Tag Archives: low-carbohydrate-diet

If you are into herbs, health and diet, why are you fat?

Me in Guatemala doing acupuncture outreach, not waiting around for life.

I  was recently asked, under the anonymity of a Google comment, how I can be into herbs and health when I am clearly fat,  I’m sure the question has been let unasked a lot more than it was voiced.  And my first instinct was to get all defensive:  the great American herbalist Michael Moore was fat.  The great Annishinabe medicine woman and ethnobotanist Keewaydinoquay  Peschel was fat.  What does fat on your body have to do with what you know, anyway?

The short answer is that once you are fat, unless you are slightly fat or you had a short term weight gain, it is incredibly difficult to reverse. You can lose weight, but it doesn’t last. You can do quite a bit to stay healthy via your diet and lifestyle, but you may end up healthy and fat.

I’ve been fat since age 5, with a short break during my late teens and 20s when I felt like and metabolically was an underweight fat person. Maybe it was my grandmother’s Native genes clashing with a 1960s Standard American Diet- I took after her rather than my parents.  Maybe it was a reaction  (mine? my  parents?) from nearly dying as an infant from weight loss due to digestive problems, although I didn’t notice them pushing food.  Perhaps I caught one of those obesity-promoting adenoviruses. Maybe it was all those fattening antibiotics I had for ear infections before anyone considered that dairy might be the culprit.  Perhaps my body had to sequester exposures to pesticides painted on the walls at the cabin.  Maybe I overate when they pulled me out of my sweet smelling acacia tree to send me to a dismal school and my happiness quotient fell.  In any event I was on Metrecal, the Slimfast of the day, by the first grade, embarrassed as we discussed our breakfasts in health class.  Junior high was torture, where I was relegated to the few chubette clothes available, until I discovered Guatemalan skirts and peasant blouses. I focused on learning instead of socializing.

I had by this time become quite expert on calories, carbohydrates and food exchanges, not to mention setpoints and portion sizes.  My doctors had suggested everything from locking cupboards, to liquid meals to diet pills that left me wired, but I believed there might be better ways.  I was under orders to lose weight by any means possible. I biked, swam in the summer, lived on a hill so steep the school bus couldn’t drive up so I walked it instead, went hiking in the woods behind our home, and had daily physical education classes taught by self-hating drill sergeants,  I wasn’t exactly a couch potato although I preferred reading, acting in school plays and establishing an underground school newspaper to afterschool sports.

I finally lost weight when I left home, had a new start, and went on a zero carb diet (in Italy, yet.)  I kept most of it off when I got home because I lived a mile’s walk from campus and took five 1-2 hour dance classes a week, blessedly subsidized by parents and low tuition.  And as a young single who chose a bike rather than a car, I swam daily and went scubadiving on weekends, so it only slowly crept back.  But the job ended, I moved to New York where work hours were long, picked up an inactive husband who preferred restaurants to Appalachian trail hikes and saw my weight skyrocket with the hormonal changes of pregnancy.  Periods of stress drove my cortisol through the roof.  By the time my children were born I was over a threshold where I could lose weight without getting sick or exercise without injury.  Not that I didn’t try:  Weight Watchers, Optifast, vegan diet, vegetarian diet, Atkins diet, metabolic bump diets, macrobiotic diet, fermented foods, paleo diet, Paul Bergner’s insulin resistance class, hypnosis, therapists, personal trainers, one- hour exercise sessions that didn’t work, two- hour exercise sessions that burned fat but left me too exhausted to work.  There was a lot of good stuff in many of those plans. I lost some weight. And I gained everything back.English: Typical Atkins diet meal

Was I perfect?  Of course not. As a teen I had justified saving calories from eggs  for ice cream (after all, a calorie is a calorie isn’t it?) I have caught myself eating emotionally, but it was aberrant enough to stand out and my thin friends do the same on occasion.  Portion size may be an issue, but the fat cells themselves call out constantly to eat more, something not true of thinner people. Occasionally I go on tiramisu jaunts.  I go between wondering if I am gluten-sensitive or just carb-sensitive and go in and out of drinking milk.

The International Journal of Obesity says that of people who lose 75 or more pounds, 95-98% gain back every pound within 3 years, 2/3  of them within the first year.  Even Oprah who can afford cooks, a personal trainer and all the backup possible gains it back. People who keep weight off are a statistical aberration, unless the gain was transient. Younger men who haven’t been obese long and are willing to, say, become exercise instructors or indulge in full time physical labor stand the best chance of  joining that elusive 2-5%. as do people who spend the rest of their lives monitoring every mouthful and every bit of exercise.  The National Weight Control Registry tracks strategies and data on those who lose at least 33kg and keep it off or 5 years. Even they say that only 20% of dieters are successful at a 10% weight loss for over one year.   You have to make your life about keeping weight off and maybe change your work to something physical all day.

