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Evolution of the Zone: Making Diet Work for a Lifetime

The word diet often has negative connotations. It is often thought of as a period of constant hunger and fatigue to get into a swimsuit. People often also regain all the lost weight and more after stopping the diet.

A recent article reinforces this idea in Obesity that demonstrates the contestants in the Biggest Loser television series had virtually regained all their lost weight in a six-year period. This was followed by an article in the New York Times entitled, “Why You Can’t Lose Weight on a Diet.”

What Does the Word Diet Really Mean?

The word diet comes from the Greek root, which means “way of life.” This means that a diet should be followed for your lifetime, depending on your goal.

The American Heart Association diet, the American Cancer Association diet, and the American Diabetes Association diet were all designed to prevent or treat a particular condition and should be followed for life. The Mediterranean diet is to be followed for a healthy life. And of course, the Zone Diet is to be followed for a lifetime to maintain inflammation in a manageable range consistent with optimal wellness.

The Secret to Making Your Diet Work

The secret to maintaining any diet, whatever the goal, is that you can’t be hungry or fatigued. But hunger and fatigue don’t just mysteriously appear; they are symptoms that indicate that your diet is not working. Hunger and fatigue are the consequence of increased inflammation in your gut, your organs, and your brain.

There are many causes of inflammation that you will never see on social media or in academic journals because it is overwhelming. Here are just a few:

  • Excess dietary omega-6 fatty acids increases the production of pro-inflammatory eicosanoids.
  • Excess dietary palmitic acid increases inflammation in the hypothalamus, causing hunger.
  • Increased gut permeability caused by lack of dietary fermentable fiber that leads to increased bacterial fragments entering the blood, causing metabolic endotoxemia (the release of toxins into the blood from gut bacteria).
  • Excess dietary fat that increases the transport of bacterial fragments into the blood cause even more metabolic endotoxemia.
  • Excess consumption of dietary calories causing inflammation in the hypothalamus, increasing hunger.
  • Lack of adequate levels of dietary polyphenols to control the microbial composition of the gut and reduce oxidative stress in the body.
  • Lack of adequate levels of dietary omega-3 fatty acids to reduce inflammation and increase resolution in the gut, blood, and the brain.

You can see the word dietary appearing over and over in these various causes of inflammation.

This indicates that most of our woes in our health care system are a consequence of the diet. Unless you address each of these diet-induced causes of inflammation, you are going to have hard time maintaining optimal wellness. This is the challenge I took on when developing the Zone Diet.

The Zone Diet is Even Easier Now

First and foremost, the Zone Diet is based on calorie restriction, but without hunger and fatigue. The first generation of the Zone Diet required a person to constantly pay attention to balancing protein, carbohydrate, and fat at every meal. In addition, I took out the three things (pasta, pizza, and pastries) in the diet people really like to eat.

I guess my tough love was a little too much for busy people who needed easy short fixes resulting in long-term solutions. I could just say, “too bad,” or I could try to solve the problem with the evolution of the Zone Diet. I choose the latter approach.

This choice led to the development a new series of protein-based foods that could take the place of non-sustainable animal protein. Furthermore, these new foods were in a format that would be more convenient and more desirable than the foods people were already eating. After all, that is the only way to encourage people to make dietary changes. The resulting diet would have to create far greater appetite suppression with even greater energy compared to the first generation of the Zone  ̶  a formidable challenge to undertake, but not an impossible one to achieve.

What made it possible was the patented technology to create Zone PastaRx®. Zone PastaRx looks and tastes like the foods that in the past always made you put on body fat, but now they make you leaner.

Why? Because PastaRx is able to suppress appetite and stabilize blood sugar levels with improved hormonal control. This evolution of the Zone Diet changes the hormones in three areas of the body (gut, blood, and the brain), whereas the original Zone Diet could only change the hormones in the blood. In effect, this evolution of the Zone has three times the hormonal benefits using the foods you like to eat as a novel protein source.

What if you ate a diet consisting of Zone PastaRx with some non-starchy vegetables (for the fermentable fiber) for lifetime with the result of never being hungry or fatigued?

Furthermore, what if dozens of recipes were already tested and posted online so you don’t have to even think about variety?

