The Beef With the GMO Impossible Burger
By Jaydee Hanson
In the foodie world, 2019 might as well be named The Year of the Impossible Burger. This plant-based burger that "bleeds" can now be found on the menus of Burger King, Fatburger, Cheesecake Factory, Red Robin, White Castle and many other national restaurant chains. Consumers praise the burger's meat-like texture and the product is advertised as an environmentally friendly alternative to traditional beef burgers.
In January, Impossible Foods launched the Impossible Burger 2.0. The company has stated that the new burger is "tastier, juicier and more nutritious" — featuring 40 percent less saturated fat than the old recipe, and just as much protein as 80/20 ground beef from cows. The new product is also gluten-free, replacing wheat with soy protein. Unfortunately, the Impossible Burger might just be too good to be true. At Center for Food Safety, we believe that replacing conventional animal products with ultra-processed, poorly studied, and under-regulated genetically engineered products is not the solution to our factory farm and climate crisis. Here's the science to back this up.
The Impossible Burger is manufactured from two different methods of genetically engineering soy products. This "impossible in nature" union is neither healthier nor more environmentally friendly than other kinds of non-meat burgers. While Impossible Foods, the company behind the Impossible Burger, has been trying to spin its product as both healthier and more sustainable than those of its competitors, a quick examination of the company's own data suggests otherwise.
1. The first kind of genetic engineering in the "Impossible Burger" is found in the soy used for the protein in the "burger" itself.
Rather than starting with organic soy beans, which have higher levels of protein and lower levels of Omega 6 fatty acids (the bad Omega), the company chose to use GMO soybeans, probably because they are cheaper than the organic beans. The company uses both GMO soy protein concentrate and GMO soy protein isolate for the protein in its burger. Impossible Foods does not describe how it processes the soy, but alcohol is the most common solvent used to process soy protein concentrate, as it produces products with a neutral taste. But the beneficial isoflavones in soy are removed by this method. Soy protein concentrate has the lowest level of healthful isoflavones — including daidzein, genistein and glycitein — of any form of processed soy.
Unfortunately, GMO soy is also sprayed with large amounts of the herbicide glyphosate, a product shown to cause cancer in people exposed during its application. GMO soy has been found to use significantly more herbicides than conventional soy or organic soy. At a time when juries are awarding billions of dollars in damages to those affected by exposure to glyphosate, it is startling that Impossible Foods would double down on the GMO soy that is inextricably linked to this toxic herbicide.
2. The second kind of genetic engineering of soy produces the "heme" that makes the Impossible Burger "bleed."
In order to manufacture its burgers, Impossible Foods takes DNA from the roots of soy plants, where a small amount of "heme" is produced, and inserts it into genetically engineered yeast that is then fermented to mass-produce heme. This is the first time that people have consumed this product. The U.S. Food and Drug Administration (FDA) is supposed to require testing in this situation to make sure that this novel protein does not cause allergic reactions in people. Unfortunately, instead of requiring Impossible Foods to file a new Food Additive Petition, FDA allowed the company to use a weak regulatory process called "Generally Recognized As Safe" (GRAS) where the company does its own research and chooses its own reviewers to self-certify that its product is safe for human consumption. Center for Food Safety has a lawsuit challenging the GRAS food additive loophole that the Impossible Burger went through, allowing it and many other novel food substances to unlawfully evade government analysis and approval before coming to market.
Even under the weak GRAS process, the first time the company submitted data on the allergenicity of its "heme," it was so inadequate that the FDA raised questions about the company's data and the company withdrew its application so that it could redo its research. Although the FDA now says that it has "no questions" about Impossible Foods' latest research on the safety of "heme," the agency itself has not affirmatively declared that "heme" produced in genetically engineered yeast is safe for human consumption. Moreover, FDA has warned Impossible Foods that it cannot claim its "heme" is a source of iron based on this review and that it must label its product as a potential allergen. The FDA also notes that the company should request a review of the "heme" as a new color additive.
