A man and a woman have admitted running fake distance learning courses which netted sums of more than £200,000.
Katie Hope, 34, and Scott Wolfe, 38, pleaded guilty to two offences of fraudulently running two companies in 2015-16.
Their firms International Distance College and the British Nutrition Council duped 900 people into paying for qualifications which did not exist.
The case follows a two-year investigation and prosecution by Norfolk County Council Trading Standards.
Wolfe and Hope set up fake online nutrition courses which duped people - from as far afield as Canada, Singapore and New Zealand - out of about £200 each.
The court heard the British Nutrition Council and the International Distance College operated as online training centres for nutrition-based courses.
Wolfe and Hope claimed the courses were expertly written by them and were internationally recognised.
In fact, the courses used content copied without permission from other course providers and were not internationally recognised.
