Vitamin C gets a lot of love from nutritionists. PubMed lists some 70,000-plus studies into this essential vitamin, looking at everything from its effect on sepsis to how it affects nanoparticle additives in food. When it comes to its potential as a disease fighter, those who study these things are pretty enthusiastic about it. “Vitamin C is the world’s best natural antibiotic, antiviral, antitoxin and antihistamine,” writes Andrew W. Saul, Ph.D., author of “Doctor Yourself: Natural Healing That Works” and editor-in-chief of Orthomolecular Medicine News Service. “As English literature concentrates on Shakespeare, so orthomolecular (megavitamin) therapy concentrates on vitamin C. Let the greats be given their due. The importance of vitamin C cannot be overemphasized.” But just because vitamin C is well-regarded, doesn’t mean it is simply a matter of taking more. There are different kinds of vitamin C and different ways that people need it or can better use it. …