Most customers of the Impossible Burger will not see labels saying that the burgers are made from GMO soy or could cause allergic reactions as Impossible Foods are currently only selling to fast food chains which do not put such labels on their menus.
Rather than buy the GMOx2 Impossible Burger, choose a non-GMO burger made in your local area. The Washington Post recently highlighted six veggie-based burgers being made by local restaurants that are not serving the Impossible Burger.
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By Beth Ann Mayer
Since even moderate-intensity workouts offer a slew of benefits, walking is a good choice for people looking to stay healthy.
How to Rock Your Walk<p>Walking isn't just fun and healthy. It's accessible.</p><p>"Walking is cheap," says Dr. John Paul H. Rue, a sports medicine doctor at <a href="https://mdmercy.com/" target="_blank">Mercy Medical Center in Baltimore</a>. "You can do it anywhere at any time; [it] requires little to no special equipment and has many of the same cardio benefits as running or other more intense workouts."</p><p>Want to up your walking game? Try the tips below.</p>
Use Hand Weights<p>Cardio and strength training can go hand-in-hand when you add weights to your walk.</p><p>A <a href="https://journals.lww.com/acsm-msse/Fulltext/2019/03000/Associations_of_Resistance_Exercise_with.14.aspx" target="_blank">2019 study</a> found that weight training is good for your heart, and <a href="https://www.mayoclinicproceedings.org/article/S0025-6196(17)30167-2/abstract" target="_blank">research</a> shows it reduces the risk of developing a <a href="https://www.healthline.com/health/nutrition-metabolism-disorders" target="_blank">metabolic disorder</a> by 17 percent. People with metabolic disorders have a higher chance of being diagnosed with high cholesterol, high blood pressure, and diabetes.</p><p>Rue suggests not carrying weights for your entire walk.</p><p>"Hand weights can give you an added level of energy burning, but you have to be careful with these because carrying [them] over a long period of time or while walking could actually lead to some overuse injuries," he says.</p>
Make It a Circuit<p>As another option, consider doing a circuit. First, put a pair of dumbbells on your lawn or somewhere in your home. Walk around the block once, then stop and do some bicep curls and tricep lifts before walking around the block again.</p><p>Rue recommends <a href="https://www.healthline.com/health/exercise-fitness/running-with-weights" target="_blank">avoiding ankle weights</a> during cardio workouts, as they force you to use your quadriceps rather than hamstrings. They can also cause muscle imbalance, according to the <a href="https://www.health.harvard.edu/staying-healthy/wearable-weights-how-they-can-help-or-hurt" target="_blank">Harvard Health Letter</a>.</p>
Find a Fitness Trail<p>Strength training isn't limited to weights. You can get stronger by <a href="https://www.healthline.com/health/bodyweight-workout" target="_blank">simply using your body</a>.</p><p>Often found at parks, fitness trails are obstacle courses with equipment for pullups, pushups, rowing, and stretches to build upper and lower body strength.</p><p>Try searching "fitness trails near me" online, checking out your local parks and recreation website, or calling the municipal office to <a href="https://calisthenics-parks.com/" target="_blank">find one</a>.</p>
Recruit a Friend<p>People who workout together stay healthy together.</p><p><a href="https://bmcgeriatr.biomedcentral.com/articles/10.1186/s12877-017-0584-3" target="_blank">One study</a> showed that older adults who exercised with a group improved or maintained their functional health and enjoyed their lives more.</p><p>Enlist the help of a walking buddy with a regimen you aspire to have. If you don't know anyone in your area, apps like <a href="https://www.strava.com/" target="_blank">Strava</a> have social networking features so you can get support from fellow exercisers.</p>
