Confused about fruits? Think fruits cause acne?
Some people say it’s the devil’s incarnation and nature’s candy, which others say it’s the healthiest food you can eat. In this post I explain, in detail, why most fears about fruit and unfounded and why eating fruits fixes the underlying cause of acne and many other health problems.
This is an answer to Krystal’s question at Clear Skin Space forums. She asked:
Okay, seriously, what is the deal? Everywhere I look someone is saying eat fruit, don’t eat fruit, limit your fruit, fruit should be unlimited?
So my question is this..
Does fruit cause people to break-out?
Welcome to the wonderful world of diet and nutrition. Want to get even more confused? Surf to Amazon.com and search books with ‘diet’ in title. You’ll get about 300′000 results - all with different conclusions and recommendations.
But generally the most intense battles in these diet wars are fought on the high-fat vs. high-carb front.
This is important for acne victims because blood sugar problems cause hormonal reaction that can lead to more acne. Some doctors even call acne ’skin diabetes’.
As a disclaimer I live on a high-carb, high-fiber, high-fiber diet and eat very little fat. I don’t have anything against low-carb diets. I just don’t see them as very smart thing to do. But if you are currently on one and it’s working for you then keep up with it. In the end of this post I’ll add some good points about them.
PROBLEMS WITH LOW-CARB THEORY
If you listen to the high-fat, also called low-carb, guys and gals you should shun away from fruits and carbs. Their theory goes that since carbs raise blood sugar levels, which raises insulin levels, which are linked to many diseases (acne included) one should avoid carbs.
The problem is that it’s all baloney. That theory has been proven wrong so many times, both in lab and in real life. Before writing this I again researched the issue a bit. I really loved this comment on a review study:
The purveyors of these diets [low-carb] portray them to be scientifically sound. Although there is some scientific rationale, two common devices used to support contentions include the overinterpretation of data and weaving together of unconnected scientific observations, and these processes often border on sophistry. Nevertheless, driven by the increased prevalence of overweight and obesity, these diets are increasingly popular despite a relative lack of rigorous scientific data. These diets present an attractive alternative to challenging lifestyle modifications (i.e. intentional calorie reduction and increased physical activity).
Diet, Insulin Resistance, and Obesity: Zoning in on Data for Atkins Dieters Living in South Beach by Cristina Lara-Castro and W. Timothy Garvey
Here’s another aspect of low-carb theory that’s wrong.
The entire theoretical framework of low carb diets, like Atkins and The Zone, hang upon the notion that insulin is the root of all evil and so to limit insulin release one needs to limit carbohydrate intake. Dr. Atkins, for example, has a chapter entitled “Insulin–The Hormone That Makes You Fat,”[71] Protein Power calls it the “monster hormone,”[487] and the author of the Zone Diet calls insulin “the single most significant determinant of your weight.”[72]
What they overlook is that “protein- and fat-rich foods may induce substantial insulin secretion” as well.[73] Research in which study subjects served as their own controls, for example, has shown that under fasting conditions a quarter pound of beef raises insulin levels in diabetics as much as a quarter pound of straight sugar.[74]
Atkins’ featured foods like cheese and beef elevated insulin levels higher than “dreaded” high-carbohydrate foods like pasta. A single burger’s worth of beef, or three slices of cheddar, boosts insulin levels more than almost 2 cups of cooked pasta.[75] In fact a study in the American Journal of Clinical Nutrition found that meat, compared to the amount of blood sugar it releases, seems to cause the most insulin secretion of any food tested.[76]
Low carb advocates like Atkins seem to completely ignore these facts. Recent medical reviews have called Atkins’ feel-good theories “factually flawed”[77] and “at best half-truths.”[78] “In the scientific world, books like the Zone Diet are generally regarded as fiction,” one reviewer wrote in the Journal of the American College of Nutrition. “The scientific literature is in opposition…”[79] In a medical journal article entitled “Food Fads and Fallacies,” the Atkins Diet is referred to as a “‘New wives’ tale” with a “sprinkling of fallacies.”[80]
According to a 2003 article in the Journal of the American Medical Association, “Dr. Atkins and his colleagues selectively recite the literature” to support their claims.[81] When researchers take the time to actually measure insulin levels, for instance, instead of just talking about them like Atkins does, they often find the opposite of what Atkins asserted.
