Christina Aguilera is sticking to a healthy diet during her second pregnancy.
'The Voice' USA coach reportedly gained 40 pounds while expecting her child Max - her six-year-old son with ex-husband Jordan Bratman - and is determined not to put on as much weight carrying this baby, her first baby with her fiancé Matthew Rutler.
A source told Life and Style Weekly magazine: "She is making much better choices and is adamant about staying healthy. She's telling everyone how vibrant and connected to her body she feels."
Christina had shed a lot of weight before getting pregnant and has so far been able to carry on with her healthy eating regime relatively easily.
Her man Matthew has also been doting on his pop star partner and getting her whatever she needs.
The insider added: "He's doting on her night and day and never leaves her side. He talks to the baby through her stomach - it's so cute."
One food Christina, 33, has developed an appetite for is blackened barbecued meats, a common craving among expectant ladies.
A source previously said: "The other day, she went nuts for a plate of blackened BBQ. She laughs about it, but she was also relieved when she found out this craving isn't all that strange."

Hilary Duff and Mike Comrie are trying to co-parent "peacefully."
The 26-year-old actress, who recently hinted she is trying to work things out with her husband after they announced their separation in January, insists they are putting their two-year-old son Luca's needs first.
Talking to Us Weekly magazine, she said: "We're really good friends and spend a lot of time together. We're just trying to figure out what makes us happy, but we have Luca as our priority. We're going to do it in the most peaceful way."
Meanwhile, Hilary says their two-year-old is keeping them on their toes.
She explained: "Luca's two, so he has a strong personality. He's spirited. That's a good word for him.
"He's talking a lot and trying to put words together, which is a big deal. But sometimes he does test me. I have a toddler bed on order, but he's already jumping out of his crib! I hear a thud and I'm like, OK, he tossed himself out. He's so funny. I say, 'What are you doing?' And he's trying not to smile because he knows it's kind of naughty.
"He opened his own door recently - I couldn't believe it."

George Clooney may wed at the country house where 'Downton Abbey' is filmed.
The 'Oceans Eleven' star whisked his fiancée Amal Alamuddin away for a romantic break in the English countryside this week, which took in Highclere Castle near London - where the period drama is filmed - and she was so taken by it, they made enquiries as to whether it could be used for their wedding.
A source told MailOnline.com: "George became close friends with Hugh Bonneville, who plays Lord Robert Crawley, when they did 'The Monuments Men' together last year.
"And they really hit it off. He contacted Hugh and asked him to arrange a private tour of the castle. Amal was blown away.
"When he saw his bride-to-be's reaction to the spectacular Victorian castle, set on 1,000 acres of parkland, he began making some discrete inquires about having their wedding performed there.
"And he was told they would be most happy to accommodate them."
Highclere is thought to be a good venue for the wedding as it is close to London and also to Heathrow airport, meaning George's family from America can easily fly, as can Amal's extended family who live in Dubai and Lebanon.
The castle is currently inhabited by the 8th Lord and Lady Carnarvon and their family and allows weddings, with prices to hire parts of the castle starting at $23,000 for a day.
The source added: "George loves the idea of marrying at the castle, because it's a glamorous place he could secure... Amal's Middle Eastern relatives would most certainly enjoy the exhibition, and the tour would make for a most memorable wedding."
Other venues the couple are said to be considering for the wedding are George's home in Lake Como, Italy, and Cabo San Lucas in Mexico, but it is thought Amal wants to be near where she grew up in the UK.
Another source said: "Amal grew up in London, and attended school in Buckinghamshire. "And she went to University at Oxford. She currently works in London so she has many close British friends."

Freida Pinto has an "obscene" number of shoes.
The 'Slumdog Millionaire' beauty admits to an obsession with footwear and has so many different pairs she can't count them all.
She told Harper's Bazaar Arabia: "They're my biggest obsession but I don't even know how many I have.
"It's a bit obscene for me, but I'm sure there are people that have way more.
"It's really weird though, because my love for shoes isn't because I want to wear them all. I mean, there are only so many days in the year, so it's impossible to wear all of them, but I have them because they're so beautiful, like works of art, and I love looking at them."
The Indian starlet and model was plucked from obscurity to win a lead role in Danny Boyle's 'Slumdog Millionaire', which went on to win eight Oscars, although she says she doesn't always feel pretty.
She said: "I was at an event with [model] Karlie Kloss last year and it was horrible standing next to her. She's a beautiful lady and I felt like a little ant."
Freida also says she felt like a star for the first time when she was dressed for the the premiere of her most famous film by Chanel.
She added: "It was amazing that the brand believed in me, and I felt very, very lucky. If you wear Chanel to a premiere, you feel like you've kinda made it."
Alongside Freida, another notable collector of shoes is Imelda Marcos, the former Philippine fist lady, who at one point had a collection numbering 3,000 pairs.

