Waec introduces new diet exam private candidates

I think there may be some confusion here.

WAEC (West African Examinations Council) is a regional examination body that conducts exams for students in West Africa. While they do offer exams for private candidates, I'm not aware of any new diet exam that has been introduced specifically for private candidates.

It's possible that you may be thinking of a different organization or institution that offers diet-related exams or certifications. Could you please provide more context or clarify what you mean by "diet exam"?