She was attempting to work as a model when she started her food blog. I don’t buy her origin story of ill health, or at least not to the extremes of how she tells it — I think she was struggling to gain traction in the modelling world, probably had been told she would only ever be mediocre at best with a short shelf life, so was looking to transfer her appearance into something easier to market (or at least less cutthroat). Her looks and her social status were an integral part of her brand from day one.
And to think it would have been yoga or personal training chosen as her thing, if Sainsburys happened to be a chain of gyms…