Non Gmo Project Verified logo“Non-GMO” means non-genetically modified organisms. GMOs (genetically modified organisms), are novel organisms created in a laboratory using genetic modification/engineering techniques. Scientists and consumer and environmental groups have cited many health and environmental risks with foods containing GMOs.

As a result of the risks, many people in the United States and around the world are demanding “non-GMO” foods. We have created an ebook offering our top 13 tips for buying organic food to help keep your family safe and healthy. Download it for free HERE.

Genetically Modified Foods

dna-strand-in-gmoIn genetic modification (or engineering) of food plants, scientists remove one or more genes from the DNA of another organism, such as a bacterium, virus, animal, or plant and “recombine” them into the DNA of the plant they want to alter. By adding these new genes, genetic engineers hope the plant will express the traits associated with the genes. For example, genetic engineers have transferred genes from a bacterium known as Bacillus thuringiensis or Bt into the DNA of corn. Bt genes express a protein that kills insects, and transferring the genes allows the corn to produce its own pesticide.

Genetic modification/engineering is a potentially dangerous technology

One of the main problems with genetic engineering is that the process of inserting genes into the DNA of a food plant is random; scientists have no idea where the genes go. This can disrupt the functioning of other genes and create novel proteins that have never been in the food supply and could create toxins and allergens in foods.

John Vandermeer, Asa Gray Distinguished University Professor of Ecology and Evolutionary Biology at the University of Michigan, has said that genetic engineering is based on “dramatically incomplete knowledge of the genome.”


Genetic modification is a radical technology

Supporters of genetic modification say that the technology is simply an extension of traditional plant breeding. The reality is that genetic engineering is radically different. Traditional plant breeders work with plants of the same or related species to create new plant varieties. Genetic engineers break down nature’s genetic barriers by allowing transfers of genes from bacteria, viruses, and even animals—with unforeseen consequences.

Genetic modification is based on an obsolete scientific theory

Genetic modification is based on a theory called the Central Dogma, which asserts that one gene will express one protein. However, scientists working with the United States National Human Genome Research Institute discovered that this wasn’t true, that genes operate in a complex network in ways that are not fully understood. This finding undermines the entire basis for genetic engineering.

Genetically Modified Crops Approved to be Grown in the US


  • Alfalfa
  • Apples (“Arctic” varieties)
  • Canola
  • Corn
  • Cotton
  • Potatoes (“Innate” varieties)
  • Papaya
  • Pineapple (“Pinkglow” variety)
  • Soybeans
  • Sugar beets
  • Yellow “crook neck” squash
  • Zucchini

GMO Salmon

There is also a genetically engineered “AquaAdvantage” salmon developed by Aqua Bounty Technologies that received regulatory approval by the U.S. Food and Drug Administration in 2018. In late 2020, a federal court ruled that the FDA ignored the serious environmental consequences of approving GMO salmon and ordered the agency to thoroughly analyze the environmental consequences of an escape of the GMO fish into the wild.

More than 60 U.S. food retail chains including Walmart, Costco, Albertson’s, Kroger, Trader Joe’s, Aldi, and others have said they won’t sell GMO salmon in their stores.

rBGH (Recombinant Bovine Growth Hormone)

About 10% – 15% of cows in the US are injected with a genetically modified bovine growth hormone called rBGH (rBST). rBGH is banned in many countries due to negative health impacts on cows. In the US, major food retailers and restaurants such as Wal-Mart, Safeway, Starbucks, and McDonald’s only sell or serve rBGH-free milk.

How Can I Avoid Genetically Modified Foods

  1. Avoid processed foods containing ingredients from corn, soy, canola, sugar beets, and cotton.
    More than 70% of processed foods found in retail stores and restaurants contain ingredients derived from GE corn, soybeans, canola, and cotton. In addition, half the sugar used in food products comes from GM sugar beets.
  2. Non Gmo Project Verified logo

  3. Look for Non-GMO Project verified products.
    These food products have gone through a rigorous verification program to minimize the risk of GMO contamination, giving you the best assurance they are non-GMO. For more information visit
  4. thrive-market

  5. Shop online at Thrive Market. is a new online store that offers up to 50% off the retail price on all your favorite organic and non-gmo brands. It’s a great way to avoid GM foods without breaking the bank and they have free shipping as well. Learn more HERE.
  6. Eat organic.
    Buying organic foods also offers assurance against the risks of genetic engineering because GM substances are prohibited in organic production.
  7. Buy locally grown foods.
    There is nothing better than locally produced fresh fruits and vegetables. Buying local supports farmers and keeps food dollars in the community. Another option is a community supported agriculture (CSA) program, which you pay a membership fee to a local farmer and receive fresh organic produce throughout the growing season.
  8. Grow your own.
    Gardening is a great hobby, nourishing to the body, mind, and soil. You can also participate in urban agriculture projects that are sprouting nationwide.
  9. Utilize our Free Ebook.
    We have written an ebook titled, “13 Tips for Buying Organic Food” which will show how to keep your family safe from the potential perils of GMOs. Download it for free HERE.

Health Hazards of GM Foods

Below are several documented findings showing health dangers from GM foods.

