, is also a great source of folic acid. The vitamin may reduce the high levels of homocysteine associated with depression.

Your favorite snack foods, because they contain tryptophan, may boost your spirits as you munch 'em. (Note: Tryptophan also helps to regulate your appetite and helps you sleep better.) To get the most nutritional value, it's best to eat them raw. Toss them in salads or add them to soups, baked goods and casseroles.

We all know about the foods that are good for you and foods that are bad for you. We just don't always listen. Eating healthy -- and cutting out the crap -- will save your life.