At one time, I agreed with everything you have said. That was two years ago when I was sick and becoming increasingly incapable of daily life. I decided to give Isagenix a try. Why not? Tried everything else including an entire year of prescriptive drugs and miracle vitamin powders. Am I glad I made that decision. Today, my life has completely changed. In spite of the skepticism on your part, you cannot negate the real experience for someone else. I am sorry for your negative post because I think you might be keeping someone else from a better life’s experience. On another note, the best products I have in my cupboards are those that come from MLMs. They are typically higher quality and guaranteed. The distribution method is simply a choice. There is no difference if you get a product from Proctor and Gamble, Costco, Walmart or an MLM. Not all MLM products are untested nor certified. Goodness, I’ve used some certifiable products that flat didn’t work or were extremely dangerous. Why not post labels of all the “food” on the Grocery shelves and I bet you can’t even begin to explain what’s in them. Thanks for bursting my joy.
For a less-extreme cleanse, consider occasionally replacing a meal with fresh vegetable or fruit juice. “In moderation, or as an alternative to eating fruits and veggies, this can be a great way to supplement your meals and snacks,” Jantz says. “Juicing is a great way to concentrate the phytochemicals and nutrients found in veggies and fruits.” When you do it on your own at home, it’s also a lot less expensive than a prebottled system.

I was in poor health and using the Isagenix products helped me lose weight, begin exercising, and make healthier food choices. I continue to use Isagenix products as part of a healthy lifestyle. Unlike Dr. Hall, I am not an MD, but with that being said, many of her criticisms of the Isagenix products are not really accessible to the average person. So, Dr. Hall, I guess since you are writing so much about Isagenix, maybe refer us readers to other health professionals, perhaps in the field of nutrition that can speak with more credibility, to what you are saying.
I’m embarrassed and somewhat ashamed to admit that I was an Isagenix Associate for 2 years. I became aware of Isagenix through a friend (at the time) that I respected in the local fitness industry. I took only the main products (“Pillars of Health”), enrolled others, and for a while made some decent money. Luckily, I met another Certified Nutrition Consultant purely by chance during a layover at an airport and when I brought up Isagenix to her, because she knew a good amount about it from some of her clients that had come to her, she filled me in on many of the same “facts” (and I mean “facts” in a real and positive way) that you have mentioned throughout your blog. Well, of course, after meeting her I was bummed because I had so wanted to believe in Isagenix, and when I got home I spent hours doing research on my own – I had even taken notes at the airport. What the woman that I had met at the airport had told me was backed up by the research I did. Truthfully, there was always a part of me that didn’t feel comfortable with the whole thing, especially the 9 day and 30 day cleanse “systems” Isagenix highly promoted. I, personally, only sold a couple of the cleanse systems and one was to a good friend and he felt like crap during the 9 day cleanse and couldn’t wait until it was over. He did lose 3 pounds but like you said so many times, just because something makes you lose weight doesn’t make it healthy.
Get weight loss and cleansing off to a fast start with the 9-day supply of the Cleansing and Fat Burning System. Seven pounds is the average weight loss for people using the Cleanse and Fat Burning System for nine days.The five nutritional components of the system help you cleanse while infusing your body with premium nutrients for optimum health and safe weight loss. Stimulant free.
Debate provides a platform informed choice – in the spirit of increased knowledge and insight – thank you for this blog. We are all doing the best we can – for our bodies for our future 🙂 This program works for me – I am not an evangelist – as it may not be for you – but it just might be a better option than what people choose now – with obesity as an epidemic – I would suggest its the mainstream consumption habits of the western world that require a sprinkling of this education contained within this blog.

Thanks for reaching out. There are different stages of the Cellular Healing Diet; the advanced stage is basically the ketogenic diet, wherein may lie the confusion. The basic CHD may include small amounts of sprouted ancient grains, whereas the advanced CHD (the keto diet) includes no grains, but much more good fat and moderate protein. See here for Dr. Pompa’s article on ketosis: Ketosis 1: https://drpompa.com/additional-resources/health-tips/ketogenic-diet


