What to Eat to Avoid Injury and Reach Peak Performance, Says a Sports Doctor

|Updated Nov 9, 2021
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Now that spring is nearly here and we are all getting out and doing more of our favorite activities, or trying to sweat off unwanted pounds that crept on last winter, the next big wave of doctor's visits may just be to the orthopedist for sports-related injuries.

Whether you prefer running or weight training, if you're like most athletes you stretch, roll out sore muscles and take measures to warm up, cool down and give your body its best chance to have a great workout. But one doctor who works with pro athletes says there is one key component that many active, fitness seekers ignore: Their diet. Ultimately no amount of technique or training can do as much to help you get fit and stay fit as what you put in your mouth.

And the micro-tears that happen when muscles are pushed to the limit create the opportunity in your muscles to build back stronger, creating the fitness and strength you are working for. But that same process involves inflammation, which if it is out of control will slow down recovery, and if you push your muscles before they are fully ready to exert again, you can get injured, as other areas of the body attempt to compensate. This inflammation is what ultimately causes the pain and rupture that we recognize as a sports injury. If you are the kind of driven person who is prone to doing too much too soon in an effort to get back in shape, says Dr. Rand McClain, then your best friend is a plant-based diet that avoids animal products and dairy (both of which have been proven to cause inflammation in studies) and concentrates on eating more vegetables, fruits, whole grains, seeds, nuts, and legumes. You will get plenty of protein, explains McClain, who is a restorative osteopathic doctor for professional athletes. Instead of overdoing it at the gym, we should be piling our plates with natural whole foods that are minimally or not processed, and get our protein from the same place animals do: plants.

"I went plant-based for a full year in an effort to see how it would affect my body," McClain explained as he sat in his house in California, tanned from biking outdoors all season. He found out that as he ramped up his daily workouts, the mostly vegan diet helped him increase his endurance, shorten his recovery times, and lowered joint inflammation. He now recommends that any athlete try it, if he or she is dealing with a nagging injury or has ever had to curtail a workout due to joint pain or inflammation, which can be both a symptom and a cause of injuries.

First of all, stop working out harder, just eat smarter, says this sports doctor

You train and you train and you train, but if you don't see results, and you're not getting faster, stronger, or leaner, or see the specific fitness gains you're sweating for, Dr. McClain says you need to change what you're doing. Just working out harder will result in injury. He has seen athletes work hard and not achieve their goals, which is where a plant-based diet comes in.

"One day you get injured with a pulled muscle or tweaked hamstring, a strained sciatic nerve," he says. For one reason or another, you have to change what you're doing and you end up in a doctor's office. If you're lucky he or she will suggest that you change the way you're working out, and your diet.

New research shows that short, "bite-sized" bursts of activity are now believed to be the most effective way to burn fat without having to work out for hours, according to a study done on cyclists. When people were measured doing these micro-bursts of energy their fat-burning stayed up, 30 percent higher than sedentary study subjects, even a full day later. But working out this intensely even for short bursts causes micro-tears in your muscle fibers, which is why it's even more important to eat a low-inflammation diet, rich in fiber and whole foods and lower in animal products such as processed meat and dairy. Athletes who ditch dairy often find that it has been causing inflammation in their bodies, and when they leave it behind, they are able to push their fitness to the next level. Training smarter is only half the equation. Diet is the other half.

But until you change your diet and lean into a plant-based approach, you haven't done everything you can do to help you reach your peak performance. By ditching meat and dairy and lowering inflammation in the body you will increase your endurance, strength, and overall performance, says Dr. McClain.

The latest thinking by leading sports medicine doctors who help their star patients realize optimal fitness gains: Get off of all animal products, especially red meat and dairy, he explains. "The Game Changers documentary showed how plant-based proteins can fuel a faster, stronger, more super-charged body, but a year and more later, the message is reaching more and more amateur and professional athletes, and I keep hearing from people who want to try it." McClain, who is Chief Medical Officer of LCR Health (Live Cell Research) explains that to get the body's cells to function at their best and build strong muscles through quick recovery times going all or mostly plant-based is worth it. He tells athletes to try it for a week, a month or even a year (as he did) and see what the results are on endurance, strength, and recovery times. He bets that you will see a difference in performance.

