Paleo Diet – Dangerous Or Transformative?

Dr Terry Wahls

Paleo Diet – Dangerous Or Transformative?

by Dr. Terry Wahls

Traditional nutritionists often insist that Paleo-inspired dietary plans are dangerous to a person’s health. The article “Nutritionists warn of dangers in Paleo eating” quotes the chief executive of the Australian Dietitian Association, Claire Hewat, who states “any diet that excludes whole food groups should raise suspicions.” The numerous dietitians quoted in the article explain that there is plenty of science to support whole grains and legumes as healthy and relatively few studies that show the benefits of Paleo eating. While the article criticizes Paleo eating, the author appears not to understand the principles of Paleo diets or the research that has been done comparing how Paleo diets impact blood lipids, blood pressure, or other biologic markers that scientists and physicians associate with risk of disease. Let me review some of the challenges in doing nutrition research and what studies examining Paleo diets have shown.

Dietitians agree that nutrient density–that is, the amount of vitamin, mineral, and antioxidant content per calorie consumed–is key to improving health outcomes. Many believe that the best way to get maximal nutrient density is to follow governmental dietary guidelines and dismiss other dietary approaches that have not been studied in large clinical trials. Unfortunately, governmental guidelines have not been shown, through large randomized clinical trials, to be effective. These types of trials are enormously expensive. Some epidemiological studies have shown that consuming more vegetables and whole grains and less sugar and white flour, as in the Mediterranean diet, is associated with lower risk of developing heart disease, which is why so many are reluctant to remove grains from their diet.

Before we label Paleo diets as dangerous, we must look at the data. A randomized cross-over study by Jonsson showed that eating a Paleo diet conferred better control of blood sugar, lower hemoglobin A1c, better lipids, and lower blood pressure than eating the American Diabetes Association Diet. A study by Boers examined the effect of a Paleo diet on obese people with metabolic syndrome. Participants were randomly assigned to follow the governmental dietary plan or a Paleo diet for two weeks, and then had their blood biomarkers assessed. The Paleo group had larger improvements in their lipids and blood pressure than the governmental dietary group, suggesting the Paleo diet was more effective at restoring healthier blood lipids and blood pressures for those with metabolic syndrome. Another study by Jonsson showed that the Paleo diet was more satiating, or filling, per calorie than the Mediterranean diet.

I have developed a structured Paleo diet that maximizes the 36 vitamins, minerals, antioxidants, and fats recognized in articles on the macronutrient and micronutrient requirements for the brain and noted in a study by Bowman to be associated with superior cognition and brain size in older adults. Using Paleo principles, my diet provides the nutrients science shows brain cells need and provides 2 to 5 times the nutrient content of the standard American diet. The diet is described in detail in my book, The Wahls Protocol. Furthermore, we are conducting clinical trials to test the effect of the protocol on progressive multiple sclerosis. I use this diet to treat people with complex chronic health problems, many with a combination of neurological, psychiatric, and autoimmune problems, quite successfully.

Paleo diets have not damaged the health of the patients in our clinic or our trials. Quite the opposite. Those who have implemented the protocol have seen their pain diminish to zero, mood improve, weight melt away without hunger, and both blood sugar and blood pressure normalize. They are able to reduce and then stop medication after medication, including immune-suppressing drugs.

To learn more about my work and how diet and lifestyle changes could stabilize and even regress your chronic health diseases, impacting your brain and your body, visit my website:

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Dr. Terry Wahls is a clinical professor of medicine at the University of Iowa where she teaches internal medicine residents, sees patients in a traumatic brain injury clinic and a therapeutic lifestyle clinic for those with complex chronic disease. In addition she conducts clinical trials testing the efficacy of diet and lifestyle to treat chronic disease. She is also a patient with secondary progressive multiple sclerosis, which confined her to a tilt-recline wheelchair for four years. Dr. Wahls restored her health using a diet and lifestyle program she designed specifically for her brain and her mitochondria and now pedals her bike to work each day. She is the author of The Wahls Protocol: How I Beat Progressive MS Using Paleo Principles and Functional Medicine and the paperback, The Wahls Protocol A Radical New Way to Treat All Chronic Autoimmune Conditions Using Paleo Principles and teaches the public and medical community about the healing power of intensive nutrition.

Follow Dr. Wahls on Facebook. Follow her on twitter at @TerryWahls.

Dr. Wahls is conducting clinical trials testing the effect of nutrition and lifestyle interventions to treat MS. She is also committed to teaching the public and medical community about the healing power of the Paleo diet and therapeutic lifestyle changes to restore health and vitality to our citizens. To learn more about Dr. Wahl's research, visit her website:

6 Comments to “Paleo Diet – Dangerous Or Transformative?”

  1. Lyne says:

    Dr Wahls,

    Thank you for addressing the Australian dietitians response to a Paleo diet, a perspective that has gained increased focus and traction in this country.

    I would encourage you to contact the respected Dr Norman Swan, producer of the Health Report, to explore the topic further and to bring balance to the discussion. (The Health Report is broadcast on Radio National, the Australian Broadcasting Commission – ABC),

    Your informed contribution discussing the relationship between nutrition and health and the need to improve awareness around this subject is of great value to many.

    Thanks again,

  2. Terry Wahls says:

    Thanks for the suggestion. I did reach out to them. I have thousands of followers who have adopted a structured paleo diet (Wahls Diet plans) and have found that they have greater mental clarity, more energy and less fatigue. I have had individuals with ALS report benefit, though I do urge all with an ALS diagnosis obtain an evaluation from a functional medicine trained health care practitioner to perosnalize the protocol.

  3. Thanks Dr. Walls, the increase in my vitamin and better food choices has really helped my energy level. I’ve had relapsing remitting m s for since 2001. I was in wheelchair a month while in hospital but now I’m winning bench press competitons v.s regular people and now have hope for a brighter future with m s, as long as I continue to help others. Since the diagnosis, no more college sports though but I learned to maximize my other senses to maintain balance throughout this mysterious journey!

  4. You motivate me to keep on helping others who maybe lost to multiple sclerosis!

  5. Ivy Netzel says:

    Dear Dr. Wahls,

    Have you seen any reputable research comparing a Palo diet to a vegan diet for control of inflammation and as a result, control of inflammatory disease?

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