Well Tracy… having experience in the food industry and seeing what happens to the chemically laden, GMO crap that sits around for months before getting to the produce aisle I would have to disagree with you. Even if the vegetable has some value coming out of the ground by the time it’s gone through the process that value is gone… Oh and the organic profit machine…yep they have your best interests in mind as well…LOL…
Also you should know Isagenixs is not just a weight lose product. It is used by athletes of all sorts. If you want to have some more credibility, explain how body builders are to obtain there needed nutritional intake just on whole foods and organic foods? The amount of protein needed in one day is almost impossible to eat, thus the shakes are very helpful.
Wow! What a ride! Reading through these comments had me laughing out loud at several points. It’s quite cringe-worthy to see people lashing out at you simply because they can’t comprehend the difference between opinion and fact, ESPECIALLY in the field of nutrition. Perhaps those people will eventually realize that an argument appears much more credible and relevant when combined with grammar, punctuation, and actual reasoning. Anyway, I just wanted to say thanks for all of the info, witty remarks, and hours of entertainment!

But when I consciously choose to travel to far away countries, be accepted by the indigenous people and accept them in return, who hold ancient knowledge and wisdom for the future betterment and evolution of our species, do service to a community, to be part of a combined and soul felt movement for love, understanding, acceptance and peace, then I am SOMEBODY.
Do not use if safety seal is broken. Do not exceed recommended daily intake. Do not use if you are pregnant or nursing. Not intended for use by persons under 18 years of age. KEEP OUT OF REACH OF CHILDREN. This product is not intended to be used without breaks. Cascara sagrada belongs to a family of plants containing compounds with laxative effects. With long-term use without breaks, this ingredient may interfere with diagnostic imaging procedures of the colon. Taking a break of 30 or more days between use cycles will help maintain natural regularity. Not intended for long-term use.,

There is only 1 product out of 47 that contains gluten it is the slimcakes which contain oats and wheat flour and therefore not suitable for gluten intolerant people. Their meal replacement shakes do not contain gluten, which is the main product people use to loose weight. Many gluten intolerant people use the products. You can find this on the allergen table http://media01.isagenix.com/corporate/ww/pdfs/Allergen-Table-2012.pdf


While frighteningly difficult to pronounce, this digestion-resistant carbohydrate source is quite natural and good for you. Oligosaccharides, in fact, are found in a variety of fruits and vegetables. The ingredient also acts as an important “prebiotic” that helps feed healthy intestinal microbes (1). That’s really about all that’s creepy crawly about it.


love the infoLove the info you post on here. Keep up the good work. I agree with you totally and people should fully read what you put down before getting on their high horse and telling you your wrong which you are not. Also on a side note you are very beautiful and I love what you stand for. Keep up the good fight. Education is the only way we can get our country to change its bad eating habits. If it didn’t grow naturally from the ground it should be left alone. Be smart about what you put in your body and the portions that you’re putting on your plates. Fad diets like all the shake programs out there will always leave you looking for the next quick program and you will have wasted hundreds of dollars and put the pounds right back on when you get board or no longer can justify the outrageous cost of which ever get thin quick program you are on. If you want real nutrition, stop with all the pills and supplements. And quit eating in front of your TVs. Cook a meal, get educated and stop blaming everything.

Your morning snack and lunch will consist of a Zero Belly Drink. Each delivers the three core nutrients (protein, fiber, and fat), and is based on plant protein, which reduces both sugar and bloating that you often get from whey-based proteins. Vega Sport and Sun Warrior are two of my favorite brands. Since the drinks average about 230 calories each, this step alone will cut about 500 to 1,000 calories out of your daily intake, which may take several additional pounds off your body in just seven days. The drink recipes at right pack such a nutritional punch that you’ll know you’re getting the vitamins, minerals, protein and healthy fats you need. Before each meal or snack, ask these three questions: Where’s my protein? Where’s my fiber? Where’s my healthy fat? Check out our picks for the 4 Best Zero Belly Smoothies for Weight Loss.

I have read some of Dr. Hall before, but hesitated to send friends the link bc the original website would be kind of overwhelming if not threatening to friends who have heard over & over or just accept alternate myths about energy, thought changing water crystals, etc. as passed on by so many yoga teachers & self-claimed healers as well as pop media. In this format I will be able to share.
He’s gone low carb, by cutting out refined fructose and other sugars. He’s lost 60 pounds, and has kept it off. He eats carbs. It is just that they are natural carbs from fruits and vegetables. He doesn’t experience cravings. He gets plenty of fiber, and he can eat anything that doesn’t have a ton of sugar added to it. He doesn’t eat much bread. He allows himself to have a little piece of cake on a birthday, etc. He’s healthy, happy, energetic. He educated himself. This is just an example. What works for one, might not work for you.

