Monosodium Glutamate (MSG)

• What It’s Used In: Soups, Processed Meats, Canned Foods, Etc.
• Problems Caused: Metabolic Disorders, Neurotoxic Effects, Problems With Reproductive Organs

Likely the most controversial of all the dangerous ingredients on this list, Monosodium Glutamate is beloved by food companies. This is mostly due to being a useful food enhancer, often used in soups, processed meats, and canned vegetables. Of course, most will recognize the MSG content right away due to its salty taste (the sodium). While the U.S. FDA believes its safe, there is a lot of issues with it. Most feel it is the overexposure we have to them are the true problem. As they can cause metabolic disorders, obesity, neurological issues, and problems with reproductive organs.

Formaldehyde

• What It’s Used In: Industrial Disinfectants, Insulation, Glues and Adhesives, Etc.
• Problems Caused: Respiratory Problems, Dermatitis, Etc.

The colorless gas, Formaldehyde, known for its strong smell, is often used in household products. It’s also used for press-wood products, glues and adhesives, on top of some insulation materials. Many will know its smell from hospitals or funeral homes due to it being an incredible disinfectant. However, formaldehyde has a lot of issues. Long-term exposure causes respiratory problems, dermatitis, and much more. Short-term exposure beyond 100 ppm can be immediately life-threatening.

Nitrogen Dioxide

• What It’s Used In: Rocket Fuel, Explosives, Etc.
• Problems Caused: Lungs and Overall Respiratory System Issues

You don’t need to be a rocket scientist to know that Nitrogen Dioxide is incredibly dangerous. Most of the uses for it are in pyrotechnics, explosives, rocket fuel, etc. Yet it also operates as an oxidizing agent, and so much more. While the immediate danger is its high rate of flammability and environmental issues, it can do so much more to us. The most common problem people have, outside explosions, is toxicity. This causes immediate issues with the lungs and overall respiratory system.

Mercury

• What It’s Used In: Scientific Instruments
• Problems Caused: Neurological Issues, Kidney and Lung Damage, Respiratory Issues

Can you believe we once used this stuff for so many things? Today, the use of Mercury is almost exclusively used in scientific instruments like thermometers, barometers, and even fluorescent lamps. But not much else. Of course, some mercury is natural like what you get from sea creatures. This is not enough to harm us normally, but the chemical form of mercury can. Inhalation of it can cause severe respiratory issues, damage the lungs and kidneys, and even cause neurological problems.

Sodium Nitrate

• What It’s Used In: Lunch Meat and Other Packaged Foods
• Problems Caused: Heart Disease

Sodium Nitrate is almost impossible to avoid. It is mostly in any packaged product, especially bacon, jerky, hot dogs, lunch meat, and much more. It acts as a food preservative, which tends to work out pretty well. The issue is that, due to our large overexposure to sodium nitrate, we’re likely to experience health complications from it. SN mostly affects our blood vessels, as it damages them and makes them more likely to harden or narrow. Thus causing various heart diseases. Some, such as the World Health Organization, have claimed sodium nitrates could be carcinogenic.

High Fructose Corn Syrup (HFCS)

• What It’s Used In: Baked Goods, Soft Drinks, Etc.
• Problems Caused: High Blood Pressure, Diabetes, Obesity, Insulin Resistance

High Fructose Corn Syrup is something we could likely spend an entire article discussing. It mostly operates as a sweetener, which is why it tends to be in a lot of baked goods, soft drinks, and other things like them. Obviously, this is involving sugar which we know is bad for us with long-term use. In spite of what soft drink and food companies want you to believe, HFCS is bad. They cause insulin resistance, obesity, type 2 diabetes, as well as high blood pressure.

Arsenic

• What It’s Used In: Bronzing, Pyrotechnics, Preserving Wood, Etc.
• Problems Caused: Cancer, Lung Disease, Heart Disease

Arsenic is one of the most dangerous ingredients one could ever hope to add to something. It has been used in bronzing, pyrotechnics, and the development of specialized glass. On top of preserving wood. However, the U.S. FDA calls it a known carcinogenic as it can cause skin, bladder, and lung cancer. Along with heart disease. This has made it a popular item to poison people with.

Lead

• What It’s Used In: Ammunition, Weights, Car Batteries, Etc.
• Problems Caused: Brain and Kidney Damage

While lead is somewhat naturally occurring, it is one of the most toxic things humans ever used. Today, we still use it for radiation protection, ammunition, car batteries, weights, and storing corrosive liquids. Yet history shows us that lead poisons the human body. It does this by absorbing calcium, harming blood cells. This will then rework our bodies, thus damaging our nerves, blood vessels, and bones. Leading to brain and kidney damage.

Where do we find this stuff? Here are our sources:

United States Food & Drug Administration (FDA)

United States Environmental Protection Agency (EPA)

Center For Disease Control & Prevention (CDC)

World Health Organization (WHO)

U.S. Occupational Safety & Health Administration (OSHA)

National Institutes Of Health (NIH)

American Cancer Society

Queensland Government Health

Cleveland Clinic

Mayo Clinic

Oxford Journal of Neuropathy & Experimental Neurology

Harvard University

Stanford University

Scientific American Magazine

National Geographic

Connecticut General Assembly

Environmental Working Group

National Collaborating Centre For Environmental Health

Healthline

Live Science