Three adult Hymenolepis nana tapeworms. Each t...
Three adult Hymenolepis nana tapeworms. (length: 15 to 40 mm) (Photo credit: Wikipedia)

I haven’t tried everything.   Tapeworms, for instance  seemed to work for Maria Callas, but I’m squeamish and like my B vitamins.  Nor have I tried surgery, although I did check it out.  The painful death of my pharmacist after gastric bypass surgery destroyed any question I might have had about a procedure that creeps me out on the face of it.  (What colonizes that empty length of intestine cut off by the surgery?)  Two of my obese patients had the surgery and are still fat- and one lost her spleen during the operation.  And while a lap band seems less intrusive, I watched one patient struggle for a year with infected ports. For a cool $25,000 plus extra surgery for the sagging skin you get an 80% complication rate and 5 years of becoming thinner before you gain it back.  Even if you get thin, you are metabolically fat compared to an always thin person, with every deflated cell urging you to eat at any moment.  And the yo yo is harder on your heart and toxin release harder on your brain than just staying fat.  Thanks, I’ll work on health at any size.

The truth is, despite Joy Nash’s wonderful YouTube  Fat Rants, fat is a matter of shame in our society.  We don’t criticize the selfish or the vain nearly as much as the fat.  Obesity is treated as a character flaw instead of  just extra avoirdupois.  It is extra flesh not failure incarnate. Heck we have a worldwide epidemic of obese 6 month olds who probably eat and move much like infants always have, so it makes no sense to blame.  And we need to get real about it.

Diagram of a Roux-en-Y gastric bypass.
Diagram of a Roux-en-Y gastric bypass. (Wikipedia)

I have no question that if I had bypass surgery and lost weight that people would congratulate me on becoming healthier and it might well help me get a teaching job or keep patients.  It would not be true. My digestion would be permanently ruined, I’d weaken the muscle in my heart along with all the other muscles (non ketogenic weight loss lowers your muscle mass and the heart is mostly muscle) and I would have scars through my meridians.  To be fair my feet and knees would feel better and I might have more energy during the low weight  phase, but the assumption of health would be falsely generalized.  It is possible that I would live up to 3 years longer, although those figures were not derived by comparing fat and formerly fat people and they certainly didn’t sort out the physically fit fat people for comparison.  We aren’t talking decades of life.  Besides the most recent word is that thin people with big bellies die sooner than the obese.

What I can do, even if the fat is intractable, is something about is my health and fitness.  A low carbohydrate diet including good fats, green vegetables, seaweeds, low glycemic flavonoid-rich fruits and clean protein will keep my blood sugar down and normalize my cholesterol and triglycerides.  Exercise will keep my circulation and lung function intact.  Weight training will build muscle mass.  Yoga, qigong, MELT or Pilates will stretch my muscles and strengthen my core.  Regular acupuncture, massage or craniosacral balancing will keep me centered and enough sleep will allow restoration.

Most important I love the work I do and would rather be fat than work at a different, more physical job or spend an additional hour at the gym when I could be spending time figuring out how to affect patients with difficult problems that don’t lead to easy resolution.  While my preference for treating zebras, as difficult cases are called, may not make me thin or rich, at least I learn things that help others.

So what have I learned about weight loss?