My sister and mom just started Isagenix, and they love it. I’ve been trying to get them to eat healthy for the past year, but they’ve been too lazy. Isagenix just seems like a way for people to lose weight with minimal effort. Sure, it is harder to actually take ten to fifteen extra minutes to actually make a meal, but it’s so much better for you. That being said, I do get that sometimes people need a nudge in the right direction, so I get the appeal. There are just so many other options out there!

Most diets have a very strict regimen that needs to be followed to see the desired results. This can have a detrimental effect on your health, making the entire purpose of the diet counter-effective. The Isagenix diet eliminates the ill effects and uncomfortable trips to the toilet. This is because the shake and cleansing days work together to improve health and flush out toxins from the body.
Isagenix was the only thing that has helped me lose any weight at all. They try to base their products off the Paleo system. They strive for quality ingredients. While you may say some of those ingredients are bad or unhealthy, I personally will not argue that. They completely 100% are. However we are talking about the extract of a certain part that is healthy vs the whole part. That is a huge difference. The developer of the products is a master in the industry to know what is healthy and what isnt in most plants and other resources to get its products from.
Recent studies indicate the presence of fructans in the digestive tract also protects against osteoporosis by increasing the absorption of calcium and magnesium, and may protect against diabetes and colon cancer. “Ingredient in tequila plant may fight osteoporosis and other diseases,” The American Chemical Society News Release, March 23, 2010 (http://portal.acs.org/portal/acs/corg/content).
At the beginning of the Isagenix “Are you Toxic” Video on their home page, their is also a disclaimer saying none of their research is backed by official scientific evidence!!!! It comes up so fast and dissappears as quickly but i paused it and presto!!! So really Dani is right, do your research !!!!! You dont need to buy her 21 day plan to talk about products in a blog you fool!!! You are the one who is mistaken about ingredients…
I found myself about 25 days ago, being faced with the choice of trying Isagenix. I looked into it. I did some research. I was discerning. And given that those who introduced me to it were close family and I had been watching their results closely and was actually impressed, I decided to give it a go. But lets be clear about something: I owned that decision completely. It was not sold, because I will not be sold to. Now, 20 days in, so many of my hopes and dreams are back in gear and the adventures I’ve been hoping and praying to be part of are within my conscious control. Isagenix didn’t do that. I did. I saw Isagenix as a tool and I realised that my application of that tool would be paramount to the success or failure of the venture. Sure, I understand and appreciate that some of the ingredients are suspect. But so is the fluoride added to water supplies that is still mandatory in most provinces and states of New Zealand and Australia where I’ve spent the majority of my 39 years. And we know what that stuff does to our pineal gland… right? And what the pineal gland does for us and how important latest neurological studies are suggesting it is to our overall experience as “living systems?” I really hope thats a bandwagon those of you with “credentials” are on. I don’t mean that disrespectfully, I sincerely mean that.
It depends on which 'program' you choose. The nine-day cleansing program, with products to "support healthy energy and help satisfy hunger", retails for $260, while a 30-day cleanse is $490. There's also a variety of products and product combinations on sale that retail from $29 for a single product to $783.00 for the 'Presidents Pak', which "combines best-selling products with proven marketing tools".

You’ve obviously never tried it. You can spout off all the random information you want, but Isagenix makes me FEEL better than anything I’ve ever eaten. Something unhealthy could never make me feel this good. I’ve eaten whole, unprocessed, healthy foods my whole life, but my health completely turned around when I started adding Isagenix into the mix. Haters gonna hate, but you will NEVER, EVER convince me that Isagenix is unhealthy. It is the best thing I have ever done for myself. Cheers!