Phony Baloney
Atkinsexposed.org by Dr. Michael Greger
Another problem with the theory behind low-carb diet is that it over simplifies things. In the Blood sugar worries blog post I explained the concept of input and output.
THE REAL REASON BEHIND BLOOD SUGAR PROBLEMS
The main reason you get blood sugar problems is because the output side is not working well. Glucose cannot exit from the bloodstream. A condition called insulin resistance, which means that the insulin receptors in cells don’t work well, or they are down regulated. When insulin receptors don’t work glucose cannot get out of the bloodstream. Here’s how Dr. Mark Jenkins put it:
It is not hyperinsulinemia that is the problem, it is the receptor. It has been repeatedly shown in the medical literature that increasing the sensitivity of peripheral insulin receptors reduces hyperinsulinemia and hypertension. This process is termed insulin sensitization and is accomplished by aerobic exercise, low-fat / high-carbohydrate diet, and reduction of excessive body fat. Conversely, obesity and high fat diets have been shown to induce insulin resistance. It is important that the high carbohydrate diet have predominantly complex carbohydrates and also have a high fiber content.
And if you think I’m just blowing smoke out my a** just Google ‘high-fat diet insulin resistance’. Scientists have known this thing since thirties.
When researchers want to study diabetes they feed mice a high-fat diet to create diabetes. There’s even a term called ‘high-fat diet induces insulin resistance‘.
If you can tolerate more science talk, here’s what happens to mice on a high-fat diet. If not, you can safely skip this quote.
Main Findings
Unsurprisingly, the mice fed the high-fat diet had an increased body weight compared to those maintained on a normal diet. The investigators observed stable hyperglycaemia and progressively increased hyperinsulinaemia in the mice on the high-fat diet. This is indicative of progressively worsening insulin resistance. After only one week on the high-fat diet, blood glucose levels were raised and intravenous glucose tolerance tests showed reduced glucose elimination and impaired insulin secretion. This demonstrates two distinct mechanistic characteristics of impaired glucose tolerance and type 2 diabetes; namely insulin resistance and islet dysfunction. Metabolic efficiency (that is the energy intake per gram body weight gain) was raised in both the mice fed a high-fat diet and those on a normal diet. However, the increase was attenuated in the mice fed the high-fat diet. Thus the weight gain observed in the high-fat group cannot be fully explained by increased energy intake; there was also a concomitant reduction in metabolic rate.
The concentration of glucose in the blood was consistently 1mmol/l higher in the mice maintained on the high-fat diet than in those on the normal diet throughout the 1 year study period. However, insulin levels continued to rise in the mice maintained on the high-fat diet. This suggests that insulin resistance progressively increased but there were compensatory mechanisms which kept the hyperglycaemia stable at 1mmol/l. When challenged with an intravenous glucose tolerance test, there was no compensation for the insulin resistance and there was a marked deterioration of glucose elimination. This, along with similar patterns observed following an oral glucose tolerance test, highlights that insulin secretion is defective in this model. When the DPP-IV inhibitor was administered in the drinking water of both groups of mice, there was an augmentation in insulin secretion resulting in improved glucose tolerance.
Conclusions and Future Directions
This work has demonstrated that the high-fat, diet-fed C57BL/6J mouse is a robust model for studying impaired glucose tolerance and early stage type 2 diabetes, as it exhibits similar metabolic defects as are observed in the human disease.
Winzell MS & Ahren B (2004) The High-Fat Diet-Fed Mouse: A Model for Studying Mechanisms and Treatment of Impaired Glucose Tolerance and Type 2 Diabetes. Diabetes 53 (3) S215-9
DOES FRUIT CAUSE ACNE?
Now that we have paddled through a mountain of science talk we can move on to the question.
Yes, fruit can cause acne if you have insulin resistance. In that case the sugar in fruits causes a hormonal reaction that can lead to acne.
Get fat out of your blood and reduce insulin resistance with other lifestyle factors and fruit shouldn’t be a problem.
Most fruits are low to medium in glycemic index. And your body is perfectly equipped to deal with sugar from fruits. In Candida and acne blog posts I quoted Steve Pavlina who did an experiment with a raw food diet. Steve monitored his blood sugar levels and they remained remarkably stable. He said that he couldn’t spike his blood sugar levels even if he tried - even eating 19 bananas a day has no effect on blood sugar levels.