Miranda Lambert bought Carrie Underwood a motorbike.
The country singers recently collaborated on a duet of 'Something Bad' on the Billboard Music Awards, and as a thank you Miranda bought the 'Two Black Cadillacs' a new bike.
Next to her on a picture of her new hefty black two-wheeler, Carrie wrote on Twitter: "Well, it's not every day @mirandalambert buys you a motorcycle! Next stop, motorcycle driving lessons!!! #RansTheBest (sic)"
The singer also sent a message for Memorial Day in the US today, which celebrates those who have given their lives in the armed forces.
She added: "A GIANT thank you to our Armed Forces this weekend and every day for your sacrifices. #MemorialDayWeekend."
Carrie will have plenty of space to ride her new bike, as she and husband Mike Fisher bought 400 acres of land near to Nashville, Tennessee, in 2011, on which they have built their dream home.
The blonde beauty - who was catapulted to the spotlight after winning 'American Idol' in 2005 - has also been working on her fifth album, and has been writing her own tracks for it.
She recently said: "I've been writing quite a bit, it's exciting! It definitely has a different sound. There are some thematic things that are quite different. I love strong women. So I want things that I can get on stage and just feel empowered."

LeAnn Rimes say she and Eddie Cibrian "give each other s**t" all the time.
The 'Can't Fight the Moonlight' singer and her husband are set to appear in a new reality series for VH1, and say it will show how their relationship is more fun than people realise.
LeAnn told UsMagazine.com: "There's a lot of heart to it but there's also a lot of laughs. Eddie and I are very much that way in our relationship. We have a lot of humour between the two of us and give each other s**t a lot, so you see that."
The couple met in controversial circumstances, as Eddie was married to reality star Brandi Glanville at the time, but LeAnn says their day to day life is much less dramatic than people imagine.
She added: "People read about us constantly and it's so opposite of who we are.
"I think people really think we take ourselves seriously. It's so opposite of that but no one ever gets to see it.
"Other than the reason of us wanting to work together and be home with the kids, why not have fun and poke fun at everything that's gone on for the last five years."
LeAnn, 31, is stepmother to Eddie's two sons with Brandi, Mason, 10, and six-year-old Jake, but hasn't ruled out having more children with him.
When asked if she would like children, she replied: "Oh yeah! Sure! He's the best Dad already.
"I have a little bit of experience with the kids now so, I feel like I wouldn't be too crazed. It doesn't feel like a real first, first."

Demi Lovato claims sexiness is about being "confident and comfortable in your own skin".
The 'Skyscraper' singer has battled with self harm and an eating disorder in the past, but has arrived at a point where she is confident with her looks.
She told Maxim magazine: "To me, sexiness stems from being confident and comfortable in your own skin."
When asked what her best attribute was, she added: "My butt."
Demi, 21, also talked about what she looks for in a man, adding: "To get my attention a guy must be genuine, supportive, real, and have the ability to make me laugh."
Asked what her best mental attribute is, the star said her ability for self-improvement.
She explained: "The ability to work at bettering myself - I'm not perfect, no one is, but I'm working at becoming better every day. Every day I can look back and say I'm in a better place than I was yesterday."
While the 'Heart Attack' hitmaker likes to be sexy, she's not too keen to sing about the intimate side of her relationships in her songs as she doesn't want her relatives to hear.
She explained: "Sex is a part of life and it's a personal decision. Some people put it in their music, which is awesome and good for them.
"But for me, there's still that weird feeling in the back of my head that's like, 'All right, I know that my mom and dad are going to hear it and my little sister, and that's really weird for me.' "

Sir Mick Jagger is "looking forward" to performing live with The Rolling Stones again.
The legendary 'Brown Sugar' group postponed dates in Australia and New Zealand after the singer's partner, L'Wrenn Scott, took her own life in March, in order to give him time to grieve.
The band resume touring tonight (26.05.14), performing in Oslo, Norway, and Mick says he's ready to get back on stage.
He wrote on Twitter: "Had a beautiful walk in Frogner Park, Oslo yesterday. Looking forward to the first show! Mick #StonesOslo (sic)"
Alongside the message the 70-year-old frontman posted a photo of him smiling by a fountain.
L'Wrenn took her own life by hanging herself in her apartment in New York, leaving Mick distraught.
In a Facebook message written the day after her body was found, he wrote: "I am still struggling to understand how my lover and best friend could end her life in this tragic way.
"We spent many wonderful years together and had made a great life for ourselves. She had great presence and her talent was much admired, not least by me.
"I have been touched by the tributes that people have paid to her, and also the personal messages of support that I have received. I will never forget her."
The Rolling Stones' 14 on Fire tour will see them appear across Europe until July, then they will perform their rescheduled dates in Australia and New Zealand in October and November.

