Dietitians like to say that there's no such thing as a “bad” food. It's all a matter of portion and frequency. However, even they have to admit that a few foods have no redeeming value and we just have to say “no” to them.

Steer clear of these nutritional disasters found around San Diego.

Nachos with melted cheese. “Nachos are the king of nutrition no-nos. There's just way too much fat, calories and sodium,” says Linda Copp, registered dietitian and instructor of nutrition at San Diego State University.

A 12-ounce serving (about 40 chips) of nachos swimming in a pool of neon melted cheese is more than 1,700 calories and 95 grams of fat, according to calorie-count.com. If that's not bad enough, that same serving of nachos has 2,700 milligrams of sodium, says Copp, noting that a whole day's recommended sodium allowance is only 2,300 milligrams.

Buttered movie popcorn. Forget horror flicks. What's really scary is the damage this stuff can do to your arteries. A jumbo tub of buttered movie popcorn has 1,700 calories and 126 grams of fat, of which 73 grams is saturated fat.

Giant muffins and wedges of coffee cake sold at mall coffee carts. The size of footballs, these baked goods are high in fat and calories. A Triple Berry Cobbler Muffin at Starbucks has 450 calories and 18 grams of fat, while a hefty chunk of its Classic Coffee Cake has 440 calories and 21 grams of fat.

A Cinnabon roll sold at airports and malls. A Classic Cinnabon roll has 730 calories and 24 grams of fat, according to calorie-count.com. If you throw caution (and all good nutrition sense) to the wind and opt for a Pecanbon, the cinnamon roll topped with pecans and smothered in sweet caramel frosting, you end up with a heart-stopping 1,100 calories and 56 grams of fat. Have paramedics standing by.

Individual pizzas. A 6-inch Pizza Hut Personal Pan Supreme Pizza has 710 calories with 34 grams of fat and 1,800 milligrams of sodium. It's really not that personal, so share it with friends.

Chili cheese fries. The nutritional data for this sadistic snack varies according to serving size and who makes it. But any way you look at it, it's a nosh to avoid. According to dietfacts.com, Jack in the Box makes a 236-gram serving with 630 calories, 40 grams of fat and 1,640 milligrams of sodium; Carl's Jr. has a 340-gram version with 920 calories, 51 grams of fat and 1,030 milligrams of sodium; and Del Taco's 298-gram serving has 670 calories, 46 grams of fat and 880 milligrams of sodium.

The garlic fries offered at ballparks are no nutritional bargain, either. An order of the smelly snack has 490 calories and 28 grams of fat, says medicinenet.com.