Jay Z and Beyoncé are “humble and excited” to be on a vegan cleanse.

The rapper announced that he and wife were planning on staying vegan until Christmas Day – which is a full 22 days.

And it looks like the cleanse went off to a great start after the couple had lunch at healthy-living restaurant Real Food Daily on Wednesday in Los Angeles.

"The couple were sweet together, affectionate, jolly & in a positive vibe," an eyewitness told E! News.

"They were gracious, humble and excited to be there to begin their first day of their 22-day plant-based cleanse. They were also very thankful for the service."

Beyoncé’s sister Solange and two other friends also joined the couple for their meal.

According to the website, Beyoncé had the Spicy BLT wrap and enjoyed the tempeh bacon and Lentil Walnut plate. Jay Z apparently ordered the Mediterranean Bowl, and the entire table shares fresh organic juice and Lima Bean & Squash soap.

The group reportedly also ate The Great Cardini salad, Supreme Burrito, Sea Cake, Kung Pao, and a Veggie Wrap with mushrooms.

"Jay Z brought up that the couple were on a 22-day plant-based spiritual cleanse and that their friend recommended Real Food Daily for their first day," the source added, saying a waiter "discussed how a plant-based diet is a conscious choice, benefitting the body and the world at whole."