There isn’t a vitamin more important to your health than vitamin D. You need it to build and maintain strong bones. Your immune system is crippled without it. Vitamin D deficiency appears to raise the risk of almost every chronic disease, from cancer to diabetes to cardiovascular disease to age-related cognitive decline to auto-immune disease. Yet professor and nutrition researcher Peter Horvath at the University of Buffalo School of Public Health and Health Professions in Buffalo, New York, reports that during Buffalo’s winter months, nearly 50% of the population in Buffalo has insufficient levels of vitamin D, while 25% are outright deficient. “Every cell in your body,” he says, “is responsive to vitamin D. If you’re deficient, you won’t see the health effects for years and it could take months to get your levels back up.” Dr. Horvath is probably using the standard definition of vitamin D deficiency—a blood level of less than30 ng/mL (or 75 nmol/L). However other vitamin D e…

Nutrition experts at Tufts University say the average American consumes about 30 teaspoons of “added sugar” (that is, sugar not found naturally in food) a day. That’s a heck of a lot if you believe, as we do, that refined sugar and high fructose corn syrup are deadly metabolic poisons, and just 2 teaspoons of them throws your body into biochemical chaos for several hours. Or that honey and other natural sweeteners aren’t a whole lot better and should be used sparingly. Although the sugar industry keeps trying to convince the government and consumers that any form of sugar is safe in any amount, they’re fighting a losing battle. The science saying otherwise has become so overwhelming that even the conservative American Heart Association now agrees that added sugar is implicated in obesity, high blood pressure and other risk factors for heart disease and stroke. They recommend no more than 6 teaspoons of sugar per day for women and 9 for men. Last year, government Dietary Guidelin…