At 22, Caroline is among the youngest in the current batch of YouTube fitness influencers. She joined the site in 2018 after making a name for herself on Instagram, where she has 605,000 followers.
"Even though I have a bigger following on Instagram, YouTube is a much more engaging platform," she says. "People get a real insight into your life on YouTube and get to know you as a person far more than they could from an Instagram picture."
O'Mahony's videos today encompass fitness as well as travel, fashion and general life updates. One of her latest videos, '21 Things I Learned at 21', gives a glimpse of the competitive work ethic required to sustain a social media brand. "If you don't act, then someone else will," she tells viewers at one point. "We're not going to be young forever, and if you're not putting in the work now, someone else will."
The Corkonian herself only took to YouTube after signing up to represent an American gym wear company called Alphalete. "Everybody on the Alphalete team had a channel so that was how I was initially introduced to the YouTube world," she says. "Seeing how well the other athletes were able to connect with their audiences through YouTube really motivated me to step out of my comfort zone and make my own channel." Most of her subscribers are actually located in the States - probably, she thinks, because her two big sponsors are based there.
Although she follows a disciplined training regime, O'Mahony is insistent that healthy eating should never be punitive. She has no time for fad diets, she stresses. "The main message I try to get across is that you don't need to restrict yourself of certain foods and starve yourself to get in shape. You can live a very happy, balanced lifestyle and still get great, long-lasting results in the gym. On my channel, you'll find me eating Coco Pops, jellies, bagels and lots of other nice food that a lot of people think they need to cut out when they're dieting."
The uploads receiving the most engagement on her platform now are her 'Full Day of Eating' videos. "People seem to enjoy getting meal ideas from what I eat," she explains. Other popular videos include her question-and-answer sessions, touching on everything from sex and relationships to how she makes a living. It can be more difficult to remain private on YouTube compared to other platforms, she says.
"People will want answers if something happens in your personal life, which is understandable to some extent seeing as you've allowed them in and show them so much of your life already. It can be tough opening up to thousands of people online, especially with the amount of online trolls around, but I'm lucky to say that I have a very supportive subscriber base, which makes it easier to speak about the more personal side of things."