any dietition on this forum???/

hello every one

is there any dietition/nutritionist on this forum.
actually my little sis wants to become dietition and i am suppose to advice her on her career.

me and my other sibblings are either accountants or lawyer and no one in my family is in science field.
she is worried if she chooses this career she might end of failure. she is smart and has interest in science.

so is there any one in this field here?. how easy is it to get job in this field? are there many opportunities like other fields?

thanks