Meghan Markle proves to be a good influence on her royal husband, with new reports that she has introduced another diet change for Prince Harry.

After the 34-year-old encouraged the 34-year-old to give up drinking during pregnancy and adopted a vegan lifestyle during the week, the Duchess of Sussex has banned her partner from banning caffeinated drinks – and the fans are losing it.

Since tea and coffee are now officially off the menu, Harry supposedly only drinks bottled water, which fans have labeled as "cruel."

"How do you forbid an Englishman to drink tea?" Wrote an angry fan on Twitter.

Another thought, the whole exam was "cruel and inhuman".

"Poor Harry," one of them agreed, while someone even declared that he was "no longer British."

However, the "reformed" prince is said to reap the rewards of his caffeine-free diet, with the royal family apparently being "stunned" by the difference in him, according to Express.

"Considering that he's been a pretty brutal drinker since he was a young teenager, that's quite an accomplishment," said a source in the release.

His friends have also experienced a difference in the expectant father, the insider said, revealing that he was "more relaxed and relaxed."

In addition to caffeine reduction, Prince Harry's health trick includes taking yoga and increasing physical activity, the source said.

Friends of the couple have reportedly defended the decision to force Harry to sacrifice tea – a staple among the British.

"All she did was show him there was a different way to live, and he's become a huge fan," said an unnamed friend of the publication.

"He eats well, does not poison his body, trains, does a bit of yoga and is much happier."

Last month it was reported that animal lover Meghan, 37, had encouraged Harry to lay off the meat and enforce a strict no-fur policy.

Only two months before the couple had tied the knot in May, the former suits star Prince Harry has been persuaded to quit smoking.

Continuation of the conversation @ RebekahScanlan | rebekah.scanlan@news.com.au

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