>>104632
Platelets are not magnetic. The Daily Mail article just says "Vaccine acts like a magnet and attracts platelets" as a loose metaphor for the concept of attracting something.
>I am quite sure the body is full of electrically charged cells and proteins and whatnot
Not really, nothing inside your body is ferromagnetic. Looking it up deoxygenated hemoglobin is slightly paramagnetic while oxygenated hemoglobin and plasma are slightly diamagnetic, but it's so weak it would be overwhelmed just by the heat of the body, let alone the turbulance of blood flow. That's why you can go inside a MRI machine and it won't really do anything to you, but if you have a piercing or something made of a magnetic metal it'll rip it right out of you.