Many studies show high carbohydrate diets are correlated with hyperglycemia, hyperinsulinemia, hypertriglyceridemia, and hypercholesterolemia. These are all medical terms for too much glucose, insulin, triglycerides, and cholesterol, respectively.

From Life Without Bread: How a Low Carbohydrate Diet Can Save Your Life by Christian B. Alan, PhD and Wolfgang Lutz, M.D., p 52

Type 2 diabetes is a disease of carbohydrate overload. . . Don’t be fooled by those who insist that reducing carbohydrate intake will not help diabetes. . . In our experience, almost everyone benefits from carbohydrate reduction, even if they have had type 2 diabetes for years and are taking drugs to lower their glucose levels. Ibid, p 46

Cancer cells prefer glucose for their energy source . . . Perhaps nutritionally induced cancer is simply a way to remove all this glucose. . . Other connections exist between insulin levels in the blood and cancer formation. Insulin is related to other hormones called growth factors (such as IGF-1), which in turn are responsible for many aspects of regulation, including tissue repair and cell division. There is increasing evidence that an imbalance of certain growth factors that are related to insulin can give rise to cancer formation. Ibid, pp 170-171

Cardiopathy (the term given to enlarged heart, insufficient energy to maintain a steady beat, or heart valve problem) all respond favorably to low-carb nutrition, although some conditions got worse BEFORE they got better. Ibid, p 105

[The] effects of gluten [from grain consumption] on the immune system, along with profound nutritional deficiencies that so often accompany gluten sensitivity, contribute to many modern diseases. . . Today these abnormal immune reactions can easily be identified by appropriate laboratory and clinical testing. The test results can be used to help identify your risk of developing full-blown gluten-related diseases. Testing also identifies causal connections between diseases, symptoms, and gluten consumption; disease prevention and reversal often follow a strict gluten-free diet.

From Dangerous Grains by James Braly, M.D., and Ron Hoggan M.A p3