13 Celebrities Before and After Going Vegan

Photo of Kevin Smith, one of the vegan celebrities included in this list.

(Updated May 5, 2020) | These 13 vegan celebrities all went vegan and have since promoted the positive effects of a plant-based diet.

Several of the celebrities included below found that cutting out animal products is an easy way to minimize contribution to both animal cruelty and climate change. Eating vegan can also have a positive effect on a person’s health, and many of the people listed here noticed an immediate change after adopting a plant-based diet.

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Studies show that plant-based whole foods are among the most nutritious. | Love & Lemons

Vegan Diet Health Benefits

A growing body of medical studies shows that the health benefits of a plant-based diet far outweigh those of more traditional diets. Eating plant-based foods regularly can be particularly good for your cardiovascular health, and several celebrities have used a vegan diet to combat health issues and aid recovery time.

Findings presented to the American Society for Nutrition last June indicated that a plant-based diet can normalize high blood pressure in less than two weeks. In 2017 Imperial College London conducted a review of several studies on fruit and vegetable consumption.

Originally published in the International Journal of Epidemiology, the report states that the risk of cardiovascular disease drops by around 13 percent when eating 200g of fruit and veg per day. Cancer drops by four percent, and the risk of premature death by 15 percent. When consuming 800g of fruit and veg this drops by 28, 13, and 31 percent respectively.

Adopting a plant-based diet has also been linked to a lower BMI (body mass index)—which is a commonly cited reason for trying to eat more vegan food. However, many experts have pointed out that BMI is not an accurate measurement of health.

A diet rich in plant-based food could improve health and reduce BMI.

Vegan Diet and Weight Loss

Some flexitarians and vegans have also found that a plant-based diet can help with healthy weight loss. While “healthy” looks different for different people—and preoccupation with BMI is not necessarily synonymous with good health—studies have shown that those trying to lose weight could be able to achieve their goals through a high-carb vegan diet. Several celebrities have used this kind of diet to help shed weight and to build up muscle, stamina, and fitness.

According to a study published in the journal Nutrients last year, a 16-week clinical trial revealed that a high-carb vegan diet resulted in lower BMI, weight, fat, and insulin resistance. The vegan diet emphasized whole, plant-based sources of complex carbs like fruits, vegetables, whole grains, and legumes. Increasing the intake of complex carbs instead of animal protein had a pronounced and positive effect.

Celebrities Go Vegan

While many people often first go vegan for health reasons, in learning more about animal agriculture’s effect on the environment—and animals themselves—many also begin to advocate for other aspects of the diet along with other social justice issues. These vegan celebrities are no exception. In fact, they’re leading the trend.

13 Celebrities Before and After Going Vegan
Animal advocate Kevin Smith first went vegan to get healthy after a heart attack. | Kevin Smith

1. Kevin Smith

Filmmaker Kevin Smith went vegan after experiencing a major heart attack in 2018. Smith addressed this on Facebook, where he thanked his family and said, “maybe it’s time to go vegan.”

Since then Smith has been very vocal about the health benefits of a vegan diet, which first prompted his transition. Smith has also commented on other positive aspects of going meat-free and has spoken about animal rights and welfare.

He previously appeared with his vegan daughter Harley-Quinn Smith in a promotional video for Farm Sanctuary. Last year, they also presented animal rights activist Lindsay Oliver with the Hidden Heroes Award at the Mercy for Animals 20th Anniversary Gala.

13 Celebrities Before and After Going Vegan
Evanna Lynch went vegan in 2015. | Evanna Lynch

2. Evanna Lynch

Actor and animal advocate Evanna Lynch is a Veganuary Ambassador and even has her own vegan podcast called The Chickpeeps. Lynch has been vegetarian since the age of 11 and gradually went vegan by adding more plant-based ingredients to her food.

The Harry Potter star first went vegan in 2015. According to Veganuary, her decision was based on compassion. She said in a statement, “It was just the right path for me. I felt like as soon as I went vegan, I was more myself, like I was just living according to what I believed, which is such a freeing thing when you finally commit to it.”

