Levels of mycotoxins in milk on sale in the UK are all within legal limits, with the vast majority having no detectable levels at all, a survey by the Food Standards Agency revealed today. The survey, part of the Agency's ongoing monitoring programme for mycotoxins in food, tested 100 milk samples (50 retail and 50 directly from farm) for the mycotoxins aflatoxin M1 and ochratoxin A. Both these chemicals have the potential to cause cancer in humans. Aflatoxin M1 was detected in only 3 samples and never above the legal limit of 0.05 micrograms per kg. Ochratoxin A was not detected in any of the samples tested.