  • Statistics on health and Body Mass lump couch potatoes together with the fit fat people.  You don’t want to be a couch potato.  If you work out regularly and eat well, your main problems will be structural.
  • Overweight people react differently to dieting strategies than do obese people.  Formerly fat people are metabolically quite different than always thin people of the same weight.  Don’t assume that everyone can do the same thing to either lose weight or stay thin.
  • Most fat people do best on low carbohydrate diets, without appreciable grains.  Even if you might have done well with grains pre-obesity, your metabolism is probably damaged by long term weight gain. Go Paleo, for good.
  • If you want to lose weight, you need to restrict food even on a low carb diet.  You may be too satisfied to overeat, but many fat people have lost touch with their body’s signals.
  • Ketosis (not the dangerous ketoacidosis) metabolically causes you to lose fat rather than muscle, provided that you don’t overeat. There are entire civilizations in ketosis (traditional Inuit, Bantu, hunter-gathers) who are not in active weight loss. Nonetheless I know of no better start for fat burning.
  • To start a ketogenic diet, mineralize yourself with magnesium, potassium, iodine, trace minerals, sea vegetables and kale.  Otherwise the first two weeks while you are transitioning from glucose-burning to ketone (fat) burning will be hell.  Which is probably why Atkins allowed free consumption of fats during that induction period.
  • For a long term diet, a food plan that hovers between ketosis and low carb just above ketosis is probably the best.  Green vegetables and clean fish or pasture-raised meat, eggs from outdoor chickens and small amounts of berries, yellow fruits and vegetables or pickled root vegetables should be the basis of your diet.
  • This actually can be done with a vegetarian diet but will be a lot more interesting with animal protein.  The infamous low glycemic vegetarian diet that beat the ADA diet for diabetes was basically vegetarian Atkins.
  • Weight gain after periods of intense stress may be more benign than other self-medication (although others may not act as if it is.)  The weight won’t necessarily go away when the stress does or just because you take up yoga, even Birkram.
  • There is a threshold beyond which losing weight is close to impossible without extraordinary changes, so don’t get there. Overweight is better than obese.
  • The kind of extraordinary changes that allow weight loss include moving away from family and friends who may reinforce inactivity or stress, changing to a very physical profession, radically increasing exercise and changing the kind of food you need and a spiritual renewal that doesn’t involve lots of sitting  or reading. Move to a 5th floor walk-up or work a  half hours walk from home to build in exercise.  You also need to make peace with monitoring everything you eat, monitoring exercise and monitoring weight.
  • Some people become fat in reaction to sexual abuse, negative feedback from family members, dissatisfaction with a lack of purpose, or to hide sources of shame.  Others pick up a sense of shame after they become fat.  Continued emotional eating may or may not play a part in this reaction.  Getting rid of the shame is essential to your well-being, whether or not it converts to being thin.
  • If you suddenly gain weight, loose it as soon as possible so that your setpoint weight doesn’t increase.
  • When you take medications like steroids, antidepressants, antipsychotics, long term antibiotics or insulin you will probably gain weight, often substantial amounts. Statins can cause diabetes, but are pushed on people with insulin resistance.  It may be worthwhile, but consider the effect in evaluating your course of treatment and also whether protective lifestyle changes are realistic.
  • Most benefits of weight loss happen in the first 10%.
  • After 10% weight loss, your setpoint tries like crazy to make you regain the lost weight.
  • While some people can, I have never lost weight from exercise alone but I also don’t lose significantly without exercise, including interval aerobics, weight training and stretching. Don’t skip the stretching, because heavy weight predisposes you to injury if your muscles are in the wrong place.

    Chickweed
    Chickweed

  • If you lose weight, you will free toxins locked up in your fat which may be redistributed in your organs.  Take detoxifying herbs like dandelion, chickweed, Oregon grape, triphala or coptis and seaweeds to tie them up.  Getting sick will derail your exercise program.
  • Extra weight is especially hard on your feet, hips and knees.  A heel spur or knee problems will also derail exercise.  Get good shoes, watch Katy Bowman’s biodynamic body DVDs, stand on little balls to massage the small areas of your feet, vary your exercise and be proactive about foot, leg and hip care.
  • Modify exercises to function like they should, not to look like what thin people do.  Maybe that means your toe touch only goes to your thighs.  Maybe your push-up is against a wall, not the floor.  And you need a total substitute for the plough asana if your bust or belly won’t let you breathe.
  • Minerals are essential, especially magnesium which is no longer in soils in appreciable quantity, iodine, potassium, chromium and trace vegetables.  Seaweeds are the main food source of minerals.  Additionally octacosanol will bring down triglycerides.
  • If your endocrine system is unbalanced, try adaptogen herbs like rhodiola, ashwaganda, ginseng and eleuthero.
  • Weight loss herbs basically fall into a few categories:  detoxification, bulk laxatives, liver support, starch blockers, fat blockers and thermogenic herbs. Studies are minimal and are often done on small groups of slightly overweight people.
  • Thermogenic (heating) herbs like cayenne are fine if you run cold.  Otherwise go to cooler circulatory herbs like turmeric, frankincense, myrrh or chuanxiong.  A bit of pepper, long pepper (pipalli) or prickly ash will help the herbs to penetrate and won’t be too hot in small doses.
  • Starch blockers, from phaseolus beans usually give you gas while you don’t assimilate the starch.  Just stay away from starch.
  • Liver herbs like dandelion leaf, green coffee extract, Oregon grape, berberis and milk thistle will help you convert fat and get rid of toxins that were locked up in your fat. Also see detoxification herbs.
  • Fat blockers  are basically liver herbs that cause you to dump.  The pharmaceutical version Olestra (orlistat) can cause explosive diarrhea and deplete you of fat-soluble vitamins and EFAs, but does cause your body to dump toxins.  A less intensive intervention using 7 fat free Pringles a day got rid of both persistent organic pollutants like chlorohexabenzene and fat in some studies.  Pringles of any sort are not food, but personal experience using fake fats to get rid of artificial toxins were not notably successful.
  • The only laxatives I would suggest are triphala, a nourishing and detoxifying group of fruits, and if you are constipated, psyllium, flax or cannabis seeds (sterilized and legal in Chinese medicine stores.)   If it is really bad one dose of senna, cascara sagrada, aloes, or da huang (rhubarb), but only for the first bowel movement.  Eat seaweeds and okra.  Take probiotics or probiotic foods. Drink lots of water.
  • Did I say drink lots of water?  And yes, some of that can be coffee or teas.  Best to avoid diet drinks, even the fairly benign stevia-sweetened ones.  Or save them for special occasions.  Taste can trigger your insulin secretion.
  • Go for periods of time without appreciable carbs, like between dinner and lunch with salmon salad or a veggie frittata for breakfast. When your blood insulin goes up you can’t burn fat or make muscle.
  • Don’t graze.  See above for why.
  • Eat before exercise, which brings your insulin curve back down.  If you eat or swill a sports drink afterwards, you defeat the metabolic effect of exercise.   (Marathoners or Iron Men are an exception and aren’t losing weight, but if you have read this far it probably doesn’t apply to you!)
  • Exercise after eating, even a short spin around the block.
  • Take pride in what you do well, how you affect the world and in who you are.  There will always be people willing to see you as a size rather than a person.  Don’t fall for their shortsightedness.

