So far as I know, the oldest in the English language at least, is Banting's Letter on Corpulence. Having lost weight and dramatically improved his health on a low carbohydrate diet. Banting wrote and self-published the book back in the Mid-Victorian era, and he distributed it for free.
Read More »Fettucine Low Carb, Low Calorie Tofu Shirataki Pasta 8 oz bag by House Foods
Fettucine House Foods Tofu Shirataki Pasta - Low Carb, Low Calorie, No Cholesterol, No Sugar, Gluten-Free, Dairy-Free, Vegan, Guilt-Free.
Read More »