GM crops risks and GM food hazards
  • GM corn and Roundup herbicide cause tumors and organ damage

    Rats fed Monsanto’s GM corn NK603 and tiny amounts of Roundup herbicide over a two-year period—the longest ever feeding study involving a GM food—developed severe liver and kidney damage, disturbance to pituitary gland function, and hormonal disruption. Additional findings included increased rates of large tumors and premature deaths. The study was first published in the journal Food and Chemical Toxicology but was later retracted due to pressure by pro-GMO scientists and groups. It was later republished in Environmental Sciences Europe.

  • GM-fed pigs suffered severe stomach inflammation and heavier uteri

    A study found that pigs fed GM corn and soy over 22.7 weeks suffered more severe stomach inflammation than pigs fed a non-GMO diet. GM-fed females had on average a 25% heavier uterus than non-GM-fed females, a possible indicator of disease that requires further investigation.

  • GM corn altered blood biochemistry, damaged organs, and caused potential effects on male fertility

    Rats fed the GM Bt corn MON810 for 45 and 91 days showed differences in organ and body weights and in blood biochemistry, compared with rats fed a non-GMO variety grown side-by-side in the same conditions. The authors noted that the changes could indicate “potential adverse health/toxic effects,” which needed further investigation.

  • GM potatoes caused damage to mice intestines

    Mice fed a diet of GM Bt potatoes showed abnormalities in the cells and structures of the small intestine, indicating mild damage to the intestines. A control group of mice fed non-GMO potatoes containing a naturally occurring Bt toxin showed no abnormalities. The test shows that the Bt toxin does not break down in digestion, as GMO proponents claim.

  • GM corn toxin found in blood of pregnant women

    A study conducted in Canada detected significant levels of the insecticidal Bt corn protein, Cry1Ab, circulating in the blood of pregnant women and in the blood supply to unborn fetuses. This study again shows that the Bt toxin does not break down in digestion, as GMO proponents claim.

  • GM soybeans caused liver problems in mice

    A long-term feeding study conducted by scientists in Italy found health problems, including acute signs of aging in the liver, in mice fed GM glyphosate-tolerant soybeans.

Environmental Hazards of GM Crops

Environmental hazards of gm foods and crops

  • GM crops increase pesticide use

    According to a study published by published by Washington State University research professor Charles Benbrook, GM crops have increased overall pesticide use by 404 million pounds from 1996 through 2011.

  • GM crops creating “superweeds”

    The widespread use of glyphosate herbicide used with herbicide tolerant GM corn, soybeans, canola, and cotton has led to the creation of herbicide resistant weeds, which now infest 60 millions of acres of farmland throughout the United States.

  • The GMO industry’s “solution” to weed resistance is to use older, more toxic herbicides

    The spread of weeds resistant to glyphosate, the main ingredient in Roundup herbicide, has led GM crop developers to introduce new GM crops that can be used with more toxic herbicides such as dicamba and 2,4-D. These herbicides are more prone to drifting and have damaged millions of acres of other crops in the U.S. since 2016.

  • GM corn harms aquatic insects

    A 2007 published study by Indiana University environmental science professor found that GM corn produced increased mortality and reduced growth in caddisflies, aquatic insects that are a food resource for higher organisms like fish and amphibians.

  • GMO contamination of organic and non-GMO crops causes hardships for farmers

    Genetically modified crops are passing their transgenes to organic and non-GMO crops and causing farmers added costs and hardships. The risks and the effects of GMO contamination have unfairly burdened organic and non-GMO farmers with extra work, longer hours, and financial insecurity.

GMO 2.0: Gene Editing and Synthetic Biology

In the mid-1990s, proponents of genetic engineering promised that GMO foods would increase yields, reduce pesticides, produce nutritious foods, and help feed the world. Today, those promises have fallen far short as the majority of GMO crops are engineered to withstand sprays of Roundup herbicide, which is increasingly documented as a risk to human health.

Now, new genetic engineering technologies such as gene editing and synthetic biology are being hailed with the same promises of revolutionizing food production, medicine, fuels, textiles, and other areas.

But these technologies pose similar and possibly even greater risks than “old” genetic engineering techniques.

A 2018 paper published in Nature Biotechnology found that CRISPR gene editing could cause large unexpected deletions to a cell’s genome.

A 2020 article in Nature magazine in July described how CRISPR gene editing caused “chromosomal mayhem” in human embryonic cells.

Synthetic biology involves altering the DNA of microorganisms such as algae, bacteria, and yeast so they produce compounds like flavors and fragrances that previously have been extracted from plants.

There are a growing number of food products created using synthetic biology that are on the market including the Impossible Burger and ice cream products from syn-bio company Perfect Day.

One study has shown that the Impossible Burger may not be safe to eat.

In addition to health concerns, there are social concerns as companies producing synthetic biology flavors hurt markets for natural flavors produced by farming communities around the world.

Additional Resources

GMO Research

GMO Research is the world’s most comprehensive science database, containing over 2,000 studies and journal publications documenting risks and potential and actual harmful effects of GMOs and related pesticides and agrichemicals.

GMO Science

A website featuring experts exploring the science of genetic engineering and its impact on food, health, and agriculture.

GM Watch

A website featuring news and comment on genetically modified foods and their associated pesticides. This is probably the best website for the most up-to-date news on the risks of GMO foods.

Institute for Responsible Technology

IRT is a world leader in educating the public and change-makers about the health risks and environmental dangers of GMOs and associated pesticides. We empower consumers to lead an organic lifestyle and shape the changing marketplace to reject GMOs from the food supply and environment.

Explore Our Articles