Note, if you are watching calories, limiting your daily food intake or have drastically changed your diet to help support a nutritional cleanse, you may want to consider taking it easy with physical activity. Intense or vigorous activity requires adequate calories (especially from carbohydrates and protein) and if you are limiting your intake, you may not be eating enough to support this level of activity.
Now, don’t even get me started on the whole organic movement. Everyone knows that no organic farm out there is 100% free of pollutants and pesticides. As much as the organic farmer tries to be free of pesticides there is no guarantee. You see, the farmer next to him might use pesticides and depending on environmental conditions i.e., wind, rain, those pesticides and pollutants can easily end up on an “organic crop”. And there are no governmental controls in place to govern the whole organic market.
I think Dani is missing something here and she should be talking to Dr. Paul Anderson and the other scientists from Isagenix to get her answers instead of on a blog. Very tacky. If you are that sure you are right then go to the source of the products. Ask the hard questions. These people are very available and will speak to her. Once she has talked to them and she has the answers then put it on a blog. It makes me wonder about her motives are!
I will be honest, I rarely look at these types of articles let alone care to comment. But somebody wanted me to look at this. I for one am using isagenix. I have tried the Paleo diet. Although it is a great thing to use, the single biggest problem is you have no clue what is what. Even if you buy local or organic has no bearing if it is healthy or not. To slap an organic label while still using certain types of pesticides, herbicides and so forth still apply. My body personally can tell the difference.
Improves mood, curbs cravings, increases energy and decreases hunger. Green tea is rich in antioxidants including EGCG, which increases thermogenesis, which helps you burn fat and supports weight-management goals. IsaDelight Plus Dark Chocolate is made up of 70% non-alkalized cocoa powder, produced by a low-temperature process in a state-of-the-art US facility, to preserve potent antioxidants. Essential amino acids and an exclusive blend of B vitamins and minerals promote positive moods by elevating “feel good” chemicals in your brain, which helps to curb hunger and provide an energy “pick me up.”
If you do Zumba or CrossFit or power yoga or are in the midst of training for a marathon or the Miss Olympia contest, by all means continue. But whether you’re a couch surfer or an actual surfer, you’ll jump-start your weight loss if you add in a 10- minute walk outdoors. This easy a.m. ritual works on two levels. First, a recent study found that exposure to UV rays, even on a cloudy day, between the hours of 8 am and noon reduces your risk of weight gain. Researchers speculate that the morning light synchronizes your metabolism and undercuts your fat genes. And burning calories before you eat means you’re exercising in a fasted state. According to some studies, exercising in a fasted state can burn almost 20 percent more fat compared to exercising with fuel in the tank.
I am compelled to speak about my experience and say I have never been more sick from a self induced decision in my life. Day 3 was complete agony. I could barely get out of bed and the list of symptoms were unlike any flu or sickness I have ever had. Nausea, Headache, dizziness, joint pain, muscle cramps, shooting pains in my legs, incredible stomach pain, fatigue, terrible chills. I have been a zombie for the last 2 days and barely on day 4 (today) at 50%. I stopped the madness last night.
I’m not presenting an opinion. I’m presenting facts. That’s what all of you Isagenix supporters seem to not understand. It is a fact that the shakes contain denatured proteins. It is a fact that they use inflammatory oils. It is a fact that they use processed ingredients. So what exactly is my opinion in this? That these ingredients are unhealthy? Yes, because science says they are, and science does not lie.

Raw nuts and seeds provide healthy fats and protein. Dried beans and legumes, such as lentils and chickpeas, provide protein and phytonutrients. Brown rice, quinoa, teff and millet are whole grains that you can find in the bulk bins at health-food stores and in some grocery chains. The fiber in the whole grains and produce will help keep you full and helps regulate your digestive tract.
” Hi Hanh, Yes, I am with Isagenix. I understand how you feel that way about shakes also. I was glad I took the time to speak with the formulator. He’s an amazing person and he really understands how to put whole food nutrition into a shake. He explained to me how our body has to actually liquefy the food we eat and break it down into it’s most basic components. He decided to put together a shake that already had all the nutrients our body needs, broken down so our body does not have to do the arduous task of digestion. It tastes really good and I think that if you looked into it very closely you would find that like me, you would be very pleased. If you know anyone who would be interested in something like this and you referred them to me, I would truly be grateful. http://www.isagenixhealth.net
A refreshing, natural energy drink that helps to recharge and sustain your body’s energy for peak performance. Want More Energy is a natural fuel for the body, helping you to sustain your energy without caffeine or stimulants. It contains Betacarotene, Vitamins C and B-Complex to help replenish energylevels essential for peak physical performance and only natural ingredients with no artificial sweeteners or colours.
I find the fact that we have lost the ability to eat correctly astonishing. All these supplements,quick fixes,wonder drugs etc. They are all lies! We have allowed ourselves to be completely dumbed down! My basic philosophy is: Move regularly with intensity. Eat the most natural,whole foods you can and just monitor your portion sizes. It`s not rocket science..is it? Avoid the obvious foods like soft drinks,processed foods etc. Surely it can be THAT hard? I think the majority of the problem is that people have just become far too lazy and are too quick to blame everybody else for their own lack of discipline.
I too was encouraged to try that Isagenix product. 1 of my siblings is heavily into the scheme. She suggested it to me, and I tried it for almost 5 days until I started experiencing negative side affects. A week later she asked me if I wanted go with her to an Isagenix event where I’d become an associate., but after I naive agreed she informed me at the last minute that she needed to submit my social security number to the reps in charge so they could make an isagenix account for me, and for their tax purposes too. She had everything planned for the trip. But I felt pressured/trapped about giving out my ss number. I also did research about the product and I was shocked when I found it was a scam. It makes no sense why suddenly the company wants my ss number and insists I buy another of their products just to be a seller. So I politely informed my sibling that I refused to just throw out my personal info when I knew the company wasn’t Real!

