Good steak or a juice mango? That’s the question many acne victims face.
For clear skin and good health should you go low-carb or low-fat? Some people get clear with low-carb diets, some with low-fat diets. How is this possible, and why does it have to be so darn confusing?
Just few questions on Chris’s mind when he emailed me. You can get clear on either diet, and in this post I explain why. I also explain a serious short coming with low-carb diets; something you should keep in mind before trying them.
Let’s start with the original question from Chris.
This high fruit/carb/sugar (from fruit and veggies) especially in those green smoothies then, in regards to the high protein/fat argument, is a death drink.
I have read all your articles and blog entries, I get a good understanding on where you are coming from, but then again I see their point and am trying to link both arguments together, like an argumentative paper, to see why one side says “this” and the other says “that.” I’m trying to see which side is missing something, if they think they are. I know this is hard due to food being a “religion”, like you said, and what not. But I feel you have a good head on your shoulders and are honest.
Let’s see if we can’t clarify things a bit.
Diet wars: fat vs. carbs
In case you are not familiar with what I call the “diet wars” let me explain them briefly. Basically we have ‘carbs’ people fighting ‘fat’ people. People on the carb camp say eating too much fat causes insulin resistance, which that leads to all kinds of problems. People on the other side of the fence claim carbs spike blood sugar and levels, and that leads to insulin resistance.
So both sides agree that insulin resistance is the main problem and the solution is to keep blood sugar levels stable. Just the methods differ; low-fat diet vs. low-carb diet.
Let’s also acknowledge that people have gotten clear with low-carb diets and with low-fat diets. People on low-carb diets can have stable blood sugar levels, and the same can be said about low-fat diets.
So what gives? Does it even matter whether you eat low-carb or low-fat?
Understanding blood sugar controls unravels the mystery
Understanding how your body controls blood sugar levels unravels the confusion. The process works a bit differently for both diets.
In the case of low-fat (high-carb by definition) diets your body turns carbs into glucose and absorbs it directly from the digestive track. Glucose goes to bloodstream and from there insulin takes it to your cells. This is the most efficient route and the way your body was designed to work.
In a healthy individual eating a healthy diet this process works perfectly. Blood sugar levels remain stable. But insulin resistance changes things dramatically. Glucose cannot get from the bloodstream into the cells and blood sugar levels increase. This leads to high insulin levels and all sorts of problems low-carb books warn you about.
So carbs + insulin resistance = problem; carbs + no insulin resistance = no problem.
Now let’s look at low-carb diets and how they affect blood sugar levels.
Your body runs on sugar. That’s the fuel it prefers and, as a general rule, everything you eat gets converted to sugar, even the fats and the protein you eat. Since protein rarely makes up a significant portion of calories I’ll focus on fat here.
When you eat fat the body picks it up from the digestive track and the circulatory system (your blood and lymph) takes it to fat storages.
Think of those storages as a warehouse. As needed the liver converts fats into glucose, dumps it into the bloodstream and from there to your cells.
Your body actively manages this process. It monitors blood sugar levels and instructs the liver to convert just the right amount of fat into glucose. Going back to the warehouse analogy. As orders come in the warehouse manager ships just the right amount of material out, and at the right time.
Because your body manages this process you’ll get a steady drip of glucose into the bloodstream and your blood sugar levels remain stable.
Too much fat still leads to insulin resistance
At the first glance that looks like a great approach, but it has one major setback.
It does nothing to the root cause of the problem: insulin resistance.
While your blood sugar levels may remain steady on a low-carb diet you are still cannot handle carbs. I touched on this in an earlier blog post: Acne victims: To fruit or not to fruit?.
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.
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. (PDF)
Diabetes 53 (3) S215-9
OK, this is research done with mice. But does it apply to humans in real life. Take a look at these comments at a low-carb forum:
“when i sit down and have a nice two lb steak, and measure my blood sugar 2 hours later… since i am diabetic.. i notice that the number is around 85..if i eat any carbs my blood sugars go as high as 500.. steak.. its whats for dinner!!”