Try Meditation<p>According to the <a href="https://www.nccih.nih.gov/research/statistics/nhis/2017" target="_blank">2017 National Health Interview Survey</a>, published by the National Institutes of Health, meditation is on the rise, and for good reason.</p><p>Researchers <a href="https://pubmed.ncbi.nlm.nih.gov/29616846/" target="_blank">found</a> that mind-body relaxation practices can regulate inflammation, <a href="https://www.healthline.com/health/biological-rhythms" target="_blank">circadian rhythms</a>, and <a href="https://www.healthline.com/health/glucose" target="_blank">glucose</a> metabolism, as well as lower <a href="https://www.healthline.com/health/high-blood-pressure-hypertension" target="_blank">blood pressure</a>.</p><p>"Any form of exercise can be turned into a meditation of some type, either by the surroundings you are walking in, like a park or trail, or by blocking out the outside world with music on your headphones," Rue says.</p><p>You can also play a podcast or download an app like <a href="https://www.headspace.com/headspace-meditation-app" target="_blank">Headspace</a> that has a library of guided meditations to practice while you walk.</p>
Do Fartlek Walks<p>Typically used in running, fartlek intervals alternate periods of increased and decreased speed. These are <a href="https://www.healthline.com/nutrition/benefits-of-hiit" target="_blank">high-intensity interval training (HIIT)</a> workouts, which allow exercisers to accomplish more in less time.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154075" target="_blank">One study</a> showed that 10-minute interval training improved <a href="https://www.healthline.com/health/metabolic-syndrome" target="_blank">cardiometabolic</a> health, or lowered the risk of heart disease, stroke, and diabetes, just as well as working out at a continuous pace for 50 minutes.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111489" target="_blank">Research</a> also shows that HIIT workouts increase muscle <a href="https://www.healthline.com/health/fast-twitch-muscles" target="_blank">oxidative</a> capacity, or the ability to use oxygen. To do a fartlek walk, try walking at an increased pace for 3 minutes, slow down for 2 minutes, and repeat.</p>
Gradually Increase Pace<p>A faster walking pace is associated with a lower risk of <a href="https://www.healthline.com/health/copd" target="_blank">chronic obstructive pulmonary disease (COPD)</a> and respiratory diseases, according to a <a href="https://pubmed.ncbi.nlm.nih.gov/30303933/" target="_blank">2019 study</a>.</p><p>Still, it's best not to go from a stroll to an Olympic-worthy power walk in a day. Instead, increase your pace gradually to prevent injury.</p><p>"Start by walking at a brisk pace for about 10 minutes per day, 3 to 5 days per week," Rue says. "Once you've done this for a few weeks, increase your time by 5 to 10 minutes per day until you get to 30 minutes."</p>
Add Stairs<p>You've likely heard that taking the stairs instead of an elevator is a way to add more movement into your daily routine. It's also a way to step up your walking. Stair climbing has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S2211335519301123?via%3Dihub" target="_blank">decrease the risk of mortality</a> and can easily add a bit more challenge to your walk.</p><p>If you don't have stairs in your home, you can often find them outside a local municipal building, train station, or at a high school stadium.</p>
Is Your Walk a True Cardio Workout?<p>Not all walks are equal. A walk that's too leisurely may not provide enough burn to qualify as cardio. To see if you're getting a good workout, try to <a href="https://www.healthline.com/health/how-to-check-heart-rate" target="_blank">measure your heart rate</a> using a monitor.</p><p>"A target goal for a good walking workout heart rate is about 50 to 70 percent of your maximum heart rate," Rue says, adding that maximum heart rate is <a href="https://www.healthline.com/health/fitness-exercise/fat-burning-heart-rate" target="_blank">typically calculated</a> by 220 beats per minute minus your age.</p><p>You can also monitor how easily you can carry on a conversation while you walk to gauge your heart rate.</p><p>"If you can walk and carry on a normal conversation, that's probably a lower intensity walk," says Rue. "If you are slightly breathless but can still have a conversation, that's probably a moderate workout. If you are out of breath and can't talk normally, that's a vigorous workout."</p>
Takeaway<p>By shaking up your routine, you can add excitement to your workout and reap even more rewards than a basic walk provides. Increasing the pace and intensity of a workout will make it more effective.</p><p>Simply pick your favorite variation to add some spice to your next walk.</p>
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