Carrie Underwood weight loss tips & tricks: country singer credits vegan diet for stunning post-baby body

In just a few months after giving birth to a healthy baby boy, Carrie Underwood is showing off her rocking new body.

In a report by Celebrity Health Fitness, Underwood admits that she only gained 30 pounds during her pregnancy and that it was the amount recommended by the doctors. Although Isaiah Michael Fisher was delivered via C-section, the celebrity was already able to walk around just 10 days after the surgery.

Underwood credited the quick weight loss to exercise and a vegan diet. She started working out again six weeks after giving birth, after getting the approval from her doctor.

Underwood's exercise routine involved hiking and boxing. During her interview with Shape magazine, she said, "I like to continually mix up my routines to stay motivated.""

Another personal favorite for the artist is doing the Tabata workout. She remarked during the interview that it was a workout that she could "do at home in about a half hour."

"I'm in love with it! It's hard, but it really works," she added.

She says, "I choose seven different exercises, like squats, lunges, or push- ups, and do eight rounds of each-20 seconds on, 20 seconds off for eight rounds. It really revs up my metabolism."

According to Celebrity Health Fitness, the singer is also a loyal vegan. She loves the taste of bread but admits to only having it during lunch.

"In the evening I'll have protein and vegetables and no bread. When I wake up, my belly is flat!" she revealed to Shape.

Underwood is only one of many vegans who testify on the effectiveness of the diet in losing weight and staying healthy. Other well known vegan celebrities include Demi Moore and Beyonce, according to Celebrity Health Fitness.

The American Idol alum admits to taking diet supplements containing Ephedra in the past. E Online notes that supplements containing this herb were banned by the U.S. Food and Drug Administration in 2004.

Although Ephedra was effective in helping people lose weight, the report stated that consuming the herb also increased the chances of getting a heart attack or stroke. In a few rare cases, taking in Ephedra also caused a fatal reaction.

"It wasn't the best way. If I could go back and talk to myself I'd be like, 'Here's how you do it the right way'," Underwood revealed to People magazine.

 "I weigh more than I did when I was at my smallest, but I have a lot more muscle tone," Underwood later added.