Tooting's Labour MP has voiced her support for the Duchess of Sussex Meghan Markle after she and her husband Prince Harry spoke in a televised interview with US host Oprah Winfrey recently.

Rosena Allin-Khan MP, who also works as a doctor in the NHS, joined a growing number of voices lending their support to Meghan after she spoke candidly about her trials since joining the Royal family.

Tweeting on Monday (March 8) after the interview aired in the US the previous evening, Dr Allin-Khan wrote:

"Whatever your views of the wider issues, a mixed race woman is talking about her mental health struggles during pregnancy.

"Save your comments or theories, understand how difficult it can be and praise her for being so brave in speaking up."

The Tooting MP's tweet garnered over 1,000 likes on the micro-blogging site within minutes of being posted.

Her comments came after Meghan described her trials of being pregnant within the royal family, including accusations that senior royals questioned what colour her baby son Archie's skin would be.

A member of the royal family – who both Harry and Meghan refused to identify – was worried about how dark their son Archie’s skin tone might be before he was born.

Meghan told Winfrey there had been "concerns and conversations about how dark his skin might be when he is born".

Meghan also said she suffered mental trauma since joining the royal family, and had contemplated self harm and suicide, but received no help from the institution.

Asked explicitly by Winfrey if she was thinking of self-harm and having suicidal thoughts at some stage, Meghan replied: "Yes. This was very, very clear.

"Very clear and very scary. I didn’t know who to turn to in that."