Should Athletes Try A Plant-Based Diet?

Learn more about a plant-based diet, what it means and whether or not it’s good for athletes. And get RD-approved practical tips on how to start a plant-based diet today.

“Plant-based” is one of the hottest trends in the nutrition world right now. Between plant-based burgers that taste like meat, celebrities and athletes promoting plant-based eating and fast food chains advertising plant-based options, the term is truly everywhere. 

Chances are that you’ve found this page because you’re looking for more info whether or not you should try a plant-based diet, and you’re in luck. As a plant-based Sports Dietitian, I’m breaking down everything you need to know about eating more plants! 

What is a plant-based diet?

Plant-based diets are on the rise, especially as more elite and professional athletes flaunt the benefits of eating plants. But the exact definition of a plant-based diet isn’t set in stone and can vary based on who you ask.

Many people wonder if plant-based and vegan are the same thing. Does a plant-based diet include only plants or is it more lenient? If you eat predominantly plants with soy dairy, eggs or even poultry, seafood and meat thrown in, does that constitute a plant-based diet?

The answer is that it depends on who you ask! There is no one definition of the term plant-based, so how you define it is up for interpretation. 

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In my opinion, a plant-based diet consists of mostly whole foods that are predominantly plants. I follow a plant-based diet that is a vegetarian diet, which consists mostly of plants with some dairy and eggs.

Similarly, U.S. News & World Report describes plant-based diets “as an approach that emphasizes minimally processed foods from plants, with modest amounts of fish, lean meat and low-fat dairy, and red meat only sparingly”. Others might argue that plant-based means a strictly vegan diet.  

The true definition of the term ‘plant-based’ is up to you, but what’s not up for debate is the emphasis on, well, plants!

Is “plant-based” eating a true diet? 

‘Diet’ is a nasty four-letter word associated with rules, restriction, deprivation and weight loss. In that sense, a plant-based diet is not a diet at all. There is no calorie counting, no crazy rules that tell you when or how much to eat, and there is no guarantee of weight loss. 

That said, research suggests that eating mostly plants can reduce the rates of developing Diabetes and obesity. Plant-based diets are also associated with lower rates of heart disease and cancer7. Most of the research is conducted in those who follow a vegetarian diet, which includes plenty of fruits, vegetables and meatless proteins, like eggs, dairy, whole grains, nuts, seeds and soy. 

And it’s important to note that plant-based diets are low in processed foods, which means they may be associated with weight loss.

From now on, when I use the word “diet”, think of it more as an eating plan. 

Is going plant-based a good idea for athletes?

The short answer is yes. The long answer is most styles of eating that include whole nourishing foods can be beneficial for athletes.

In one study, researchers compared 76 recreational runners—24 vegan, 26 vegetarian, and 26 who ate meat—to determine their max exercise capacity. The researchers did not perform a dietary intervention and found that all of the athletes consumed about the same amount of calories and protein per day. But the vegan runners ate more carbs, fiber, magnesium, iron, folate, and vitamin E than those who were vegetarians or meat-eaters.

All of the athletes performed similarly on the exercise test, proving that one diet did not provide a significant advantage over another one. That said, there is no denying that plants are an important part of a healthy diet. 

I truly believe that they key to exercise performance is adhering to sports nutrition principles and eating a well-balanced diet with nourishing foods. 

For more info on what vegetarian and vegan diet for athletes, check out The No-Brainer Nutrition Guide For Every Runner. 

How to try plant-based eating

If you want to try plant-based eating but are overwhelmed with the prospect of eating more plants, take it one step at a time with these simple tips. 

1. Create your own definition of plant-based eating

As I said earlier, the term “plant-based” isn’t truly defined. For some, it means eating plenty of plants with meat. For others, it’s a vegetarian diet that includes plants, dairy, eggs and sometimes fish. Some consider plant-based to be a strictly vegan diet that is made up of just plants. 

The best part is that it’s up to you to decide how you will eat more plants. Choose a goal that seems attainable and realistic. For example, maybe you will incorporate plants into every single meal of the day. Or you will only eat meat at once per day. Or maybe you’re mostly vegetarian now and you have decided to omit the meat entirely. 

Find an option that works for you and write down the version of plant-based that you will follow. It may change over time, and that’s perfectly okay. But take note of your starting place. 

2. Commit to at least 21 days of your new lifestyle

They say it takes 21 days to create a habit, and I’ve found this window to be true with my clients. Know that it will be really difficult at first, but it will get easier over time.

Now that you’ve defined your version of plant-based eating, it’s time to implement that change for at least 21 days. If you can’t do it for this period of time, you may have been a bit too ambitious with your initial goal. Don’t beat yourself up–reassess, create a more attainable goal and try again.  

If you can do it for 21 days, chances are that you’ll stick with it for the long haul. 

3. Choose whole foods

The terms “plant-based” and “whole foods” go hand-in-hand. Whole foods are foods that aren’t processed and are free contain any additives. 

All fruits and vegetables are considered whole foods. Canned beans, dried legumes, frozen vegetables, dried fruit, dried grains, roasted nuts, oils, yogurt, tofu or nut butter are also whole foods, although they had to go through very minimal processing for packaging. 

In addition to eating more whole foods, cut back on processed foods, like chips and snacks, sugary desserts, cookies, donuts, pastries, and drinks, fatty meats and fried foods. It’s perfectly fine to eat these foods every once in a while, but they shouldn’t be part of your daily diet. 

4. Assess hunger and energy levels

I receive many many emails from readers who have recently cut meat out of their diet and are constantly hungry or fatigued. There are a few reasons this might happen when switching to a plant-based diet, such as:

  1. You may be missing out on the nutrients that are abundant in meat, like protein, iron and fat. Protein and fat keep you full and iron is necessary for maintaining energy levels. 
  2.  You may be eating fewer calories than you were on a meat-centric diet. Meat has more calories than plant-based proteins.
  3. You may not be recovering properly after a workout. This goes back to not eating enough protein.

If you aren’t sure if you’re falling victim to any of these scenarios, keep reading to get info on all of these common plant-based eating pitfalls. 

5. Learn more about plant-based nutrition

The bottom line is that if you want to try a plant-based diet in any capacity, the best way to do it is to eat plenty of nutritious whole foods. To help you do so, check out these helpful resources to make sure you don’t miss out on any key nutrients. 

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