Kate Middleton's Health Reportedly Impacted By Appearance At Trooping the Colour Amid Cancer Battle

Kate Middleton's widely praised appearance at the recently-held Trooping the Colour ceremony has reportedly impacted her health.

A royal commentator revealed that the immense effort Kate put into attending, including the physical strain of standing for long periods while undergoing "preventative chemotherapy," affected the Princess of Wales.

Kate Middleton reportedly decided to attend the Trooping the Colour ceremony herself, with the support of her medical team and family.

According to royal commentator Katie Nicholl, the princess' brave appearance at the Trooping the Colour ceremony on Saturday has affected her health.

"The princess has this sort of swanlike quality about her — she's sort of gliding on the surface — but beneath the water, I think often she's paddling quite frantically," Nicholl shared with Entertainment Tonight. "I can only imagine that a huge amount of preparation and time and effort and energy will have gone into Saturday's appearance."

The royal expert continued: "She was on her feet for a long period of time. There was a moment where she was watching the parade . . . and was offered a seat, which she gratefully accepted."

"That's just a bit of an acknowledgment that she is not as strong, not as fit, as she was before she went into this treatment," Nicholl added.

Despite undergoing chemotherapy, Nicholl observed that Kate "looked impeccable."

"If you didn't know that she was going through cancer treatment, you would never have guessed," she remarked. "I think a day like Saturday, where she knows the eyes of the world are on her, there is a huge amount of scrutiny that will take its toll."

Nicholl suggested that after such a taxing day, Kate likely enjoyed a long and well-deserved rest. "I don't think we can expect to see her in public for a little while," she added, noting that "it's going to take some recovery from."

Regarding Kate's choice to attend the ceremony, Nicholl shared that the decision was entirely her own.

"There was no pressure on her from anyone. She really wanted to do this," Nicholl explained. "She turned a corner in her treatment . . . When she turned that corner, I was told that Trooping was a goal for her."

"She was given the sign-off by her medical team. She spoke to her father-in-law about attending and to Prince William. They were fully behind her," the royal expert noted.

On Saturday, the Princess of Wales captivated fans by joining her husband, Prince William, and King Charles to observe the traditional military flypast with her three children after announcing on Friday that she was well enough to be present.

As the Red Arrows soared past the palace, trailing the colors of the Union Jack, the princess and her family waved to the crowd below.

Reflecting on her appearance, Nicholl remarked, "There's a great sense of pride in Princess Catherine. I think she felt very much that she needed to be there. The children looked so happy and relaxed having their mother there."

She added: "It was important, I think, for the Princess of Wales to be there to support her father-in-law, to be there for her family, and to be there for the nation to send out a really important message that she's doing OK."

On Friday, Kate announced she will attend the Trooping the Colour parade, marking her first public appearance since revealing her cancer diagnosis.

In an emotional statement, the 42-year-old shared that her recovery includes both "good days and bad days" but that she feels well enough to attend the ceremony.

"I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days," the princess stated. "On those bad days, you feel weak, and tired and you have to give in to your body resting. But on the good days, when you feel stronger, you want to make the most of feeling well."

In her statement, Kate confirmed her appearances at the Trooping the Colour event, noting that she's "not out of the woods yet."

"I'm looking forward to attending The King's Birthday Parade this weekend with my family

and hope to join a few public engagements over the summer, but equally knowing I am not out of the woods yet," she said.

Kate emphasized the importance of listening to her body to determine her capacity for royal duties.

"I am learning how to be patient, especially with uncertainty. Taking each day as it comes, listening to my body, and allowing myself to take this much-needed time to heal," she noted.