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 »Chocolate Brownie Low Carb Gluten Free 2.12 oz. Protein Bar by Quest Nutrition
Chocolate Brownie Quest Protein Bars: Quest low carb protein bars: Who doesn't love chocolate? If you're a chocoholic, you'll love Chocolate Brownie Quest Bars! 20g of protein and only 5g net carbs.
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