2. Processed Meats
Meat preserved by smoking, salting, drying or adding harmful preservatives like nitrates is processed meat. This includes bacon, ham, sausage, salami, beef jerky, canned and smoked meat.
Research has shown that eating processed meat contributes to fatal heart disease, cancer and premature death.
A 2013 study published by BioMed Central collected comprehensive lifestyle data on 448,568 men and women from 10 European countries.
Researchers concluded that people who consumed processed meats were at a 44 percent greater risk of premature death due to heart disease and cancer.
Processed meats also have high salt content that increases blood pressure. The nitrate preservatives also clog arteries and increase blood sugar levels.
In 2010, researchers from the Harvard School of Public Health evaluated 1,600 case studies from four continents and concluded that processed meat consumption increased diabetes risk by 19 percent.
3. Soft Drinks/Soda
In the U.S., soda is the second most-preferred beverage of choice after water. One bottle of soda contains 44 grams of sugar.
Consuming soda regularly spikes our blood sugar. The excess sugar is stored as fat, contributing to obesity, diabetes and high blood pressure.
In a 2006 study published in the American Society for Clinical Nutrition, researchers concluded that soft drink consumption may have adverse effects on bone mineral density.
In addition, a 2001 study published in Lancet concluded that daily intake of soda beverages increased the risk of obesity in children.
Daily consumption of 1 to 2 cans of soda elevates the risk of diabetes in young adults and increases the risk of developing gout for both men and women.
Colas, in particular, also contain phosphoric acid that inhibits calcium absorption, weakens bones and increases the risk of osteoporosis.
4. Artificial Sweeteners
As more people look to lower the calories in their diets, artificial sweeteners are replacing natural sugar in many products.
However, recent research has shown that artificial sweeteners increase the risk of diabetes by raising blood sugar levels and negatively affect the body’s immune system.
A 2014 study published in the Nature journal states that the body does not digest artificial sugar, which then goes to the intestine and is absorbed by intestinal bacteria, altering their behavior.
According to results, this causes rapid weight gain. It also prevents sugar breakdown, significantly accelerating the risk of diabetes.
In addition, although artificial sweeteners are sweeter than sugar, they tend to increase sugar cravings and sugar dependence because there is a strong correlation between repeated intake of a flavor and preferred intensity for that flavor.
5. Deep-Fried Foods
Deep-fried foods like French fries, potato chips, onion rings, fried chicken and breaded cutlets are exceptionally delicious, but also exceptionally unhealthy.
Oil contains fat, and in order to deep-fry food, you need lots of it. Deep-frying is also a slow process, allowing foods to absorb a lot of the fat.
Eating these fat-laden foods on a regular basis increases cholesterol and clogs arteries. This leads to heart problems. A 2015 study published in the Journal of American Heart Association showed a positive association between fried food intake and heart failure.
Also, a 2014 study published in the American Society for Nutrition journal showed that frequent fried-food consumption was significantly associated with risk of developing incident Type 2 diabetes or coronary artery disease.
Furthermore, carbohydrate-rich foods like potatoes, when fried at high temperatures, produce acrylamide – a substance that increases the risk of cancer.
6. Microwave Popcorn
The U.S. Food and Drug Administration has stated that microwave popcorn bags are lined with certain chemicals (PFOA) to keep the grease from leaking out. When these bags are microwaved, the chemicals leak into the popcorn.
A 2009 study published in Human Reproduction substantiates that these chemicals increase the risk of infertility.
A 2010 study published in Environmental Health Perspectives found that consumption of PFOA (perfluorooctanoic acid) chemicals might cause thyroid disorders. If left untreated, thyroid disorders pose the risk of turning into thyroid cancer.
Other studies in the U.S. have also proven exposure to PFOA chemicals is a major cause of breast, kidney and testicular cancer. These chemicals also increase cholesterol levels and, consequently, the risk of chronic heart disease.