By giving up animal protein, meat, and dairy, and embracing plant-based sources of protein and non-dairy alternatives, studies show you also lower risk of diseases such as heart disease and diabetes, high blood pressure, and certain (hormonally related) cancers. For healthy athletes, the benefit is that they immediately feel a reduction in inflammation, less need for recovery time, and potentially avoiding pain or nagging injuries. "Choosing plant-based foods and avoiding meat and dairy can help support healthy weight loss and fitness goals by boosting the effects of exercise and lower inflammation in the body, which is an underlying cause and symptom of injuries and joint pain," he said.

Here are his recommendations on how to adopt a plant-based diet for ending injuries and helping shed stubborn unwanted pounds. The best news? You can eat more!

7 Reasons Athletes Should Eat a Plant-Based Diet, According to a Sports Doctor:

Reason 1: It fights inflammation and speeds up recovery time

Because plant-based foods have antioxidants, your body can heal and recover from a hard session faster. The first thing an athlete will feel when they go plant-based is inflammation leaving the body. And that makes it so much easier to reach the rest of your goals.

When we look at nutrients in the body, we have to look at: What is the mechanism of action, do we have the ingredient identified, and can we extract it? We know that vitamin C does better when taken in fruit, and as we start identifying the synergies of C and rosehip for instance and we also know that these are powerful antioxidants that fight inflammation and help in the repair of cells. After a tough workout, your muscles are damaged and release free radicals, or electrons, which are like the sand in the oyster that stimulates the pearl. Antioxidants come in, and quench the free radicals, blocking the damage so that taking antioxidants right after a workout will help repair the damage.

Reason 2: Food tastes better, so you eat healthier, more veggies

When I went vegan I tasted things differently and started cooking vegetables in a whole new way. I didn't realize you could do so many good things with vegetables. Mom was very forward-thinking but she still insisted on buying frozen peas, and I never thought I liked peas until I met my wife and we had fresh peas. It was a new experience. My wife is shucking peas as we speak. What I learned is that you can make vegetables taste great and for a lot of us, growing up in the south, you cooked them to death and then you loaded them up with sugar, salt, and fat, to make them taste good but now I realize that what tastes good is fresh ingredients cooked to bring out their flavor, not mask it.

Reason 3. You can eat as many whole plant foods as you want and not gain weight

I went vegan for a full year and for me, it worked But since I am built, and all of the athletic things I do, I had to eat all day long to keep up my calories. So that was an interesting change. I love eating, so actually, it was not that bad If you love to eat all day, go plant-based!"

Dr. Dean Ornish did wonders to educate us about the benefits of the Mediterranean diet for heart health. But I tell athletes, as we saw in The Game Changers, if what you want is to build up your endurance and power, then you should try switching to a fully vegan diet. Even if you don't tell yourself: I am never eating meat again, give yourself a time period and try it.

Reason 4. You are healthier and gain more endurance, strength, and lean muscle

Even if you are not a professional athlete, what we're discovering is that for the average person the larger number of plants in the diet is ideal. That is based on observation over a lifetime in medicine. I got into medicine -- I had an interest in nutrition since I was 11. I started to read the work of famed nutritionist Adelle Davis. I read that you could change your health by eating better, and I wanted to be a doctor.

Reason 5. You can skip the over-the-counter pain-killers

Taking curcumin instead of Advil is as powerful an antiinflammatory as any drug. NSAID's are the most over-used over-the-counter painkillers that people take. But they can achieve this same effect naturally with curcumin. For inflammation, curcumin is my go-to. I use the marina from then a gram in the morning and a gram at night. I've seen people abusing Advil and of course, NSAIDs are the number one cause of peptic ulcers and within three weeks of using curcumin instead. they are off the NSAIDs.

Turmeric is a great source but it's hard for the body to extract it, so by the time it gets all the way to the colon it is working, so it's more effective to take two 500 milligram capsules in the morning and two at night.

Reason 6: Your energy levels will go through the roof, and fatigue will drop

A major noticeable plus is that when your first go vegan your energy will go through the roof. That happened and my inflammation decreased. Those two things go hand-in-hand. If you are inflamed–and you may not realize that you are until you go off dairy and meat–you'll feel sore, have aches and pains, and that leads to poor sleep and feeling sluggish all day, and so you'll want to take a nap, and feel tired all the time. When you get off animal products you have so much energy you won't believe it. You get a lot done.

Reason 7: You'll be able to lose weight if that's your goal, and get plenty of protein

Your eating strategy should align with your goal. What is your goal? Why are you unhappy with your results in the gym? If you've been trying to lose weight, or you want to get strong but still want to lose fat, and your diet is not working then ask yourself, am I getting enough exercise and rest? Pea protein is always an option if you want to supplement, but it's so much better to eat your lentils and beans, and grains. You won't need to add powders.

