It’s Not a New Diet Fad: Why Environmental Experts Are Asking You to Go Meatless

sustainable diets tomatoes growing in greenhouse


Every year a new diet emerges. There’s low-carb, gluten-free, keto, paleo, weight-watchers, Bullet Proof, Noom, and blood-type diets. When you get a group of people together there’s no end to the number of various food restrictions these days. And then there’s just plain old picky eaters (we all know at least one…). 


But you may have noticed more and more people lately saying “pass” on meat and opting for more plant-based alternatives. Even McDonald’s and Burger King have jumped on this trend, now with offerings like the Impossible Burger. But this isn’t just another fad — it’s a stepping stone in the journey of a sustainable lifestyle. And for good reason. 


Meat and dairy products are a significant contributor to the global carbon footprint, and they aren’t an entirely necessary one. Humans don't technically need meat to survive, yet the average American eats 274 lbs of meat per year.

Why Plant-Based Diets are More Sustainable

The impact of the meat industry is something environmentalists have been warning about for years, and as the world’s population continues to grow exponentially, it’s becoming an ever-growing concern. The problem is, there’s not just one issue to tackle when it comes to the meat and dairy industry. 


why eating meat is bad for the environment


Here are a few of the largest factors at play: 

Land Usage

According to the Nature Conservancy, 30% of the world’s land mass is livestock pasture or growing livestock feed.1 In the United States, 80% of the agricultural land is used for raising livestock.2 

Despite the massive amounts of land devoted to animal products, the FDA recommends animal products make up less than a quarter of a person’s diet.3 But the real problem lies in how much land meat production requires. 

It takes nearly 100x more land to produce protein and calories from beef as it does to grow an equal amount of nutrients from plant-based alternatives.4 

With a rising world population and more mouths to feed, this is becoming a more and more serious concern.

Fields used for livestock grazing contribute to deforestation and loss of wildlife habitat. In addition, when livestock are not properly fenced, they often cause contamination of local waterways and erode riparian buffer zones (Psst: Riparian buffer zones are the essential vegetation that lives along natural rivers and streams. The plant life keeps the river edge from eroding and also filters out debris to keep the water flowing clean).5

Water Usage 

In addition to land, the amount of water it takes to create meat and dairy products is quite high. It takes 6x more water to produce a gram of beef protein compared to a gram of protein from legumes, for example.6 

It’s not the water the animals drink that’s the problem — it’s the water required to grow the massive amount of crops to feed those animals. This is why you’ll hear people talk about eating lower on the food chain. As an animal moves up the food chain, the resources required to sustain it are multiplied by the amount of resources required to sustain its food source. 

Methane From Cow Burps and Farts

Seriously! Cows are rather large animals, however they get by on the very low nutrients of grasses and hay. In order to accomplish this, they use a process called rumination. (Brace yourself, this is a little gross.) 

Basically cows eat the grass, it goes down into their stomach for a bit and then they burp it back up and chew it some more to help get the maximum nutrients from their food. In order to break down the grass, their stomach is full of microorganisms that eat the plants. Those microorganisms produce methane as a byproduct. 

Since methane is one of the most potent greenhouse gasses, this has a significant negative impact on the environment.7

Not All Meats Are Equal

Beef, lamb, and pork take up more land and require more resources to grow. They are also larger, heavier creatures, making transportation and processing more intensive. These red meats are worse for the environment, so even if you don’t want to give up meat at all, you can still make an impact by choosing chicken over beef. 

Watch Out for Dairy

Dairy products are nearly as bad for the environment as beef (which you know by now is the worst meat). 

In fact, in one study by Johns Hopkins University, vegetarians who ate more cheese and yogurt to replace their meat intake had only slightly better environmental impact than full meat-eaters.8 


environmental impact of dairy 2022

You Don’t Have to Go Full Vegan — Or Even Fully Meatless

This isn’t an all-or-nothing principle. Just like driving — you don’t have to totally ditch your car to lower your carbon footprint. Just reducing the amount of meat and dairy you eat makes a difference. 


In the same Johns Hopkins study, participants who ate only plant-based foods for two meals a day, but were allowed to eat meat and dairy for one meal a day had a lower carbon footprint than the average vegetarian diet. 