“I strongly believe in non-violence, that we shouldn’t be hurting other people or creatures,” said Lynch.

13 Celebrities Before and After Going Vegan
Will.i.am switched to a plant-based diet and reduced his cholesterol, blood pressure, and weight. | Wikimedia Commons

3. Will.i.am

The Black Eyed Peas frontman Will.i.am has also enjoyed multiple health improvements after moving to a vegan diet. He spoke to Arianna Huffington about it in an episode of The Thrive Global Podcast.

“I switched my regimen, went plant-based and it changed my life. I lost 20 lbs. My cholesterol came down, my high blood pressure came down. My stress levels came down naturally. I have more energy,” said Will.i.am.

“It changed my life, and I would encourage everybody to have a plant-based regimen,” Will.i.am added. “You don’t need the meat, you don’t need to have decaying flesh in your body. The more I think about it I was like, ‘Ew.’ I was just, I had death in me.”

13 Celebrities Before and After Going Vegan
Billboard’s 2018 “Woman of the Year” Ariana Grande has ten rescue dogs and a pet pig. | Wikimedia Commons

4. Ariana Grande

Ariana Grande adopted a plant-based diet in 2014 and has been a vocal animal rights advocate since.

Grande was named Billboard’s “2018 Woman of the Year”—in part due to her dedication to social justice. The musician has ten rescue dogs and a pet pig named Piggy Smallz, who sometimes features on Grande’s social media.

Grande told The Mirror: “I love animals more than I love most people, not kidding. But I am a firm believer in eating a full plant-based, whole food diet that can expand your life length and make you an all-round happier person.”

13 Celebrities Before and After Going Vegan
Simon Cowell adopted a plant-based diet for his 60th birthday. | Getty Images

5. Simon Cowell

The former “American Idol” host and music mogul Simon Cowell is now plant-based. Cowell switched to a vegan diet in April 2019, ahead of his 60th birthday.

“It has helped me sleep and I wake up feeling less tired. I noticed a massive difference in how I felt in about a week,” he told the Sun. “I have more energy and focus and it wasn’t difficult.”

“Within 24 hours I changed my diet and I’ve not looked back since,” Cowell said in an interview with the Sun. “You feel better, you look better.”

13 Celebrities Before and After Going Vegan
“I refuse to support the companies that buy from those companies killing and torturing animals,” says Lewis Hamilton on Instagram | Lewis Hamilton

6. Lewis Hamilton

Six-time World Champion Formula One racer Lewis Hamilton adopted a plant-based diet for his health but is now increasingly concerned with animal rights issues and the ethics of meat. Hamilton first announced his veganism on Snapchat, saying:

“Going to watch What the Health Tonight. I’m on a mission to go vegan, people. Animal cruelty, global warming, and our personal health is at stake.”

I have plenty of protein in my diet and I’ve gained muscle, and I’m healthier and happier than I’ve ever been. Wish I did it sooner,” he said.

Musician Miley Cyrus has been vegan since 2014 and has received awards for her advocacy. | Wikipedia Commons | Miley Cyrus

7. Miley Cyrus

Animal advocate and musician Miley Cyrus has been vegan since 2014. The celebrity frequently discusses her diet and received the Best Voice 4 Animals award from PETA in 2017.

On Instagram, Cyrus thanked PETA for the award and said: “I am very certain that veganism is taking over and stoked to see so many brands jumpin on this revolution!”

Cyrus has collaborated with fashion designers to create her own vegan-friendly clothing, including Converse. Since going vegan, Cyrus often Tweets her support for the vegan movement and is particularly vocal about speciesism and animal rights.

13 Celebrities Before and After Going Vegan
Craig Robinson lost 50 pounds and says he found the vegan lifestyle “amazing.” | Craig Robinson

8. Craig Robinson

“The Office” and “Brooklyn Nine Nine” star Craig Robinson gave up meat in January 2016 and said that animal-based foods had started to make him feel unhealthy. After moving to a plant-based diet and ditching alcohol Robinson lost 50 pounds.

