The Paleo Diet and Diabetes: Preventing and Reversing Insulin Resistence

50% of Americans are pre-diabetic. Can getting back to your ancestral roots reduce your risk?

We’re in the midst of diabetes (type 2) epidemic. The global burden of diabetes doubled from 1980 to 2014, and it is rising rapidly in low to middle-income families and countries. (1) The World Health Organization predicts that by the year 2030, diabetes will be the 7th leading cause of death in the world. (2)

Today, 50% of Americans are classified as pre-diabetic or diabetic, despite experts being in agreement that the standard American diet (SAD) figures centrally in the pathogenesis of “diseases of civilization”. (3)

What is Diabetes?

After you eat a meal, your food travels from your gut to your liver, and finally into your bloodstream. In order to get blood sugars from your bloodstream INTO the cells, your pancreas releases insulin, which signals cell receptors to take up glucose. Insulin’s job (amongst many other tasks) is to lower your blood sugar levels and deliver the glucose to your tissues to fuel activity and cellular processes.

The Difference Between Type1 and Type2 Diabetes

Type 1 diabetes is an autoimmune condition in which the beta cells of the pancreas do not produce insulin. This is where the wonders of modern medicine save the day, providing lifesaving insulin that can be delivered after each meal. This condition requires the use of exogenous (i.e., medication) insulin to survive. Although this article will not address type 1 diabetes, there is still a crossover benefit from making the suggested changes (i.e., you use less insulin after each meal).

Type 2 diabetes occurs when your body becomes “resistant” to insulin. What does this mean? Imagine someone tapping you on the elbow; at first, you notice the stimulus but after a while, your brain becomes numb to the stimulus. This is similar to what occurs with type 2 diabetes: the bloodstream is constantly flooded with insulin due to the excessive consumption of sugars and processed carbohydrates, and the body becomes less sensitive to the blood sugar hormone. If your body has poor insulin sensitivity, it’s not very efficient at getting the carbs and sugars you eat into your cells, and your pancreas must, therefore, work overtime and continuously pump out insulin. This leads to chronically high insulin levels in the blood and eventually insulin resistance, the hallmark of diabetes.

Chronically high insulin levels are also a reliable predictor of virtually all the age-related chronic diseases. (4) However, if you’re struggling with weight gain or poor health, there is hope – you’re not destined to a life sentence of diabetes and all of its complications. Let’s take a closer look at how a Paleo diet can impact diabetes.

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How Paleo Impacts Blood Sugar and Insulin

There is a growing body of research on the impact of a Paleo diet on blood sugar and insulin response in the overweight, obese and diabetics. Below is a brief summary.

The Paleo Diet vs. American Diabetes Association (ADA) Diet

How does the Paleo diet stack up against the diet recommended by the American Diabetes Association (ADA)? The European Journal of Clinical Nutrition compared the two dietary interventions in 24 people: 14 on the Paleo diet and 10 on the standard ADA diet. After only two weeks, the Paleo diet group displayed significant improvement in insulin function (i.e., the root cause of diabetes), while the standard ADA diet group had no improvements in insulin. (5) These are powerful findings that shed light on the troubling fact that the standard ADA diet contains far too much sugar, carbohydrates, and processed foods, which are the likely culprits of excessive caloric intake and blood sugar dysfunction. (6)

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How Paleo Impacts Insulin and Leptin Hormones

In 2017, a study of 32 type 2 diabetics examined the effects of 12 weeks of a Paleo diet on insulin sensitivity, as well as markers of metabolic health. The results showed that the subjects who switched to a Paleo diet improved their insulin function by an impressive 45%, significantly improved their HbA1c levels (a 3-month average of blood sugar control), lost approximately 15 pounds, and improved leptin function, the body’s satiety hormone. (7) The authors concluded a Paleo diet improves insulin sensitivity, glycemic control, and leptin in subjects with type 2 diabetes. This supports earlier evidence that a Paleo diet, over a 3-month period, was able to improve blood sugar levels and markers of cardiovascular health in diabetics. (8)

