How Meghan Markle got former 'brutal drinker' Prince Harry to quit booze

Meghan Markle has had a hugely positive impact on Prince Harry's lifestyle.

Express reports that the Duchess of Sussex has "banned" her husband from consuming caffeine, tea and booze, the latter of which he dropped for the former "Suits" actress' pregnancy. Instead, she has pushed him to consume more mineral water.

Getting the notorious partier to stop drinking is quite the achievement, as a source noted that "he's been a pretty brutal drinker since he was a young teenager."

SEE ALSO: Kate told Meghan that she felt 'used' by her this past year

"He was always fidgeting and on the go, always looking for the next thrill," the insider explained. "He was a great laugh, but it was always very full on. Now his new regimen doesn't make him the most entertaining party guest in the world, but he's definitely more chilled and relaxed."

The royal family was reportedly "amazed" by Harry's new habits, which were on display at the Queen's intimate Christmas celebration, where Meghan and Kate reportedly made up after months of alleged feuding.

See photos from the royals' Christmas outing:

28 PHOTOS
Royal family at Christmas services 2018
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Royal family at Christmas services 2018
Britain's Catherine, Duchess of Cambridge (L) talks to Meghan, Duchess of Sussex as they arrive for the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge attends Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge attends Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, depart after the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge attends Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge greet well wishers as she attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge attends Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: (L-R) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex leave after attending Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
(L-R) Britain's Prince Charles, Prince of Wales, Britain's Prince William, Duke of Cambridge, Britain's Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex arrive for the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: (L-R) Prince Charles, Prince of Wales, Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex arrive to attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: (L-R) Prince Charles, Prince of Wales, Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex arrive to attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
(L-R) Britain's Prince Charles, Prince of Wales, Britain's Prince William, Duke of Cambridge, Britain's Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex arrive for the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Prince Charles, Prince of Wales, Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex arrive to attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
(L-R) Britain's Prince Charles, Prince of Wales, Britain's Prince William, Duke of Cambridge, Britain's Catherine, Duchess of Cambridge, Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex arrive for the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Meghan, Duchess of Sussex arrive to attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Stephen Pond/Getty Images)
KING'S LYNN, ENGLAND - DECEMBER 25: Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex attend Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2018 in King's Lynn, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Prince Edward, Earl of Wessex (L), Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex depart after the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
Meghan, Duchess of Sussex departs after the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, depart after the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
Meghan, Duchess of Sussex and Britain's Prince Harry, Duke of Sussex, greet wellwishers after the Royal Family's traditional Christmas Day service at St Mary Magdalene Church in Sandringham, Norfolk, eastern England, on December 25, 2018. (Photo by Paul ELLIS / AFP) (Photo credit should read PAUL ELLIS/AFP/Getty Images)
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The insider was sure to point out that, though it was Meghan who urged him to make the change, it's not something that Harry has done against his will: He's happier with his healthier lifestyle.

"All she did was show him there's another way to live, and he's become a huge fan," the source said. "He eats well, doesn't poison his body, exercises, does a bit of yoga and is a lot happier."

The new report echoes what other sources had previously said about Meghan's influence on Harry, which has also included getting him to work out more often and quit smoking.

SEE ALSO: The Queen 'reached her limited' with Kate and Meghan's feud

"Meghan is a beautiful influence on Harry," a source told People. "They both worked hard to be the healthiest they could be before they got married."

"Meghan encouraged Harry to get rid of any remnants of his party lifestyle," the insider added. "She wanted him to get in shape and be healthy."

Her efforts have also paid off immensely, with pals noticing that he's lost weight and has "felt amazing" over the past year.

"He couldn't have done it without her support," a friend said.

See photos from Meghan and Harry's wedding:

19 PHOTOS
The best photos from Meghan and Harry's royal wedding
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The best photos from Meghan and Harry's royal wedding

Prince Harry, Duke of Sussex and the Duchess of Sussex hold hands in the Ascot Landau Carriage as their carriage procession rides along the Long Walk, on May 19, 2018 after their wedding ceremony.

(Photo by Yui Mok - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex emerge from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Ben Birchall / POOL / AFP) 

Ms. Meghan Markle walks down the aisle at the start of her wedding to Prince Harry in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Danny Lawson - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex leave from the West Door of St George's Chapel, Windsor Castle, in Windsor on May 19, 2018 in Windsor, England.

(Photo by Ben STANSALL - WPA Pool/Getty Images)

The Duke and Duchess of Sussex on the steps of St George's Chapel at Windsor Castle following their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Danny Lawson - WPA Pool/Getty Images)

Prince Harry, Duke of Sussex and The Duchess of Sussex leave St George's Chapel, Windsor Castle after their wedding ceremony on May 19, 2018 in Windsor, England.

(Photo by Andrew Matthews - WPA Pool/Getty Images)

Princess Charlotte sticks out her tongue as she rides in a car to the wedding of Prince Harry and Meghan Markle at St George's Chapel in Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Andrew Milligan - WPA/Getty Images)

Britain's Prince Harry, Duke of Sussex kisses his wife Meghan, Duchess of Sussex as they leave from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Danny Lawson / POOL / AFP)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex wave from the Ascot Landau Carriage during their carriage procession on Castle Hill outside Windsor Castle in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Paul ELLIS / POOL / AFP) 

US actress Meghan Markle, accompanied by Britain's Prince Charles, Prince of Wales walks down the aisle toward her husband-to-be Britain's Prince Harry, Duke of Sussex, in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony.

(Photo by Dominic Lipinski / POOL / AFP)

Meghan Markle and her mother, Doria Ragland, are driven along the Long Walk as they arrive for her wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018.

(Photo by EMMANUEL DUNAND / AFP) 

Prince Harry and Meghan Markle during their wedding service, conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Dominic Lipinski - WPA Pool/Getty Images)

Princess Charlotte on the steps of St George's Chapel after the wedding of Prince Harry and Meghan Markle in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Jane Barlow - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex emerge from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Ben STANSALL / POOL / AFP) 

Meghan Markle is driven to St George's Chapel in Windsor Castle along with her page boys Brian and John Mulroney at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England.

(Photo by Toby Melville- WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and Meghan Markle, Duchess of Sussex, stand together at the altar in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony.

(Photo by Dominic Lipinski / POOL / AFP)

Prince Harry, arrives with his best man Prince William, Duke of Cambridge for the wedding ceremony of Prince Harry and US actress Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Odd Anderson - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex arrive back at Windsor Castle in the Ascot Landau Carriage after their wedding ceremony and after their procession in Windsor, on May 19, 2018.

(Photo by Steve Parsons / POOL / AFP)

Meghan Markle's mother Doria Ragland, Britain's Prince Charles, Prince of Wales and Britain's Camilla, Duchess of Cornwall leave the wedding ceremony of Britain's Prince Harry, Duke of Sussex and Meghan Markle.

(Photo by Ben STANSALL / POOL / AFP) 

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