Studies have also shown that, in addition to lacking the nutritional value of wild Alaskan salmon, they are high in mercury, carcinogens and polychlorinated biphenyls, or PCBs. Unfortunately, the majority of salmon sold in United States supermarkets is farmed salmon, so if you’re craving this fish, make sure you’re buying wild-caught salmon, and if it isn’t available locally, you can order it online.

Processed White Flour

When we hear about white flour, we often think about the lack of nutrients as opposed to whole wheat. In fact, 14 vitamins, 10 minerals and protein value are lost in the process of refining the flour, and even enriched flour only has four vitamins added to it.

A more serious issue, however, is that mills aren’t waiting for their flour to whiten over time but are instead whitening their refined flour with chlorine gas. This gas, according to the EPA, is an irritant that’s not safe for inhalation. It is lethal in large quantities -- yet is used to process a product that’s present in many of our foods. Further, because of the high glycemic rate in processed flour, it is believed that this ingredient can help feed cancerous tumors, which feed on sugars in the bloodstream and helps spread cancer cells.

Diet Foods

Many diet foods, from sodas to prepackaged foods and frozen dishes, contain the chemical aspartame, which is an artificial sweetener. This chemical has been linked to countless health conditions, including cancer, birth defects and heart problems.

Instead, if you’re trying to diet, opt for fresh foods that are naturally low in calories and splurge on naturally rich items if you’re seeking a sweet fix -- in moderation, of course. In addition, aspartame accounts for more than “75 percent of the adverse reactions to food additives reported to the FDA,” according to Mercola.com. These reactions range from being mild to deadly. There is also some evidence linking aspartame to blood cancers, including leukemia and lymphoma, as well as some evidence to support a link to brain tumors.