Effects of An “Eat As Much As You Want” Paleo Diet

A small study of overweight, postmenopausal women examined the effects of consuming an ad libitum (i.e., eat as much as you want) Paleo diet for 5 weeks on markers of tissue health. The diet was approximately 30% protein, 40% fat and 30% carbohydrates. The results found reductions in waist/hip ratio, abdominal circumference, blood sugars, blood pressure, triglycerides, inflammatory markers (i.e., C-reactive protein) and apolipoproteins B (ApoB) and A1 (ApoA1). (9)

Long-Term Effects of The Paleo Diet

A long-term study, over the course of two years, examined the effects of a Paleo diet compared to the Nordic Nutrition Recommendations (NNR) diet on diabetes risk in 70 obese, postmenopausal women. The researchers found the Paleo diet group lost almost twice as much weight after 2 years, while also reducing triglyceride levels more significantly. (10) These are both reliable markers for reducing pre-diabetes and diabetes risk.

3-Step Paleo Solution to Prevent Diabetes

paleo diet, insulin resistance, insulin resistance diet, what is diabetes

1. Eat Low Carb Paleo

One of the most common nutrition myths is that if you increase your meal frequency – eat 5-6 small meals throughout the day – you’ll increase your metabolism and lose weight. A recent review of all the best studies on this topic since 1960 uncovered that there was unequivocally no benefit to metabolism or weight loss by snacking throughout the day. (11) On the contrary, more recent studies show people gain weight when their calories are spread throughout the day versus at only 3 square meals (at exactly the same caloric intake). (12)

To improve blood sugar and insulin control, start with breakfast. Remove all starchy carbs (i.e., bread, juices, cereal, muesli, granola, etc.) and stick to Paleo-friendly proteins, fats and a small amount of high fiber fruit like raspberries or blackberries. For lunch and dinner, stick to a low carb, high fat (LCHF), protein-rich Paleo diet and you’ll be fully satiated, won’t have to count calories, and you’ll see your waistline, blood sugars, and insulin all start to improve.

Don’t forget to ditch the snacking as well. The following are some quick suggestions:

  • mid-morning – coffee (no sugar) or black tea
  • mid-afternoon – green or herbal tea or water
  • late night – herbal tea or water

2. Move MORE

Lack of movement and exercise is a major underlying problem for diabetes risk. First, movement triggers a cascade of positive hormonal adaptations that improve insulin and blood sugar response as well as metabolic and cardiovascular health. Exercise also helps to build and maintain lean muscle mass, which acts as a “sponge” for dietary sugars and carbs and is a reliable marker for healthy aging.

Add more movement to your day on the two ends of the exercise intensity spectrum: low-intensity walking and high-intensity interval training (HIIT). Count your steps using an app, Fitbit-type device or pedometer and see how many steps you take on a regular day. Your goal should be 7,000-10,000 per day, but if you notice you’re a long way off that goal, then simply add 500 steps per week until you achieve the desired range.

HIIT training is phenomenal for improving blood sugars, insulin, and weight loss. It’s also incredibly time efficient. Get creative with your HIIT workouts; run outside, use the stationary bike, try the rowing machine, do step-ups or squats, etc. Aim for 20-30 seconds of “work” intervals, with a 90-second rest between each interval. (Need some inspiration? Check out these 10 HIIT routines).

3. Get More Quality Sleep

Lack of sleep is a major problem in today’s society. The average person gets about 6.5 hours of sleep per night, a far cry from our grandparents’ generation (who got over 8 hours per night). Over the course of a year, that amounts to a 500-hour sleep deficit. Lack of sleep worsens your blood sugar and insulin response to exactly the same meal, and a recent study found that even a single night of partial sleep deprivation worsens insulin function the next day in totally healthy individuals. (13) In short, if you don’t get enough sleep, not only will you likely crave more carbs and sugar, but your body will cope with them inefficiently as well.