And there are many different ways to incorporate going meatless into your life. 


This hashtag started trending back in 2003 with a push from the Johns Hopkins Bloomberg School of Public Health Center for a Livable Future, but it’s a habit that many people have incorporated into their regular routine, just like carrying a reusable water bottle or refusing straws. On Monday’s you go meatless. It’s a great way to lower your carbon footprint and start building the habits of a more sustainable lifestyle. 

Meatless Meals

Another option is to only eat meat at certain meals. If you eat meat and dairy at dinner, but cut it out for lunch and breakfast, you’ll significantly reduce your carbon footprint. 

Challenge a Friend

A great way to see how long you can go without meat is to challenge a friend and see who can get the longest streak of days without meat, dairy, or both. 

Try New Meat Substitutes

You don’t have to eat salads for the rest of your life to be a vegetarian. Being vegan or vegetarian is easier than ever, because there are now a vast array of meat substitutes available. Challenge yourself to try a new one each time you go grocery shopping until you find ones you like. 
Common meat substitutes include: 
  • Soy Protein
    • Tofu
    • Tempeh
    • Soy curds
    • TSP/TVP (Textured soy protein)
  • Grain Protein
    • Seitan
    • Green spelt
    • Oat flakes
  • Pea and bean proteins
    • Black beans
    • Chickpeas
    • Pea protein
  • Jackfruit

Crunch on Some Crickets

Seriously! Okay, not like straight out of your garden…. But if you’re feeling adventurous, try cricket protein! Insects are a very sustainable source of protein because they require very few resources to grow and reproduce naturally. You’ll find these products mostly online at this point, but don’t be surprised if they start popping up in grocery stores. 

Reduce Your Food Waste

Another way to lower the environmental impact of your diet is to simply reduce your food waste. Ensuring that meat and dairy products aren’t going to waste naturally reduces the amount you buy from the store. If you end up going out to eat instead of making that pork you bought, throw it in the freezer. It’s a simple yet effective eco-win. 

Some Easy Plant-Based Meals

vegetarian spring rolls meatless plant based diet inspiration


Meat is something of a staple in the US, so it can be difficult to find plant-based meals if you haven’t grown up eating them. 


Here are a few easy meal options to get you started: 

  • Stir-fry
    • You can find delicious premade Teriyaki sauces in the store. Chop up a mix of whatever vegetables you have on hand and sautee them in some oil. Add the sauce for several minutes and voila — stir fry! Throw it over some rice and you have a full blown dinner. Good protein additions include tofu and soybeans. 
  • Curry
    • Similar to stir fry, you can simply fill a pan with different veggies and a protein, like tofu or chickpeas. Add a curry paste and mix it with coconut milk. Again you can throw it over rice to fill it out, or eat it with naan (delicious Indian bread). 
  • Veggie burgers or full size portobello mushrooms 
    • Great for easy grilling and making sandwiches. 
  • Pasta dishes 
    • You might be surprised how much you like a veggie lasagne when it’s loaded up with carrots and zucchini. Play around with different combinations of vegetables and you’re sure to find one you like. 
  • Smoothies
    • A great breakfast staple, and also great for reducing food waste. If you have a fruit that’s on the verge of spoiling, cut it up and throw it in the freezer for your smoothies!
  • Spring rolls
    • These are super fun for families and even dinner gatherings, akin to building your own personal pizza. Lay out the various chopped up ingredients and let your dinner guests create their own rolls! Serve with a selection of sauces, such as thai peanut sauce or gyoza dipping sauce. 

This is just the beginning! If you’re looking for the next step on your journey to a sustainable lifestyle, reducing or eliminating your meat and dairy intake is a good place to start. For many people, it’s a work in progress — and that’s ok! 


Every time you choose to pass on the red meat, or skip the cheese, you lower your carbon footprint. So what will it be for you? #MeatlessMondays? Veggie-based breakfast? You decide. 


  1. United Nations, Food and Agriculture Organization. (2006). Livestock’s Long Shadow. Rome.
  2. United States Department of Agriculture, Economic Research Service. (1997). Major Uses of Land in the United States, 1997. Statistical Bulletin No. (SB-973).