"Cut carbs first — none are essential Gary Brecka challenges the widely held belief that carbohydrates are necessary. He stated plainly that "there's no such thing as an essential carbohydrate" and that "while we have essential fats and essential amino acids necessary for life, carbohydrates are not essential, so you should be most judicious about your carb choices." When evaluating any diet change, prioritize eliminating the one macronutrient your body can produce on its own before adjusting the ones it cannot. Source: Gary Brecka, The Shawn Ryan Show, #163 Gary Brecka — Biohacking Secrets to Longevity"