Amanda Holden thinks Simon Cowell will marry Lauren Silverman and have more children.
The reality TV mogul welcomed his first son, Eric, with the socialite in February and his 'Britain's Got Talent' co-judge is sure he will want to expand his family further.
She told Hello! magazine: "I do [think they will get married]. And I think they'll have more children too, because he loves it.
"Simon definitely should ask Lauren to marry him. He shouldn't let her get away. Lauren's such a good influence on him."
Amanda also thinks the notoriously picky TV star has found someone who will stand up to him in Lauren, and that she is someone who is unlikely to let him win all their arguments.
She added: "He's met his match in Lauren, 100 per cent."
Lauren has previously said she and Simon are in no rush to tie the knot and are simply enjoying parenthood.
The 37-year-old - who was recently granted a divorce from millionaire ex-husband Andrew Silverman, the father of her eight-year-old son Adam - said: "Of course we will get married eventually, but not yet."
Meanwhile, she thinks Eric looks more like his famous father than her, and isn't surprised by how well Simon has taken to being a father.
She said: "I think he's absolutely adorable! He does look a lot like his dad. He looks nothing like me.
"I'm not surprised, I knew he would be an amazing father. He's an amazing guy with a good heart. Sometimes when you get in a situation, you rise to the occasion and he really has. Simon's an amazing dad. It's so cute when I see them together. I just love it."

Gisele Bundchen has been named the new face of Chanel No. 5 perfume.
The Brazilian supermodel will take over from Brad Pitt to front the scent, and has been filming an advert with Baz Luhrmann to promote it in Sagaponack, New York state.
According to WWD, Gisele was chosen to represent the brand because of her "natural beauty and modern femininity."
After initial filming last week, the model will film further shots in New York City.
Baz is also no stranger to directing adverts for Chanel No. 5 as he previously helmed a 2004 campaign for the fragrance featuring Nicole Kidman.
Victoria's Secret beauty Gisele, who has two children - Benjamin, four, and 17-month-old Vivian - with her husband, NFL star Tom Brady, may be an internationally famous model, but she's not afraid to muck in and clean out the chicken run at her home in Los Angeles.
She explained: "I have a beautiful garden where I raise chickens. We have very little waste because the chickens eat all of the vegetable scraps, and anything they won't eat, I put in my compost pile with the chicken poo."

Lea Michele stole toilet paper from the White House.
The 'Glee' actress snuck some bathroom tissue into her handbag after performing for US President Barack Obama alongside the cast of her hit TV show in 2010 so she would always remember her brush with political royalty.
Sharing a list of 25 things fans don't know about her, Lea confessed to Us Weekly: "I stole toilet paper from the White House when the 'Glee' cast sang for Barack Obama."
The 27-year-old star also revealed she had some pretty unusual pets when she was younger.
She said: "Growing up, hermit crabs were my favourite pet. I had about 20."
The 'Cannonball' singer has two severe phobias, but getting naked in public isn't one of them.
Lea revealed: "In Broadway's 'Spring Awakening', I got naked on stage every night. [But] I'm terrified of sharks and dark water."
And the brunette - whose boyfriend Cory Monteith tragically passed away aged just 31 last summer - confessed one of her biggest regrets is not pursuing her Spanish skills.
She said: "I can recite all of Maria's lines in 'West Side Story' in Spanish. That's the only Spanish I know. My parents are fluent in Spanish, but they made me try to learn French."

Jim Carrey thinks his dad would have made a great comedian.
'The Mask' funnyman gave an emotional speech to students at the Iowa Maharishi University of Management this weekend, in which he encouraged them to follow their dreams, rather than taking the "safe" option in life.
He said: "So many of us choose our path out of fear disguised as practicality.
"My father could have been a great comedian but he didn't believe that that was possible for him, and so he made a conservative choice. Instead, he got a safe job as an account. "When I was 12 years old, he was let go from that safe job, and our family had to do whatever we could to survive. I learned many great lessons from my father, not the least of which was that you could fail at what you don't love, so you might as well take a chance on doing what you love."
The 52-year-old star - who also received an honorary Doctor of Fine Arts Honoris Caus degree at the ceremony - also warned money and fame aren't the answer to people's problems, and how Transcendental Meditation has helped him focus on what really matters in life.
According to www.TM.org, he added: "I've often said that I wish people could realise all their dreams and wealth and fame, so that they could see that it's not where they're gonna find their sense of completion. "Like many of you, I was concerned about going out into the world and doing something bigger than myself, until someone smarter than myself made me realise that there is nothing bigger than myself. My soul is not contained within the limits of my body, my body is contained within the limitlessness of my soul."