Gary Null ("Ph.D.", dontchaknow), is an alleged researcher, nutritionist, herbalist, political activist and proud bearer of a great haircut. In his practice as a nutritionist he believes, among other things, that nutrition contributes significantly to overall health and well-being. This is simple common sense, but Null's practices and his brand of supplements are a step beyond this.
He believes that most of the ideas commonly held by Western medicine, such as treating illness with medication, are contrary to good health and that Western medicine attempts to treat symptoms, not the actual cause of the condition. He promotes and markets a variety of foods, herbs, supplements, fad diets and various other forms of woo that he claims to be able to cure and prevent many illnesses. His methods and suggestions are labelled "dubious at best" by most of the leading authorities and research bodies into arthritis, heart disease and cancer.
He is the author of many, many, many books, with titles such as 7 Steps to Overcoming African-American Health Problems, 7 Steps to Overcoming Arthritis and Back Pain (because thumbing through a fiddly book is going to be easy with chronic arthritis) and AIDS: A Second Opinion (which seems to attempt to refute pretty much everything known about AIDS).
Null claims a PhD in "Interdisciplinary Studies" (thesis title: "A Study of Psychological and Physiological Effects of Caffeine on Human Health") from Union Institute & University, a correspondence college. Union Institute & University is accredited by the North Central Association of Colleges and Schools — but its accreditation does not cover awarding of PhDs in the sciences, only in the humanities.
 I liked it so much, it nearly killed me
In a crowning moment of apoplectic irony, Null nearly died from overdosing on Vitamin D from eating his own branded "Ultimate Power Meal" twice a day. So you can't say he isn't sincere. He is suing the company that makes it for him.