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The Primal Blueprint Carbohydrate Curve
Posted By Mark Sisson On January 14, 2009 @ 11:51 am In Carbs,Diet,Health,Most Popular Posts,Nutrition,Weight Loss | 626 Comments
Yesterday, low-carb blogger Dr. Michael Eades (he of Protein Power ) posted a message from his friend and fellow low-carb guru Richard Feinman  as sort of a call-to-action in public policy-making for upcoming 2010 USDA guidelines. Dr. Eades and Dr. Feinman have suggested that we ought to quickly find a way to help the USDA arrive at a sensible recommendation for carbohydrate consumption. Feinman asked:
“how can the benefits of carbohydrate restriction that you have experienced personally or in your immediate environment be translated into reasonable recommendations that the USDA could put out?”
In conjunction with my forthcoming book “The Primal Blueprint” , I have been working on an easy-to-understand explanation of how carbohydrates impact the human body and the degree to which we need them (or not) in our diet. I have also developed a chart (not the one above) that is intended to assist those who want to go “Primal” in visualizing the impact of carbs consumed within certain ranges. I was going to hold off on releasing this information until my book is published, but decided to introduce it here in response to Dr. Eades’ post. Since the choice of how many and what types of carbs in one’s diet depends on the context of one’s life (current weight, disease condition, activity levels, etc), I see carb intake as a “curve” ranging from “allowable” to “desirable” to “unhealthy”.
The following descriptions illustrate how carbohydrates impact the human body and the degree to which we need them, or not, in our diet. The ranges represent daily averages and are subject to variables like age, current height and weight and particularly training volume. For example, a heavy, active person can be successful at a higher number than a light, moderately active person. In particular, hard training endurance athletes will experience a greater need for carbs and can adjust their personal curve accordingly. This is a topic I address further in the book (e.g. – experimenting with adding 100g of carbs per hour of training per day), on MarksDailyApple.com  and in a future “primal” book dedicated to endurance athletes. Here then is my “Primal Blueprint Carbohydrate Curve.”
300 or more grams/day - Danger Zone!
Easy to reach with the “normal” American diet (cereals, pasta, rice, bread, waffles, pancakes, muffins, soft drinks, packaged snacks, sweets, desserts). High risk of excess fat storage, inflammation, increased disease markers including Metabolic Syndrome or diabetes. Sharp reduction of grains and other processed carbs is critical unless you are on the “chronic cardio” treadmill (which has its own major drawbacks).
150-300 grams/day – Steady, Insidious Weight Gain
Continued higher insulin-stimulating effect prevents efficient fat burning and contributes to widespread chronic disease conditions. This range – irresponsibly recommended by the USDA and other diet authorities – can lead to the statistical US average gain of 1.5 pounds of fat per year for forty years.
100-150 grams/day – Primal Blueprint Maintenance Range
This range based on body weight and activity level. When combined with Primal exercises, allows for genetically optimal fat burning and muscle development. Range derived from Grok’s (ancestors’) example of enjoying abundant vegetables and fruits and avoiding grains and sugars.
50-100 grams/day – Primal Sweet Spot for Effortless Weight Loss
Minimizes insulin production and ramps up fat metabolism. By meeting average daily protein requirements (.7 – 1 gram per pound of lean bodyweight formula), eating nutritious vegetables and fruits (easy to stay in 50-100 gram range, even with generous servings), and staying satisfied with delicious high fat foods (meat, fish, eggs, nuts, seeds), you can lose one to two pounds of body fat per week and then keep it off forever by eating in the maintenance range.
0-50 grams/day – Ketosis and Accelerated Fat Burning
Acceptable for a day or two of Intermittent Fasting towards aggressive weight loss efforts, provided adequate protein, fat and supplements are consumed otherwise. May be ideal for many diabetics. Not necessarily recommended as a long-term practice for otherwise healthy people due to resultant deprivation of high nutrient value vegetables and fruits.
Drop me a line in the comment boards. I’d love to hear your thoughts on this.
Primal Fitness 
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 Protein Power: http://www.proteinpower.com/drmike/
 posted a message from his friend and fellow low-carb guru Richard Feinman: http://www.proteinpower.com/drmike/low-carb-diets/the-low-carb-movement-needs-your-help/
 my forthcoming book “The Primal Blueprint”: http://www.marksdailyapple.com/what-is-the-primal-blueprint/
 on MarksDailyApple.com: http://www.marksdailyapple.com/primal-athlete-compromises/
 The Definitive Guide to the Primal Eating Plan: http://www.marksdailyapple.com/definitive-guide-to-the-primal-eating-plan/
 The Definitive Guide to Insulin, Blood Sugar and Type 2 Diabetes (and You’ll Understand It): http://www.marksdailyapple.com/diabetes/
 Primal Fitness: http://www.marksdailyapple.com/category/fitness/
 Find Out How>>: http://www.marksdailyapple.com/get-help/?utm_source=mda&utm_medium=link&utm_campaign=mda_footer_get_help
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