Let's give to Caesar what belongs to Caesar: if one is so dumb to take health advise from a model with no specific knowledge, they deserve the consequences. I would not entrust my plumber to give any sound opinion on arthritis, but if listened to his opinion that WD40 is great for lubricating joints I would be the idiot for following his advice.
In these days of social media any average Joe can spit their opinion on the internet, even more models who thrive on being exposed. It's up to the public to constantly remind that a model is just a model, not a doctor or a lawyer.
But at least she is not (yet?) selling candles scented like her baby making tool...