Anti-quackery crusader Ken Harvey has quit his job at La Trobe University over its $15 million deal with vitamin company Swisse Wellness to research its products.

Dr Harvey (below) tendered his resignation as adjunct associate professor in the school of public health in a letter to the vice-chancellor, Professor John Dewar, on Tuesday.

Dr Ken Harvey. Credit:Eddie Jim

Swisse said last week it had signed a memorandum of understanding with the university to contribute $15 million over six years towards a new complementary medicine evidence centre.

One of the centre's roles would be conducting Swisse-commissioned research ''to scientifically examine the quality and efficacy of its products''.