Open access is an important step forward in the evolution of scholarly scientific communication.
As with most things, a number of people are using this positive development for their own self-interested purposes. In the realm of open access journals, this comes in the form of "predatory" publishers of open access journals.
Explore some of the more egregious examples of articles published in predatory journals:
Articles from potentially predatory nutrition journal found in Google Scholar
Pareek, P., & Choudhry, M. (2013). Management of type 2 Diabetics by Indian Gum Arabic (Acacia nilotica) Pods Powder. International Journal of Food and Nutritional Sciences, 2(2), 77-83. (link to journal website)
Kumar, K., & Kumar, S. (2015). Role of nutraceuticals in health and disease prevention: a review. South Asian J Food Technol Environ, 1, 116-121. (link to journal website)