To upgrade your sleep, aim for at least 7 hours of sleep per night. Get to bed before midnight and implement some fundamental sleep hygiene habits, such as: keep your room cold and dark, avoid stimulation from phones, iPads, and lights, and calm your nervous system with some relaxing reading, light stretching, deep breathing or a warm bath.

The Bottom Line

Getting back to an ancestral or Paleo dietary approach is proven to be an effective strategy for improving blood sugar, insulin dysfunction, and outcomes in clients with diabetes. Get started today or talk to your functional doctor, naturopath or nutritionist about how to tailor an individualized approach for you.

Check out this video by The Paleo Way for a delicious Roast Chicken Dinner!

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[1] World Health Organization. (2016). Global report on diabetes. Retrieved from

[2] Mathers, C. D., & Loncar, D. (2006, November 28). Projections of Global Mortality and Burden of Disease from 2002 to 2030. Retrieved from

[3] Menke, A., PhD. (2015, September 08). Prevalence of and Trends in Diabetes Among US Adults. Retrieved from

[4] Facchini, F. S., Hua, N., Abbasi, F., & Reaven, G. M. (2001, August). Insulin resistance as a predictor of age-related diseases. Retrieved from

[5] Masharani, U., Sherchan, P., Schloetter, M., Stratford, S., Xiao, A., Sebastian, A., . . . Frassetto, L. (2015, August). Metabolic and physiologic effects from consuming a hunter-gatherer (Paleolithic)-type diet in type 2 diabetes. Retrieved from

[6] Tarantino, G., Citro, V., & Finelli, C. (2015, September). Hype or Reality: Should Patients with Metabolic Syndrome-related NAFLD be on the Hunter-Gatherer (Paleo) Diet to Decrease Morbidity? Retrieved from

[7] Otten, J., Stomby, A., Waling, M., Isaksson, A., Tellström, A., Lundin-Olsson, L., . . . Olsson, T. (2017, January). Benefits of a Paleolithic diet with and without supervised exercise on fat mass, insulin sensitivity, and glycemic control: A randomized controlled trial in individuals with type 2 diabetes. Retrieved from

[8] Jönsson, T., Granfeldt, Y., Ahrén, B., Branell, U. C., Pålsson, G., Hansson, A., . . . Lindeberg, S. (2009, July 16). Beneficial effects of a Paleolithic diet on cardiovascular risk factors in type 2 diabetes: A randomized cross-over pilot study. Retrieved from

[9] Ryberg, M., Sandberg, S., Mellberg, C., Stegle, O., Lindahl, B., Larsson, C., . . . Olsson, T. (2013, July). A Palaeolithic-type diet causes strong tissue-specific effects on ectopic fat deposition in obese postmenopausal women. Retrieved from

[10] Mellberg, C., Sandberg, S., Ryberg, M., Eriksson, M., Brage, S., Larsson, C., . . . Lindahl, B. (2014, March). Long-term effects of a Palaeolithic-type diet in obese postmenopausal women: A 2-year randomized trial. Retrieved from

[11] Schoenfeld, B. J., Aragon, A. A., & Krieger, J. W. (2015, February). Effects of meal frequency on weight loss and body composition: A meta-analysis. Retrieved from

[12] Koopman, K. E., Caan, M. W., Nederveen, A. J., Pels, A., Ackermans, M. T., Fliers, E., . . . Serlie, M. J. (2014, May 13). Hypercaloric diets with increased meal frequency, but not meal size, increase intrahepatic triglycerides: A randomized controlled trial. Retrieved from

[13] Donga, E., Van Dijk, M., Van Dijk, J. G., Biermasz, N. R., Lammers, G. J., Van Kralingen, K. W., . . . Romijn, J. A. (2010, June). A single night of partial sleep deprivation induces insulin resistance in multiple metabolic pathways in healthy subjects. Retrieved from

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We’re here to give you the tools to move better, eat smarter and live the best version of yourself. On Paleohacks, you’ll discover realistic advice about your health, easy recipes with real food, and exercises focusing on natural movement. What you do with that knowledge is up to you. We’re just here to help you make the best, healthiest decision. So here’s to you and moving forward.