1. Nutraceuticals: A Guide for Healthcare Professionals;Lockwood,2007
2. National Institute of Standards and Technology (NIST). Available from: 〈http://www.nist.gov/〉 (accessed May 2013).
3. UBIC-Consulting. A guide to enter the world nutraceutical ingredients market. 2011. Available from: 〈http://www.ubic-consulting.com/template/fs/Nutraceuticals%20Ingredients.pdf〉 (accessed May 2013).
4. American Nutraceutical Association. Available from: 〈http://www.ana-jana.org/〉 (accessed May 2013).
5. Legislation relating to nutraceuticals in the European Union with a particular focus on botanical-sourced products