Doctors must complete 30 hours of training a year to accumulate enough continual professional development points to remain registered as medical professionals.
If doctors pay to listen to Briton Holford's seminars on nutrition in the next week, they can earn as many as eight of the 30 points.
Holford has a bachelor's degree in psychology, has published 38 bestselling diet and nutrition books, and sells a range of supplements.
The dean of the faculty of medicine and health sciences at Stellenbosch University, Jimmy Volmink, was horrified.
"Patrick Holford has no legitimate qualifications in any area of nutrition.
"He has been widely discredited for making untruthful and unsubstantiated claims about the value of vitamin supplements.
"It is simply outrageous that the continual professional development system, designed to help health professionals keep up to date, is now being abused to this extent."
Holford claims on his blog that vitamin C can sometimes be better than vaccines in preventing viral illnesses.
He has expressed support for Andrew Wakefield, the doctor barred from practising after claiming that the mumps, measles and rubella vaccine contributed to autism.
Holford advocates eating healthily to prevent disease.
The SA Medical Association said its accreditation board would discuss the accreditation of Holford tomorrow.
It said it had told the Health Professions' Council of SA, which manages accreditations, of its concerns.
Cindy Evans Kidger, spokesman for the public relations firm retained by Holford, said Holford had submitted his presentations to both the Health Professions' Council of SA and the Allied Health Professions' Council of SA.
Evans Kidger said: "For medical professionals to be attending seminars such as these simply means they are educating themselves about nutrition."
The Health Professions' Council did not respond to requests for comment.
