Christina Aguilera's 40-Pound Weight Loss Secret Revealed

Christina Aguilera turned major heads with her 2023 weight loss, something she appears to have maintained into 2024. The "Beautiful" hitmaker, 42, once spoke of feeling that she was too skinny during her 2000s Stripped era. After many years of being curvier, the pop star has now shed a reported 40 pounds, and the secret behind her weight loss is now out. While stars including Kim Kardashian and Kylie Jenner find themselves accused of using weight loss drug Ozempic, Aguilera is said to have shed the weight with a very specific diet. Read on to see what it is.

Showing her weight loss in recent Instagram shares, Christina has had fans commenting on her slimmer frame.

Per The Daily Mail, Xtina has been "dedicating herself to a healthy, balanced diet and a rigorous exercise regime." More specifically, following the Rainbow Diet and controlling her calorie intake to no more than 1,600 per day. The average woman is said to need around 2,000 calories per day. The Rainbow Diet is pretty simple to follow and involves eating colorful vegetables every single day of the week.

While 1,600 isn't too low, it's likely enough to put Aguilera in a calorie deficit, meaning that she's burning more calories than she's taking in. In addition to consuming a wide variety of fruits and vegetables, the songstress is said to be preferring a plant-based diet over animal foods. Of her changing looks, she told People:

"I've seen myself go through different stages of my life and complain about certain things. As I've gotten older, I look back, and I'm like, 'God, every stage is a new era.' I'm really into feeling more self-assured as you get older. That's the thing to truly embrace. It's harmful when [aging] becomes an obsession." The Voice judge added: "Being in the public eye is an added element that can complicate your view of yourself. People are going to have an opinion no matter what you do, no matter what you wear. The artistry always comes first to me."

Anyone remembering Christina writhing around a boxing ring for her Stripped album will recall her rocking a very slender frame. She's even revealed that she was forced to stay a size zero as it was feared that being any larger might damage her career in show business.

"I had gained about 15 pounds during promotion and during my Stripped tour. They called this serious emergency meeting about how there was a lot of backlash about my weight," she revealed.

In October 2023, Xtina posted this look to her Instagram, showing off her cleavage and tiny waist as she gathered remarks about her weight. One fan told the singer that she looked like a "different person."