I am taking a wild guess that most people could follow such a diet for a lifetime. By following this next generation of the Zone Diet, you will reduce diet-induced inflammation that is the underlying cause of the development of chronic disease, as well as the acceleration of the aging process. If you add high-doses of purified omega-3 fatty acids (OmegaRx®) and purified polyphenol extracts, you simply take those inflammation control benefits from the next generation of the Zone Diet to new higher level.

Studies Have Shown that PastaRx Reduces Insulin Resistance

The motto of Zone Labs is Evidence-based Wellness®. This simply means, “show me the data.”

In two clinical experiments using Zone PastaRx, we observed dramatic reductions in the level of insulin resistance in obese subjects using meals consisting of Zone PastaRx when compared to control groups using gluten-free pasta. Inflammation is what causes insulin resistance.  In fact, the reduction in insulin resistance in the subjects consuming Zone PastaRx was equal to that of giving insulin injections for newly diagnosed type 2 diabetic patients according to a study.

I think you can see why I believe the future for the evolution of the Zone Diet is extremely bright; because Zone Pasta makes diets work.{{cta('cd305230-6e34-42f6-9e2c-c2beda556f50')}}

References:

  1. Fothergill E et al. “Persistent metabolic adaption 6 years after ‘The Biggest Loser’ competition.” Obesity 24: doi: 10.1002/oby.21538 (2016).
  2. Aamodt S. “Why you can’t lose weight on a diet”. New York Times. May 6, 2016.
  3. Sears B and Perry M. “The role of fatty acids in insulin resistance.” Lipids Health Dis 14:121 (2015).
  4. Wang D et al. “Effects of intensive insulin therapy upon pancreatic β cell function in patients newly diagnosed with type II diabetes”. Int J Clin Exp Med 8:1391–1395 (2015).
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062524---Keto-Blog

