Worst: Refined Grains

Refined grains have been stripped of nutrient-rich bran and germ.

Worst: Processed Meats

Most contain nitrates and are very high in saturated fat

Worst: Red Meats

Though red meat can be healthy in moderation, the correlation between red meat consumption and weight gain in the Harvard study was undeniable. If you choose to indulge, avoid fatty cuts, such as T-bone, New York strip, and rib-eye steaks.

Worst: Soda

You may be surprised to learn that in addition to waist-widening sugar and calories, soda contains flame retardants and may fatten up organs

Worst: Potatoes

Potatoes are often fried or covered with butter, sour cream, or sugary ketchup

Worst: French Fries

Potatoes aren’t great for you to begin with; adding salt and deep-frying them strips them of any value they may have had. A typical medium-size portion at a fast-food restaurant contains 410 calories and 18 grams of fat.