1. Mayonnaise
It's white, it's goopy -- and it's really easy for the calories and grams of fat to add up when you're slathering on the mayonnaise.
The truth is that regular mayo isn't too bad, if you're talking about a teaspoon or two. But most mayo users spread it on thicker than that. And if you're a true mayonnaise lover, you can rack up 360 calories and 40 grams of fat in a 1/4-cup serving.
2. Soda and Other Sweet Drinks
Sugary drinks are everywhere. Not only are they standard fare in restaurants and vending machines, but the drinks sold in supermarkets are usually sweetened as well (bottled teas, fruit drinks, sports and energy drinks, etc.).
3. Alcoholic Beverages
Not only is it possible to drink too much and abuse alcohol, but from a nutritional perspective, there are definitely better beverages you can have in your fridge.
Alcohol calories are empty calories because the body can't use them as energy. The liver is forced to break alcohol down into fatty acids, which then accumulate in the liver. In fact, fat accumulation can be seen in the liver after a single night of heavy drinking. Liver cells and brain cells actually die with excessive exposure to alcohol.
4. Processed Lunch Meat
Lunch meats, including deli cold cuts, bologna, and ham, make the unhealthy list because they contain lots of sodium and sometimes fat, as well as some preservatives like nitrites.
5. Hot Dogs and Sausage
Also part of the processed meat category, hot dogs and sausage are a staple in many a refrigerator. Many people turn to them for a quick dinner entree or, in the case of sausage, as a featured food at breakfast or brunch.
Hot dogs and sausage tend to contain lots of sodium (520-680 milligrams per 2-ounce serving) and fat (up to 23 grams of total fat and 7 grams of saturated fat per serving). Most Americans take in more than double the recommended amount of sodium, according to the CDC.
More/Source: http://goo.gl/sNnSt