This is a simple recipe. Just cut a few slices of raw cucumber and put them in your water just like you would with a lemon wedge. Speaking of lemons, you should definitely include a wedge of lemon or other citrus fruit. Drink at least eight glasses a day for seven days. For maximum effect, eat the cucumbers. This recipe is deceptively simple yet one of the best detox cleanse for weight loss.
Of course, the CAFO (Confined Animal Feeding Operation) has no regard for the cow, their well being or the calf. The cows are disposable production units, the calves are treated as a waste by-product. These poor abused, over-drugged, steroid-stimulated cows only live about 3 – 4 years (average life expectancy for Holsteins is usually 12 – 15 yrs) before they are either so sick or so worn out or so crippled up from living – standing up on cement floors, in hoof deep excrement/urine, with no room to lie down – being fed GMO grains, growth hormones, steroids, antibiotics – shocked, kicked, beaten, burned, smashed with tire irons or shovels, herded with front-end loader tractors then scooped up, plowed over/under/out to the trash/waste pile. All so that YOU can have your diet products with whey, and non-fat dry milk.
"The term 'detox' has become a buzzword that is often misused by the media and consumers," says Jackie Armstrong, MPH, RDN, EP-C. Jackie is a Performance & Wellness Nutritionist at Stanford University and the founder of Well-Fueled.com. She says that detox diets are often misunderstood. "Our organs and tissues are constantly in a state of detoxification — getting rid of unwanted substances produced by the body or from our environment." She goes on to explain that research is lacking to support the effectiveness of most detox diets.
I am telling you as a person who no longer uses Isagenix because I have developed an intolerance for fasting. So I have no vested interest in promoting these products. In my younger days in 2006, it helped me to lose 85 pounds as part of a diet program. I used the 9 day program probably about 4 times during that stretch and an average of about 13 real pounds, not water weight.
The main reason why a lot of traditional diets fail is that many actually starve the body of what it needs nutritionally. The body needs nourishment to function properly. The Isagenix 30-day cleanse systems flood your body with nutrients, and all it needs nutritionally, at the same time assisting it in removing the toxins and impurities that make us sick, tired and fat. All the products are 100% natural, as organic as possible and all sourced from the highest quality ingredients. 
The “heart healthy” diet is ridiculous – it consists of grains, low-fat foods, minimal meat, and processed food byproducts. It’s the opposite of what people should eat for heart health. Like I said in my other comment, when you’re testing against horrible diets in the first place, it’s not surprising that the outcome is positive. But it doesn’t mean that the products are ideal.
“Choosing healthier sources of fat can lower your risk for heart disease, and sunflower oil may help. Most of the fat in sunflower oil is unsaturated, and this oil is a nutrient-dense food, according to the 2010 Dietary Guidelines from the U.S. Department of Health and Human Services. In moderation, sunflower oil may provide certain health benefits as part of an overall balanced diet.”