There are plenty of ways to get protein from plants: Seeds, nuts, and legumes. If you just need a recovery snack peanut butter is a high protein food. Nuts are fatty, but the majority of the macro in nuts is healthy fat but also protein. When you try going plant-based you realize you can get what you need and you're not going to be lacking protein.

For the top 20 vegetables with the most protein, check this list.

The Top 20 Veggies with the Most Protein

Soybeans have 28.6 grams of protein per cup or 4.7 grams per ounce.

1. Soy Beans

Soybeans are a legume but they are such a great source of protein that we had to lead the veggie list with it. There is more protein in just one ounce of soybeans than a cup of sliced avocado! 1 cup equals Protein - 28.6g Calories - 298 Carbs - 17.1g Fiber - 10.3g Calcium - 175mg


Green peas have 8.6 grams of protein per cup or 1.5 grams per ounce.

2. Peas

If the pod, that peas are grown in, is split down the middle, that is an indicator they are ripe. Seeds inside the pod vary and can be green, white or yellow. 1 cup equals Protein - 8.6g Calories - 134 Carbs - 25g Fiber - 8.8g Calcium - 43.2 mg


Fresh corn has 5.4 grams of protein per cup or .9 grams per ounce.

3. Corn

Fresh corn is a great source of energy for those who like to stay active. Protein isn't all that corn has to offer. Corn provides the body with potassium and B vitamins. 1 cup equals Protein - 5.4g Calories - 177 Carbs - 123g Fiber - 4.6g Calcium - 4.9mg


Artichoke hearts have 4.8 grams of protein per cup or .8 grams per ounce.

4. Artichoke Hearts

Artichokes are part of the sunflower family. The fiber in artichoke hearts is great for supporting digestion. 1 cup equals Protein - 4.8g Calories - 89 Carbs - 20g Fiber - 14.4g Calcium - 35.2mg


Asparagus have 4.4 grams of protein per cup or .7 grams per ounce.

5. Asparagus

If not properly stored, Asparagus tends to go bad quickly, To elongate freshness, put damp paper towels around the stems, or place the entire asparagus bunch in a cup of water (like flowers) to maintain freshness longer. 1 cup equals Protein - 4.4g Calories - 39.6 Carbs - 7.4g Fiber - 3.6g Calcium - 41.4mg


Brussel Sprouts have 4 grams of protein per cup or .7 grams per ounce.

6. Brussel Sprouts

Brussel sprouts have more Vitamin C than an orange. If your Brussel sprouts have a rancid odor that is an indicator you overcooked them. The smell occurs because the sprouts are composed of a great amount of sulforaphane. 1 cup equals Protein - 4g Calories - 56.2 Carbs - 40g Fiber - 4g Calcium - 56.2mg


Broccoli has 3.8 grams of protein per cup or .7 grams per ounce.

7. Broccoli

If you are trying to lose weight broccoli is a great addition to your diet because it consists of 90 water and is also high in fiber. 1 cup (chopped) equals Protein - 3.8g Calories - 54.6Carbs - 11.2g Fiber - 5.2g Calcium - 62.4mg


Mustard Greens have 3.2 grams of protein per cup or .6 grams per ounce.

8. Mustard Greens

Mustard greens provide the body with tons of Vitamin A, Vitamin C, Vitamin K and fiber. Adding steamed mustard greens into your diet has been known to lower cholesterol and reduce inflammation. 1 cup equals Protein - 3.2 g Calories - 21 Carbs - 2.9g Fiber - 2.8g Calcium - 104mg


Avocados have 3 grams of protein per cup or .6 grams per ounce.

9. Avocado

Avocado is commonly mistaken as a vegetable but it is technically a fruit. This fruit had to be included in our veggie list because it isn't just tasty but super nutritious. Avocados are packed with protein but they are a great source of potassium and fiber. Avocados are a great addition to any salad, sandwich and even smoothie! 1 cup equals Protein - 3.0 g Calories - 240 Carbs - 12.8 g Fiber - 10.1g Calcium - 18 mg


Onions have 2.9 grams of protein per cup or .4 grams per ounce.

Onions are an unappreciated food hero since they provide 20 percent of your daily Vitamin C and deliver an abundance of antioxidants that can reduce inflammation. 1 cup (chopped) equals Protein - 2.9g Calories - 92.4 Carbs - 21.3g Fiber - 2.9g Calcium - 46.2mg


Beets have 2.8 grams of protein per cup or .5 grams per ounce.

