Avoid These 7 Foods at all Cost and You're Off To A Healthier New Year>>>.

Written by: Dr. Mercola

1. Canned Tomatoes

The expert: Fredrick vom Saal, PhD, an endocrinologist at the University of Missouri who studies bisphenol-A

The resin linings of tin cans contain bisphenol-A, a synthetic estrogen that has been linked to ailments ranging from reproductive problems to heart disease, diabetes, and obesity. Acidity -- a prominent characteristic of tomatoes -- causes BPA to leach into your food.

2. Corn-Fed Beef

The expert: Joel Salatin, co-owner of Polyface Farms and author of books on sustainable farming

Cattle were designed to eat grass, not grains. But farmers today feed their animals corn and soybeans, which fatten up the animals faster for slaughter. A recent comprehensive study found that compared with corn-fed beef, grass-fed beef is higher in beta-carotene, vitamin E, omega-3s, conjugated linoleic acid (CLA), calcium, magnesium, and potassium.

3. Microwave Popcorn

The expert: Olga Naidenko, PhD, a senior scientist for the Environmental Working Group

Chemicals, including perfluorooctanoic acid (PFOA), in the lining of the bag, are part of a class of compounds that may be linked to infertility in humans. In animal testing, the chemicals cause liver, testicular, and pancreatic cancer. Studies show that microwaving causes the chemicals to vaporize -- and migrate into your popcorn.

4. Nonorganic Potatoes

The expert: Jeffrey Moyer, chair of the National Organic Standards Board

Root vegetables absorb herbicides, pesticides, and fungicides that wind up in soil. In the case of potatoes they're treated with fungicides during the growing season, then sprayed with herbicides to kill off the fibrous vines before harvesting. After they're dug up, the potatoes are treated yet again to prevent them from sprouting.

5. Farmed Salmon

The expert: David Carpenter, MD, director of the Institute for Health and the Environment at the University at Albany

Nature didn't intend for salmon to be crammed into pens and fed soy, poultry litter, and hydrolyzed chicken feathers. As a result, farmed salmon is lower in vitamin D and higher in contaminants, including carcinogens, PCBs, brominated flame retardants, and pesticides such as dioxin and DDT.

6. Milk Produced with Artificial Hormones

The expert: Rick North, project director of the Campaign for Safe Food at the Oregon Physicians for Social Responsibility

Milk producers treat their dairy cattle with recombinant bovine growth hormone (rBGH or rBST, as it is also known) to boost milk production. But rBGH also increases udder infections and even pus in the milk. It also leads to higher levels of a hormone called insulin-like growth factor in milk. In people, high levels of IGF-1 may contribute to breast, prostate, and colon cancers.

7. Conventional Apples

The expert: Mark Kastel, codirector of the Cornucopia Institute

If fall fruits held a "most doused in pesticides contest," apples would win. And increasing numbers of studies are starting to link a higher body burden of pesticides with Parkinson's disease.

Another Food to Avoid: Unfermented Soy

This one did not make the above list, but it’s one I would definitely add.

Any soy that is unfermented -- soy milk, tofu, soybean oil, soy burgers, and all the other processed soy products out there all belong to this category -- is not a health food and in fact is not a food I would advise eating at all. This is true whether it is “organic” or not.

Soy infant formula is also on this list and is one of the absolute worst foods you can give your baby.

Unfermented soy products have been linked to everything from reproductive disorders and infertility to cancer and heart disease.

Further, unfermented soy contains isoflavones that are clearly associated with reduced thyroid function. Eating unfermented soy products is likely the single largest cause of hypothyroidism in women.

Another major problem with unfermented soy is that it contains natural toxins known as “antinutrients.” This includes a large quantity of inhibitors that deter your enzymes needed for protein digestion.

While a small amount of these antinutrients would likely not be a problem, the amount of soy that many Americans are now eating (and drinking in the form of soy milk) is quite significant.

The result of consuming too many of soy’s antinutrients is extensive gastric distress and chronic deficiencies in amino acid uptake, which can result in pancreatic impairment and cancer.

For more details on soy foods, including the fermented varieties that can actually be healthy, please read Why This Type of Soy is Better.