Ketogenic Diets and Aging

Chances are, you or someone you know has tried the keto diet at some point in time. This high-fat, very low-carbohydrate eating plan appeals to many due to its promise of rapid weight loss. In this blog, Dr. Sears explores some of the latest scientific findings on ketogenic diets and provides caution before hopping on this trend. What is a Ketogenic Diet? The ketogenic diet is a high-fat, very low-carbohydrate eating plan. This significant reduction in carbohydrates to induce a metabolic state is called ketosis. This only occurs when there is not enough carbohydrates in your liver to completely convert fatty acids to carbon dioxide and water. The normal conversion generates the chemical energy (ATP) that keeps us alive. In the absence of ketosis, each fatty acid generates 108 molecules of ATP when oxidized in the mitochondria. Ketone bodies make less ATP when they are metabolized by mitochondria. How much less? About five times less. This is like switching the gasoline in your car from high-octane fuel to low octane fuel as ketone bodies increase in the blood. Furthermore, contrary to popular belief, ketones are not an ideal energy source for the brain, as glucose remains the preferred fuel for ATP production in brain cells. Lack of blood glucose is a highly stressful situation for the brain. This is why the body secretes the stress hormone cortisol from the adrenal glands during ketosis to breakdown protein and convert the amino acids into glucose for the brain. This explains why even under complete starvation for 38 days, the blood glucose levels never dropped below 68 mg/dL. This is still considered as a normal blood sugar level. Where did this blood glucose come from if there was none in the diet for 38 days? The answer is neo-glucogenesis primarily using lean body mass. Ketogenic Diets Pros and Cons Interest in ketogenic diets rises and falls about every 20 years. They’re very low-carbohydrate diets that claim that carbohydrates make you fat and keep you fat. This is simply not true. It is not carbohydrates per se but a disrupted metabolism that makes you fat. To be more specific, it is the inhibition of AMPK, the master regulator of your metabolism that makes you fat. Why? As AMPK activity increases, you burn stored fat faster. Frankly, I’ve always been amazed by the re-emergence of ketogenic diets. Eighteen years ago, I published the premier clinical study demonstrating that, under equal calorie intake in which all the food was provided to the subjects for six weeks, the Zone Diet was better than a ketogenic diet in reducing total weight, excess body fat, and inflammation. Now, a recent study revealed some more very concerning findings about the long-term effects of ketogenic diets. This new study indicated that following a keto diet causes a rise in senescent cells, popularly known as “zombie cells.” Zombie Cells are damaged cells that no longer divide but don't die. That’s bad enough, but zombie cells continue spreading inflammation throughout the body. As the number of zombie cells increases in your body, they become a living nightmare. Why? Zombie cells accelerate aging because they cause the earlier development of many chronic diseases. In this study they found that zombie cells in the animals began to appear while they were on a ketogenic diet. The zombie cells then disappeared when researchers changed the diet to a “non-ketogenic diet” (i.e., the Zone diet). And when the animals were given a Keto diet again, the zombie cells reappeared. Notice a trend? If you want to hear more about this study you can listen to our recent podcast at Dr.Sears.com. Based on earlier blogs, this adds to the list of downsides for following a ketogenic diet versus the Zone Diet. PROS Rapid initial weight loss: This is primarily due to the loss of retained water from the glycogen stores in the liver, which is rapidly used up to maintain blood sugar levels. Since these glycogen stores in the liver contain significant levels of retained water, much of the initial weight loss is water rather than stored body fat. If your main goal is loss retained water, this can be seen as a benefit. Of course, going to a sauna would also work. Reduced hunger: Ketogenic diets are rich in protein. Any increase in protein intake can help reduce hunger. CONS Production of acetone: One of the ketone bodies produced during ketosis is acetone, which is also the main chemical in nail polish. Increased calcium loss: A ketogenic diet can lead to higher calcium loss from bones. Limited fat utilization: High levels of dietary fat reduce the likelihood of using stored body fat for energy unless you also significantly restrict calories. Reduced energy levels: The lack of ATP production on a ketogenic diet can lead to easier fatigue during mild exercise. Damage from cheat meals: After seven days on a keto diet, a single high-carb cheat meal can damage blood vessels. Lack of polyphenols: This makes it difficult to activate genes that optimize metabolism by improving mitochondrial efficiency in converting fat into ATP. No long-term weight loss advantage: Long-term studies show no difference in weight loss between a ketogenic diet and a low-fat, high-carb diet. No short-term metabolic advantage: Careful studies demonstrate that fat loss on a ketogenic diet is the same as on a low-fat, high-carb diet with the same caloric intake. Compromised gut health: A lack of fermentable fiber from carbohydrates can lead to poor gut health and an increased risk of developing a leaky gut, which can cause significant inflammation. Furthermore, short-chain fatty acids (SCFA) are the metabolic product of fermentable fiber. These SCFA are powerful epigenetic signaling agents that enhance gene transcription. Ketosis generates a different type of hydroxylated short fatty acid (3-hydroxyl butyrate, that has no effect on gene transcription. In addition, the lack of SCFA has significant negative consequences on the gut-brain axis. Cortisol build-up: To produce glucose for the brain, cortisol levels increase to breakdown protein to make sufficient glucose via neoglucogenesis. Excess cortisol can lead to insulin resistance that cause regain of some of initially loss body fat. In addition, increased cortisol levels cause a depressed immune system as well as destruction of memory cells in the hippocampus. The initial benefits of following the ketogenic diet result in some initial weight loss (primarily water weight rather than fat loss), long-term studies show no significant differences in overall weight loss. Now new findings show a ketogenic diet may lead to significant adverse health consequences by accelerating the formation of zombie cells. Call me crazy, but I feel the key to longevity and wellness comes down to better metabolic control instead of living in a constant state of ketosis. Following Metabolic Engineering® for a lifetime provides that pathway of losing body fat without ketosis. References 1. Johnston CS, Tjonn SL, Swan PD, White A, Hutchins H, and Sears B. “Ketogenic low-carbohydrate diets have no metabolic advantage over nonketogenic low-carbohydrate diets.” Am J Clin Nutr 2006 83:1055-61. 2. White AM, Johnston CS, Swan PD, Tjonn SL, and Sears B. “Blood ketones are directly related to fatigue and perceived effort during exercise in overweight adults adhering to low-carbohydrate diets for weight loss: a pilot study.” J Am Diet Assoc. 2007 107:1792-1796. 3. Sung-Jen Wei, Joseph R Schell, E Sandra Chocron, Mahboubeh Varmazyad, Guogang Xu, Wan Hsi Chen, Gloria M Martinez, Felix F Dong, Prethish Sreenivas, Rolando Trevino Jr , Haiyan Jiang, Yan Du, Afaf Saliba, Wei Qian, Brandon Lorenzana, Alia Nazarullah, Jenny Chang, Kumar Sharma, Erin Munkácsy, Nobuo Horikoshi, David Gius. Ketogenic diet induces p53-dependent cellular senescence in multiple organs. Sci Adv. 2024 May 17;10(20):eado1463. doi: 10.1126/sciadv.ado1463. 4. Owen OE, Felig P, Morgan AP, Wahren J, Cahill GF Jr. Liver and kidney metabolism during prolonged starvation. J Clin Invest. 1969 Mar;48(3):574-83. doi: 10.1172/JCI106016. 5. Chriett, S., Dąbek, A., Wojtala, M. et al. Prominent action of butyrate over β-hydroxybutyrate as histone deacetylase inhibitor, transcriptional modulator and anti-inflammatory molecule. Sci Rep 9, 742 (2019). https://doi.org/10.1038/s41598-018-36941-9. 6. Silva YP, Bernardi A, Frozza RL. The Role of Short-Chain Fatty Acids From Gut Microbiota in Gut-Brain Communication. Front Endocrinol (Lausanne). 2020 Jan 31;11:25. doi: 10.3389/fendo.2020.00025.     