“I have severe reactive hypoglycemia. With protein and fat throughout the day, my blood sugars are nice and steady. I never spike and crash. If I ate too many carbs, however, I’d be having some severe episodes.”
“My mom’s diabetic, so she’s testing all the time… When she LC’s [low-carbs] all her numbers are under control… when she goes off plan, her numbers are haywire!
Likewise, just in my own personal experience… I have low blood sugar… if I eat a steak, I have even sustained energy and clear mental function… if I eat comparable carbs, it’s like I’m DRUNK I’m so lethargic and stupid!”
Protein and Insulin Levels
You can find several people at acne.org forums who have gotten clear with low-carb diets. The message from the is very clear. As long as they stay away from carbs they remain clear, but when they eat too many carbs they breakout.
Here’s an email I got from a customer. Before trying Clear for Life he had been on a low-carb diet.
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.
Can you see a common pattern here? None of these people can eat carbs without severe blood sugar problems. Meaning they still have severe insulin resistance - just like the research done on mice said they would.
And what causes their insulin resistance? All the fat in their blood.
So while they may have their blood sugar levels and skin under control they’ve done nothing to the root cause. They simply manage symptoms and have pretty much doomed themselves into never eating carbs.
Low-carb agruments don’t square with reality
OK, I get that, but what about the arguments low-carb people say? That eating carbohydrates leads to spiking blood sugar levels and insulin resistance, and that the only way to avoid that is to avoid carbs.
One good thing that has come out of low-carb diets is that people are more conscious of eating refined sugar and carbs. Because those are bad for you, can spike your blood sugar levels, and lead to acne and other health problems.
But the argument fails miserably when applied to unrefined carbs; the things you find from whole foods. And I have to admire the low-carb people for persisting on their argument even though it flies on the face of reality.
Riddle me this. Most people outside the Western world eat a diet that’s high in carbs (Asians with their rice and South Americans with their corn). How is it there are very few fat people in these places and diabetes is almost unheard of, except in people who eat a more Western diet? According to the low-carb arguments these people should be obese, diabetic and pretty much dead by now.
The longest-lived people fill their plates with unrefined carbs
And if low-carb diet was the key to optimal health how is it possible that the people in the longest-lived cultures eat a high-carb diet?
Costa Rica’s longevity capital
A lot of physical labor still goes into food production there, from clearing fields to raise crops to picking fruit and grinding corn for tortillas, which is a great upper-body workout. In fact, people who live in this region have some of the best physical stamina in the world because they’re always on the move. People eat lots of corn, beans and squash, and there’s fresh fruit almost year-round.
Live longer with advice from the “Blue zones”
The island of Okinawa in Japan is the home to the longest-lived people in the world. They eat plenty of rice, tofu and seafood. The longest-lived Americans are the Seventh-Day Adventists, many of which are vegetarians and have cut out most of the foods available on a low-carb diet.
These people wouldn’t live so long with raging blood sugar and insulin levels.
Then we have people who eat raw foods, the low-fat version. Most of them report dramatic improvements in health, energy levels and athletic performance. I’m one of them, and Clear for Life customers email me with similar stories every day.
I could go on and quote studies showing how low-fat, high-carb, high-fiber diet reverses insulin resistance, but I don’t think we need to go there.
In the face of overwhelming contradictory evidence I can’t put much weight on the low-carb arguments.
Let me say I’m not making a value judgment here, and at the same time wrap this up.
Whether you choose a low-card or a low-fat approach it’s possible to cure acne and live a healthy life. It’s just that the low-carb approach still leaves you with insulin resistance, and that’s a risk I’m not willing to take. Especially since you can get the same results with healthier diet that’s supported by both science and real life experience.
You are free to choose differently, but at least now you understand the whole story and can make a conscious choice.
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