Your body is designed to run on sugar and it’s perfectly equipped to deal with it. All your cell run on sugar. The only time your body starts running on fat is if you severely restrict carbohydrate intake. This mechanism is a survival tool, allowing you to survive times of famine or when carbs might not be available. Practically the entire medical community agrees that this ketonic state is not healthy.
Even for people who say they breakout from fruits this is often not the whole truth. When they remove fat out of their diet fruits usually cause no problems. Here’s what on happy Clear for Life customer wrote to me.
Just got to say, you da man! I’m into my 4th week post paleo and my skin is doing very well. I haven’t kept to your diet and detox plan stringently, but am eating an abundance of organic fruits, greens, grains, tubers, and legumes while being very careful about my fat intake. Also maintaining a regular exercise and meditation routine while getting as much sunlight as I can manage working an office job during the rainy season in Seattle.
The first week on my diet I was quite amazed to eat levels of carbs that would have caused a carpet bombing of my face while on paleo. No such result.
After so many years of suffering from acne and then months of being chained to paleo, I’m still quite incredulous to the fact that I can have clear skin and live a normal life.
So you have my sincerest thanks for leading me to a diet and lifestyle that’s providing a long sought-after freedom.
Paleo, or Paleolithic diet, is often high in meat, healthy fats and vegetables with some fruits thrown in. Overall it’s a pretty healthy diet, but the high-fat content can lead to carb sensitivity.
NO ONE DIET FOR ALL PEOPLE
I don’t believe into blood type diet and metabolic type diet theories. These basically say that depending on genetic, or who knows what, make up some people are designed to run on carbs while some are designed to run on fat or protein. So far I haven’t found a single piece of credible evidence to support these theories. And they run against common sense, rationality and real life experience.
That said, I also don’t believe that one diet fits everybody. Yes, I believe that fruits and vegetables are the ideal food for humans. But because we have abused our bodies for decades some people have develped allergies, sensitivities and other conditions that can make eating fruits bad for them, at least some fruits. So we always have to look at the individual and not stick to a dogma.
GOOD POINTS WITH LOW-CARB DIETS
Now that you know why I choose not to eat a low-carb diet and wouldn’t recommend it let’s look at some of the good points in them.
People on low-carb diets tend to eat less processed and junk food they used to. Most junk food is carb-based. Just eliminating soft drinks, candies, pastries (trans fats anyone?) and fast foods can create miracles. I think that simply eating a diet of natural, whole foods is 80% of the solution.
Today people just eat too much of everything. We eat far too many calories. Low-carb diets often get people to eat less. That’s another huge step in reducing insulin resistance and creating health.
Low-carb diets often recommend eating more vegetables. Any diet that gets you to eat less junk and more vegetables is a step to the right direction. Points for low-carb on that.
Creates health awareness. Often when people go on a diet they also become more health conscious. So they might start exercising more and pay attention to their sleep. Diet is just one part of the solution, and in Clear for Life I explained the six elements of health you need to pay attention to. You could eat the perfect diet, but if you ignore the other elements you probably won’t make much progress in terms of health or curing acne.
Finally low-carb diets may get you clear. I know of several people who have gotten clear with a low-carb diet. Since acne is linked to blood sugar response removing carbs somehow short-circuits this mechanisms.
Still, I think high-fruit, low-fat diets are far better at allowing your body to heal itself and removing the root cause of acne. You can actually get to a point where you can eat several days in a row at McDonals and not have it affect your skin at all (unfortunately I speak from experience). Whereas on low-carbs diets such cheats lead to breakouts far more frequently.
CONCLUSION
I hope that by taking you through this long and perhaps a bit science filled journey I managed to shake off some fears you may have concerning fruits. The majority of the scientific community support the idea of high-carb, high-fiber diet in creating health. And fruit gives you both. Plus it’s filled with vitamins, antioxidants and other nutrients.
For all these reason I believe fruits is the ideal food for creating health and curing acne.
Recommended reading:
Fruit Controversy - A free, 30-page report from Frederic Patenaude dispelling the myths about fruits. You have to give your email-address, but Fred sends out good material and doesn’t spam you. And if you really don’t want his emails you can just not confirm your subscription, that way you won’t get any emails from him but still get access to the report.
Atkins exposed.org - A thorough review of science for and against Atkins and other low-carb diets.
Clear for Life - Well, of course you need to read my book : )
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Clear for Life - The lifestyle for health, happiness and clear skin
The comments for this post are moved to Clear Skin Space forums: Fruit… what’s the deal??