11. Beets

The entire beetroot is edible including the leaves which contain loads of vitamin A, calcium, iron and potassium. Beetroot is high in sugar but is considered one of the most nutritious veggies used in salads and soups. 1 cup equals Protein - 2.8 g Calories - 74.8 Carbs - 17g Fiber - 3.4g Calcium - 27.2mg


Raw oyster mushrooms have 2.8 grams of protein per cup (sliced) or .9 grams per ounce.

12. Oyster Mushrooms

Oyster mushrooms are commonly seen in Chinese dishes. They grow best in a controlled environment indoors. Oyster mushrooms have so many nutrients to offer besides protein such as iron, calcium, zinc and folic acid. 1 cup (raw and sliced) equals Protein - 2.8g Calories - 37 Carbs - 5.6g Fiber - 2.0g Calcium - 2.6mg


Bok Choy has 2.7 grams of protein per cup or .4 grams per ounce.

13. Bok Choy

Bok Choy is a member of the mustard family. One of the oldest cultivated vegetables in the world, Bok Choy means "white vegetable” and is a great source of vitamins A, C, B6, K, and E, magnesium, potassium, iron, manganese, and calcium. 1 cup equals Protein - 2.7 g Calories - 20.4 Carbs - 3.1g Fiber - 1.7g Calcium - 158mg


Green beans have 2.4 grams of protein per cup or .9 grams per ounce.

14. Green Beans

Green beans are a great source of vitamins B, C and K, and minerals such as magnesium, iron and manganese. Green beans should be cooked before eating, to destroy lectins. China is the biggest grower of green beans in the world, exporting over 15 million tons a year. 1 cup equals Protein - 1.8 g Calories - 31 Carbs - 7 g Fiber - 2.7 g Calcium - 37 mg


Cauliflower 2.2 grams of protein per cup or .5 grams per ounce.

15. Cauliflower

The most nutritious way to consume cauliflower is steamed. Don't get intimidated by orange, purple or green cauliflower. All three types have the same benefits as white cauliflower. 1 cup equals Protein - 2.2g Calories - 28.6 Carbs - 5.4g Fiber - 2.8g Calcium - 19.8mg


Turnips have 1.6 grams of protein per cup or .3 grams per ounce.

16. Turnip

You can eat the entire plant, root and leaves. The turnip root is high in vitamin C and the greens are high in vitamins A, C, E, B6 and K, believed to counter inflammation. Add turnip roots to soup, or mash them. Add them to salads. 1 cup equals Protein - 1.6g Calories - 28.8 Carbs - 6.3g Fiber - 5.0g Calcium - 197mg


Alfalfa Sprouts have 1.3 grams of protein per cup or 1.1grams per ounce.

17. Alfalfa Sprouts

Alfalfa sprouts might be little but they sure are powerful. Plus they're quick and easy to grow. They are loaded with Vitamin C, Vitamin K, Iron and more. But because they have been known to carry bacteria, make sure to fully cook alfalfa sprouts if you have a fragile immune system or are pregnant. 1 cup equals Protein - 1.3 g Calories - 8 Carbs - 0.7 g Fiber - 0.6 g Calcium - 10.6 mg


Cherry tomatoes have 1.3 grams of protein per cup or .2 grams per ounce.

18. Tomatoes

Keep your tomatoes fresher for longer by storing them stem down. When exposed to sunlight the Vitamin C in a tomato will diminish. 1 cup equals Protein - 1.3g Calories - 26.8 Carbs - 5.8g Fiber - 1.8g Calcium - 14.9mg


Zucchini has 1.2 grams of protein per cup or .2 grams per ounce.

19. Zucchini

Zucchini has an abundance of potassium, even more than a banana! The reason zucchini isn't high in calories is that it is made up of 95% water. 1 cup equals Protein - 1.2g Calories - 28.8 Carbs - 7.1g Fiber - 2.5g Calcium - 23.4 mg


Spinach has .9 grams of protein per cup or .8 grams per ounce.

20. Spinach

Spinach is filled with Vitamin A, Vitamin E, Vitamin K, fiber and protein. The best part about spinach is you can sauté it, blend it or eat it raw! Spinach is best grown in rainy and cool weather. 1 cup equals Protein - 0.9g Calories - 6.4 Carbs - 1.0 g Fiber - 0.6g Calcium - 27.7 mg