“[I’m] working out and I’ve been trying this vegan lifestyle too. It’s amazing,” Robinson told talk show host Harry Connick Jr. “It’s much easier than I thought it would be.”

“I just wanted to push away from meat and stuff for a little while,” said Robinson. He added that he had “heard you can regenerate your liver in six months. I was like let me see if I can go six months and I just haven’t gone back.”


Mena Suvari has been vegan since the start of 2018. | Wikimedia Commons | Mena Suvari

9. Mena Suvari

Actor Mena Suvari adopted a plant-based diet in early 2018 after watching the 2017 documentary “What the Health.”

“I believe it was not only seeing footage of what happens within our world towards animals, but also the way that the documentary clearly explained the health aspect of veganism,” Suvari told LIVEKINDLY. “It all just instantly clicked for me and I went plant-based overnight.”

Suvari has worked on an anti-vivisection PSA with Last Chance for Animals and, since going vegan, overhauled her entire wardrobe. She donated all her animal-based clothes and started over.

13 Celebrities Before and After Going Vegan
@beyonce followed a vegan diet in the build-up to Coachella to help her maintain a strict rehearsal schedule. | Wikipedia Commons | Beyonce

10. Beyoncé

Musician and entrepreneur Beyoncé credited a vegan diet for her now-legendary Coachella performance in 2018.

In preparation for the performance Beyoncé and her performers adhered to grueling 11-hour rehearsals, which were powered by nutritious and plant-based foods.

Beyoncé’s personal chef prepared six daily meals to fuel the intense training regime, and Queen B shared three consecutive posts to her 112 million followers encouraging them to explore plant-based meals: “Vegan Time!! Click the link in my bio to join me!”

13 Celebrities Before and After Going Vegan
Zac Efron said vegan food has been great for his exercise regime. | Zac Efron

11. Zac Efron

Although he doesn’t currently adhere to a vegan diet, actor Zac Efron has experimented with veganism and has even credited his toned physique to plant-based food. Efron announced his vegan diet in an interview with Teen Vogue.

“I’ve been experimenting with eating purely vegan,” Efron explained. “That’s completely changed the way that my body works, and the way that I metabolize food, the way it turns into energy, the way that I sleep. It’s been brilliant. It’s been great for my exercise, and great for my routine.”

In February 2019, Efron ate dairy-free ice cream while recovering from knee surgery, and kept up with his vegan diet while on an off-grid camping trip with his friends.

13 Celebrities Before and After Going Vegan
“You are what you eat,” says Steve Harvey. | Wikimedia Commons

12. Steve Harvey

TV host Steve Harvey enjoyed multiple health improvements after adopting a vegan diet. On an episode of his NBC talk show “Steve,” Harvey discussed the high rate of heart disease in the United States and how a plant-based diet can help.

“Let me tell you something. I’ve been doing this since January 4, I got to tell you, I do feel a lot better,” said Harvey in March of last year.

“I have the cholesterol levels of an infant,” he added. “My cholesterol numbers are lower than my cardiologist’s cholesterol numbers… You can eat your way healthy. You are what you eat.”

13 Celebrities Before and After Going Vegan
The beauty mogul and reality star Kim Kardashian said she went vegan. | Kim Kardashian

13. Kim Kardashian

Kim Kardashian previously said she followed a plant-based diet.

In an Instagram video, Kardashian told Anastasia Soare—founder of the cosmetics company Anastasia Beverly Hills—that veganism was responsible for her slim waist. “Honestly, being vegan now helps,” says Kardashian.

The “Keeping Up With the Kardashians” star regularly shares pictures of vegan food on her Instagram, including plant-based sausages and mung bean-based JUST egg. Kardashian has also revealed that her wardrobe is now 100 percent fur-free, perhaps inspired by friend and fellow vegan celebrity Pamela Anderson.