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050824---Tofu-Blog

Tofu: Tips and Recipes Ideas

I have been eating tofu for a very long time, much longer than the 30 or so years I have been following the Zone Diet. Back then many of my favorite recipes came from the Tassajara cookbooks by Edward Espe Brown, the celebrated chef from the kitchen at California’s famous Zen Mountain Center, and cookbooks by Louise Hagler, a.k.a. Wendy Louise, a well-known authority on vegetarian cooking who is associated with a community in Tennessee known as The Farm. Those books are still among the best resources for tofu recipes. My mantra has always been if you don’t like something, don’t eat it. Keep this in mind if you’re new to tofu, start slowly by combining it with flavors and foods you like.    Tips and Suggestions    Firm-sprouted tofu is my preference for the Zone Diet. Unlike traditional tofu, which contains significant amounts of both protein and carbohydrate, sprouted has almost no carbohydrates. It’s lighter tasting, refreshing, and very filling.   Freezing tofu results in a chewy, sponge-like texture. I don’t recommend freezing, but some people prefer it when using tofu to substitute for meat in a recipe.    Baked tofu comes in a variety of flavors and makes an excellent quick meal with some vegetables and fruit added. It’s also great in salads.     Tofu made it into the book “The Top 100 Zone Foods” by Barry Sears.    Some recipes call for draining the tofu first. I find that usually isn’t necessary.   Tofu takes on the flavor of whatever is added to it.    Add nutritional yeast flakes to give a cheesy flavor to vegan tofu scrambles and dips. It’s also rich in protein and vitamin B12.   Cherry Vanilla Tofu “Ice Cream”   Tip: This doesn’t freeze or store well, so prepare only the amount you plan to serve immediately.   Using an immersion blender or a food processor blend equal parts of frozen dark cherries and firm tofu, plus some vanilla extract (preferably alcohol-free for best flavor). Serve immediately.  Tofu Scramble  This is great for breakfast, lunch, or dinner, and we’ve even brought it on long day hikes for a snack.   Crumble some firm tofu and stir in a generous amount of seasonings, taking care not to overdo it with the salt. Heat in a well-seasoned or nonstick skillet with a little Zone-friendly oil to the desired doneness.    Optional: If time allows, sauté some chopped onion in the skillet before adding the tofu and seasonings.    My favorite seasoning combination for this dish at my house is onion powder, garlic powder, turmeric, paprika, some oregano or thyme, nutritional yeast flakes, salt, and ground black pepper. The yellow color of the turmeric makes it somewhat like scrambled eggs.   Tofu Veggie Almond Pasta Salad   Dressing: Thin some smooth almond butter by stirring in some water, a little vinegar, and either soy sauce or Bragg’s Liquid Aminos (an unfermented soy sauce found in the health food section of most grocery stores).    Toss together cooked Dr. Sears’ Zone PastaRx Fusilli, tofu cut into cubes, matchstick cut red bell pepper, chopped green parts of scallions (a.k.a. green onions), and the almond butter dressing. Serve immediately or chill to serve later. It will keep well in the fridge for two or three days.   Use your imagination and see what you can come up with.  Experiment and have fun with it. Try using tofu to make cheesecakes, whipped desserts, tofu chocolate pudding, tofu “cream” based soups, tofu pot pie (think chicken pot pie), tofu burgers, tofu burritos, Buffalo tofu (like Buffalo wings), layered Mediterranean dips, tofu “meatballs”, grilled tofu, and more.    Enjoy!   

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