THANK YOU! I have several friends who are currently on this and are trying to recruit me. I have hashimotos and have had three babies in five years. I am 60lbs heavier than I was five years ago and have tried everything. I eat clean, gluten free, soy free, refined sugar free, and try to be active (even though I want to sleep my life away) and don’t seem to be getting anywhere. I am at a point of desperation and was very close to caving and trying it been though it goes against everything I believe to be healthy. This article has reiterated the things I was already telling myself. So glad I found you before I caved 😉
Agreed! I sold Isagenix, and I used the products and had amazing results. I even called myself a “coach”. (very dangerous, as I was “teaching” people about something I knew nothing about) I knew nothing then compared to what I know today. While SOME ingredients that are in Isagenix’s products are very healthy for you, there are SOME that are not. So why would I use a product that has only some good things in it? I am going to share my research on one of (what used to be) my favorite bars: Here is the link – http://www.isagenix.com/~/media/product/isalean-bar/isalean-bar-fact-panels/us-en-fact-panel-isalean-bar-chocolate-decadence.pdf
The bottom line is that a cleanse might seem innocent enough for speedy weight loss, but it can have serious consequences for your health and metabolism, especially if you have any medical conditions. If you’re really interested in trying a cleanse, get your doctor’s go-ahead and guidance, so you can reap the benefits of fruits and vegetables without putting your health at risk.
Product B positively supports telomere health by combining scientific breakthroughs in telomere support and the benefits of antioxidants in youthful ageing. Isagenix Product B helps maintain harmonious function of cells and healthy telomeres so you can live a longer, healthier life. Product B’s full spectrum of natural bioactive antioxidants helps fight the effects of free radicals that lead to oxidative stress and contribute to poor health.
Anyway…I was kinda excited to do it, but once I started I HATED every single day of it, especially the cleanse days. The “wafers” or whatever they called them, which was the only solid thing ingested on those days were absolutely HORRIBLE. I gagged just thinking that I had to eat them. The shakes were OK, but I had had better. I didn’t order anything extra, like soups or bars…just what came with the initial order. GROSS…everything else was so gross. I couldn’t eat the bars, the stuff they gave you to put in water was just awful.

I also looked at the amino acid distribution. Firstly, since the mixture is completely and totally fabricated why not get the amino acid distribution to reflect the optimal profile of the essential amino acids for humans? Secondly, when one looks at the branched chain amino acids (leucine, isoleucine, valine) it is clear that one shake provides the required daily dose. Of course, convincing people that they need to consume two shakes a day works wonders in enhancing their profit margin.

3. Can the “results” be verified by clinical trials and not just anecdotal stories from enthusiastic but brainwashed distributors? Hey, I’ve been there, you get pumped up at conventions, everyone around you has a fantastic story to tell, they parade a bunch of docs or scientists up on stage and well… it goes on and on. I have nothing against the MLM industry per se. What concerns me and always has is that suddenly Mary Jones, a real estate agent or secretary goes to a few meetings, maybe a convention and suddenly is an ”expert” in nutrition, weight loss or whatever. I have been studying and practicing clinical nutrition for over 30 years. The one thing I know for certain is that the more I know and learn the more I know there is more to learn.
Will I sell Isagenix in my gym, probably not. Anything that uses a pyramid scheme for its sellers is very suspect. Also, the vast majority of athletes who come here are under 18 and I don’t feel that this type of product is appropriate. I do believe that natural is better. My grandmother lived to 93 without food supplements or replacements. It was good enough for her and it’s good enough for me.
I would encourage you to call the company and talk to the direct heads of departments before making such a false claim. Where is soybean oil listed in an of our ingredients? Lecithin yes but not oil. DO you know that New Zealand actually has higher milking standards than the USDA organic? just because YOU believe some of these ingredients are toxic means nothing..God created all sorts of food from the earth and it has only been the last few years we have decided foods that God created are “unhealthy.” ISagenix has saved many people’s lives and their health, whether they “sell” or not. So I just think it is very unprofessional to bash a company so rudely before knowing all the facts. You did yourself a blogging disservice.
You need to take into account how long someone is using a product, how much, are they doing other exercise etc. If someone’s diet only consisted of Isagenix I don’t think that would be good, however, a few items a day to help with energy, lower caloric intake while still giving high protein and helping someone get the energy to have longer days and exercise is a healthy thing.

Insulin sensitivity—how well insulin does its job of ushering glucose in the blood (after eating food) into the appropriate body tissues where it is used for energy—also looks to be “reset” by fasting. One study showed that healthy men who fasted for 20 hours every other day for 15 days had increased rates of glucose uptake, signifying improved insulin sensitivity and better blood sugar control (4).
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