Slideshow: Best and Worst Appetizers

It may be your waistline that blossoms if you're a fan of fried onions. The onion blossom at one popular restaurant has 1,950 calories, 155 grams (g) of fat, and 3,840 milligrams (mg) of sodium -- more than double the daily sodium limit for healthy adults.

Grilled vegetable kebabs are a great low-calorie alternative to fried onions. If this isn't on the menu, ask for a side of grilled vegetables as your appetizer. Veggie kabobs are also easy to make: Skewer onions, red and green bell peppers, mushrooms, tomatoes, and zucchini. Brush with a lower-fat garlic and herb marinade. Two large kebabs will have about 75 calories.

Don't let the word "spinach" fool you. Traditional spinach artichoke dip is not a healthy starter. A typical order has about 1,600 calories, 100 grams of fat, and 2,500 milligrams of sodium. The trouble is the cream base, which is loaded with saturated fat. If you make this dip at home, use a base of nonfat Greek yogurt instead.

The best appetizers are low in calories, but satisfying enough to curb how much you eat during the rest of your meal. Salads made with spinach or other leafy greens do this very well. Studies suggest you'll eat about 10% less during a meal if you start off with salad. A cup of fresh spinach with a tablespoon of vinaigrette has about 80 calories.

Cheese fries are french fries with melted cheese on top. Variations may include bacon bits or ranch dressing. A full order packs up to 2,000 calories, 134 grams of fat, and 2,800 milligrams of sodium, which is more sodium than you should eat in a whole day.

Use appetizers to add healthy foods you might be eating too little of. Seared crab cakes -- pan fried, not deep fried -- offer an appealing way to get more seafood into your diet. Served with chili sauce, a typical crab cake has about 300 calories, 20 g of fat, and 960 mg sodium.

They're small, but sliders pack in a lot of calories. A typical restaurant order includes three mini-burgers with cheese and sauce, totaling 1,270 calories, 82 g of fat, and 2,310 mg of sodium.

When you're craving a meaty appetizer, opt for beef skewers. In Asian restaurants, this may be listed as beef satay: skewers of beef with peanut sauce. At home, you can grill skewers of lean beef with onions, garlic, and hoisin, soy, and barbecue sauces. A quarter-pound serving has about 130 calories, 5 g of fat, and 803 mg sodium.

Potato skins filled with melted cheese, meats, and sour cream are as fattening as they are tempting. At more than 150 calories a pop, the trick to enjoying these is to have just one. Devour a whole plateful, and you'll take in about 1,340 calories, 94 g of fat, and 1,850 mg of sodium.

Stuffing mushrooms instead of potato skins helps keep the portion size down. Mushroom caps filled with cheese and breadcrumbs have less than 50 calories each. That means you can eat half a dozen and still keep your appetizer under 300 calories, along with 19 grams of fat, and 720 mg of sodium.

Like many types of seafood, squid can be a good choice. But not when it's breaded, fried, and drenched in calories and fat. A typical restaurant portion contains about 900 calories, 54 g of fat, and 2,300 mg of sodium, not including any sauce.

Shrimp cocktail is very low in saturated fat and calories. It's also a good source of heart-healthy omega-3 fatty acids. To keep the calorie count low, stick to tomato-based sauce. A serving of shrimp with cocktail sauce has about 140 calories.

Clam chowder sounds like it should be healthy, especially as a way to take in some extra seafood. Unfortunately, the New England variety is made with a fattening cream base. A 12-ounce bowl has about 630 calories, 54 g of fat, and 890 mg of sodium.

Having a bowl of soup can curb how much you eat during the rest of the meal. The key is choosing a low-calorie option, such as a tomato-based vegetable soup. A 12-ounce bowl has about 160 calories, 3.5 grams of fat, and 1,240 mg sodium. Stay away from cream-based vegetable soups, which are higher in calories and saturated fats. When buying canned soup, look for those marked "low in sodium."

A typical appetizer portion of buffalo chicken wings has more than 700 calories and 40 g of fat. Ranch sauce adds another 200 calories and 20 g of fat. That's 900 calories and 60 g of fat, plus more than 2,000 mg of sodium, before you even get to your main meal.

If you're craving spicy chicken, skip the wings and try lettuce wraps. You can make these at home by wrapping diced spicy chicken and vegetables in a lettuce leaf. Each wrap has 160 calories and 7 g of fat. If you order this appetizer at a restaurant, share them. A plate of four wraps has 640 calories, 28 g of fat, and 650 mg sodium.

There's something about a stick of warm, gooey cheese that's hard to resist, until you know the nutritional facts. A typical order has 930 calories, 48 g of fat, and 2,640 mg of sodium. That puts mozzarella sticks pretty much on par with chicken wings.

These green pods, known as edamame, are a popular appetizer in Asian restaurants. It's fun to open the pods and pop the young soybeans into your mouth. One serving has 122 calories and 5 grams of fat.

They may be a festive way to start an evening out, but nachos and cheese dip are among the least healthy appetizer choices. Eat an entire order yourself, and you'll take in 1,680 calories, 107 g of fat, and 4,270 mg of sodium, which may be nearly twice as much sodium as you should get in a day.

For a homemade alternative to chips and dip,  cut up red and green bell peppers, or other veggies, and use them like chips for dipping in salsa. This is a fun way to sneak more vegetables into your diet. You can dip a whole pepper's worth of "chips" and stay under 50 calories.