An American medical doctor who specialises in preventing and reversing disease through nutritional and natural methods.  He has written some great books and his website offers a wealth of knowledge.

Featured in a number of health documentaries including Fat, Sick & Nearly Dead.

If you are interested in supporting your family's health and learning more about a nutrient dense diet style, then his work is a great place to begin.  Loads of information covering all age groups and with the added benefit of understanding medications and how to move towards less or none rather than more!