Going Vegan Is the Best Thing You Can Do for the Planet, New Study Proves
By Joe Loria
A groundbreaking study by Tulane University and the University of Michigan published in Environmental Research Letters found that meat, dairy and egg consumption is responsible for nearly 84 percent of food-related greenhouse gas emissions in the U.S.
Scientists analyzed the effects of more than 300 foods and the diets of 16,000 Americans. They found that only 20 percent of Americans, those who eat the most animal products, make up 46 percent of diet-related emissions overall on an average day.
Plant-based foods like fruits, vegetables, cereals and grains, and nuts and seeds, make up a mere three percent of diet-related emissions. Legumes were found to be the least harmful to the planet, with pulses accounting for just 0.3 percent of greenhouse gas emissions.
"Reducing the impact of our diets—by eating fewer calories and less animal-based foods—could achieve significant reductions in greenhouse gas emissions in the United States," said Martin Heller, a researcher at the University of Michigan. "It's climate action that is accessible to everyone, because we all decide on a daily basis what we eat."
This is hardly the first time eating animal products has been deemed harmful to the planet. Last year, the Alliance of World Scientists, a group of 15,000 scientists from 184 countries, concluded that humans must change their behavior and switch to a plant-based diet to prevent environmental destruction.
Raising animals for food produces more greenhouse gas emissions than all the cars, planes and other forms of transportation combined. According to the Food and Agriculture Organization of the United Nations, carbon dioxide emissions from raising farmed animals make up about 15 percent of global human-induced emissions, with beef and milk production as the leading culprits. In fact, even without fossil fuels, we will exceed our 565-gigaton CO2e limit by 2030.
Furthermore, simply by avoiding animal products, we can cut our carbon footprints in half. A pound of beef requires 13 percent more fossil fuel and 15 times more water to produce than a pound of soy.
There is no such thing as sustainable meat. Plant-based alternatives to meat, dairy and eggs take a mere fraction of the resources to produce than their animal-based counterparts. It's time for anyone who cares about the future of our planet to take action and ditch animal-based products altogether.
But a vegan diet isn't just good for the planet; it also spares countless animals a lifetime of misery at factory farms. Pigs, cows, chickens and other farmed animals suffer terribly from birth to death.
So what are you waiting for? Join the millions of people who are helping to protect farmed animals and the planet by switching to a vegan diet. Click here to get started. And check out Mercy for Animals' Pinterest page for thousands of recipe ideas.
Joe Loria is the communications and content manager at Mercy For Animals.
Reposted with permission from our media associate AlterNet.
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Where Does the Deficiency Begin?<p>Nobody knows exactly how much vitamin D a person actually needs. The question of when a deficiency starts is correspondingly controversial. However, vitamin D is becoming increasingly popular.Not only is the pseudo-scientific literature on the "sun vitamin" experiencing an upswing, but the number of published studies has also increased enormously in recent years. For example, in 2019 <a href="https://academic.oup.com/edrv/article/40/4/1109/5126915" target="_blank">a study found that</a> Vitamin D is responsible for keeping the skeleton functional and is associated with cardiovascular diseases, type 2 diabetes and various types of cancer. <br></p>
An All-Rounder<p>Vitamin D levels in the body rise and fall according to sun exposure. If sufficient UV rays reach the skin, the body is able to produce the vitamin itself. However, the human body only derives an estimated 10 to 20 percent of its daily requirement from food.</p><p>The vitamin D that we synthesize from sunlight or food is not biologically active at first. Before the kidneys can produce the biologically active form of the vitamin, known as calcitriol, and release it into the blood, some metabolic processes must take place beforehand.</p><p>In addition, many organs have receptors to which the precursor of calcitriol binds. Further, this substance is also present in blood.</p><p>From this precursor, the organs then produce calcitriol themselves, which the body then uses for countless other processes in the body. This form of vitamin D thus regulates insulin secretion, inhibits tumor growth, and promotes the formation of red blood cells as well as the survival and activity of macrophages, which are important for the <a href="https://www.mdpi.com/2072-6643/5/7/2502/htm" target="_blank">immune system.</a></p>
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Association Versus Intervention Studies<p>Many studies on the vitamin are association or observational studies. "By definition, these studies cannot prove the causal relationship, but only point to mere correlations," said Fassnacht. The physician tries to illustrate this with an example:</p><p>"Imagine two groups of 80-year-olds. One group is spry, active and does sports. If you compare them with another group living in nursing homes, the difference in vitamin D levels will be dramatic. Life expectancy would also be extremely different."</p><p>But to try to explain the difference in fitness by vitamin D status alone is far too simplistic. "Vitamin D levels are a good measure of how sick someone is. But not more," says Fassnacht. </p><p>According to Fassnacht, none of the intervention studies carried out to date -- that specifically examined the effect of vitamin D on various diseases -- has been able to confirm the previous association and laboratory studies or the presumed positive effect of vitamin D.</p>
Further Research Is Needed<p>"If a coronavirus infection is suspected, it is therefore absolutely necessary to check the vitamin D status and quickly correct any possible deficit," said the recommendation of the paper published by the University of Hohenheim.</p><p>"Studies are underway to see whether vitamin D helps in COVID-19 infection, but I personally do not believe that this is really the case," says endocrinologist Fassnacht. Nevertheless, he says it is of course useful to carry out these studies.<br></p><p>"I don't want to rule out that there are actually subgroups of people who benefit from an additional vitamin D dose," he says. After all, this has been proven to be the case with a severe deficit.</p><p>In view of the study situation, Fassnacht does not think much of preventive, nationwide vitamin D substitutes. "My belief that the vitamin helps somewhere is very low. But, of course, I can be wrong."</p>
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