Tennis star, businesswoman and all-around American icon Venus Williams says she eats a mostly vegan diet. It's something that she started back in 2011 when she was diagnosed with an autoimmune disease calledSjogren's Syndrome; she realized that drastically changing her diet could help alleviate her symptoms.

Now 39, Williams says that being mostly plant-based or vegan helps herdial back the symptoms of debilitating joint pain and fatigue."I started eating raw and vegan for health reasons," Venus told Women's Health in a recent interview. "I needed to fuel my body in the best way possible."

Venus champion sister Serena Williams, and her husband Alexis Ohanian, both embrace a plant-based lifestyle as well. Ohanian said he does it to be a better father to their daughter Olympia, and he even joined an all-star lineup as executive producer of The Game Changers documentary about athletes who perform better on a plant-based diet.

Serena told Bon Appetit that she cleaned up her diet and started eating vegan when her sister Venus was diagnosed with Sjogren. She said that together, they learned to eat lots of raw foods and smoothies. While they do eat mostly plant-based foods, they both say they do cheat one in a while, calling themselves chegans recognizing they are not perfect and its ok to allow some room to be imperfect. "I try to make the majority of my meals raw and vegan, but Im only human and am known to cheat a little bit, says Serena.

So what does a day in the life of Venus vegan eating look like? Weve pulled out some of her go-to meals and snacks and created a short meal guide that will help you eat just like Venus.

Breakfast

Venus says she is not a morning person but keeps it light with a protein shake or smoothie. Especially since she trains in the morning, she doesn't want to eat a big meal. Serena also puts this into practice. Her husband Ohanian told GQ that his wife taught him the benefits of working out on an empty stomach to burn more fat and get more afterburn; he now follows his wife's lead and waits to refuel after.

Breakfast inspo:

Lunch

Venus says she is often busy between training and business meetings and often needs something quick or that she can eat quickly. "Depending on how much time I have for lunch and what my schedule looks like, lunch can vary from sweet potatoes and rice to a green smoothie," she says.

Lunch Inspo:

Snacks:

"Im often running from multiple practices to meetings for EleVen or calls with my design company, V Starr, so I am always looking for little things that are easy to bring on-the-go," she explained to Womens Health. She says she grabs a bar from CLIF when super busy for a small-but-mighty quick fill-up. Venus also opts for snacks loaded with greens and veggies like kale chips, green juices and smoothies.

Snack Inspo:

Dinner

At night, Venus goes for a salad or something that is easy to whip up. Her go-to is a homemade vegan caesar salad. She also tries to keep it light on the sweets, especially when training but keeps it real admitting that sometimes a girl just needs a donut!" We second that Venus!

Dinner Inspo:

For more plant-based recipes, and to start your plant-based eating plan, check out the Beginner's Guide to Plant-Based Eating here.

Read more:

Venus Williams Eats Mostly Plant-Based or Vegan, and You Can Too - The Beet