See also:

Our Symbionts, Ourselves

Chemicals and Obesity: What if if isn’t all your fault?

Why A Parasite Cleanse Can Make You Worse

Probiotics and Probiotic Foods

 

 

 

 

 

 

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Two Year Low Cal/Low Carb Diet Study Misleading

A two year, $4 million  studyof 307 people, purporting to compare low carb to low fat diets has been completed, apparently showing similar weight loss after two years, but improved blood lipids for people who followed the low carbohydrate diet. They tell us study results show it doesn’t matter which way we diet.   But the study has several problems:

  • The low carb diet went for 12 weeks, after which people were encouraged to add 5 grams of carbohydrates daily for a week, increasing carbohydrates until their weight stabilized.
  • The low calorie diet went on for 2 years.  So a short term diet was compared to a long term diet.
  • No one looked at actual food intake.  Yep, a diet study with no data on what people actually ate eventhough they kept food diaries.
  • And data from dropouts was extrapolated and included, or as the rest of us call it, the data was made up.

Why Would You Include Data from Dropouts?

The last point may need some explanation.  Usually one would compare only people who followed the protocol, but in recent years people wondered what happened to the dropouts.  Why would you ever look at data from people who didn’t follow the diet?  It seems counterintuitive, but there are legitimate questions here, if  too many people drop out of a study it may be because the protocol causes real life problems.  If you are looking at what is called “Intent to Treat” then you might well look at the end result to see if prescribing a certain course of action is likely to help in the real world where people don’t always follow directions. It tells you what people might do in an experimental context, not which course of action is better.   But you want to use real end data on the dropouts, and to segregate it from the compliers.  If you mix the data together, then it is impossible to tell whether Protocol A (say a low carbohydrate diet) is better than Protocol B (say,  a low calorie diet) when people follow directions.  In other words, you would never use Intent to Treat (ITT) in a comparison of which diet is actually better.  An ITT analysis can draw the exact opposite conclusion to a traditional analysis.  But the researchers did just that in this study.

“To assess departures from the missing-at random assumption under informative withdrawal-that is, the missing weights are informative for which patients chose to withdraw or continue to participate in the study-we present sensitivity analyses. As such, we assume that all participants who withdraw would follow first the maximum and then minimum patient trajectory of weight under the random intercept model.” (italics mine)

So they did not use real outcomes for the noncompliers or even assume that the real outcomes on the others would apply.  They extrapolated them based upon a model that significantly understates the difference between the two groups. (They spent more time and charts on the model than on the real data, not all of which is reported in the full text study.)  That means the data were made up based on the group that continued, not at the average rate, but at the “minimum trajectory”.   In other words they extrapolated at the low end of the data, which minimizes the effectiveness of the diet.  Consider that adding in the dropouts alone can make significant differences.  Richard Feinman who has looked at Intent To Treatment gives the following table showing how ITT masks the true response of those that follow a low carb diet in two prior studies:

Weight Loss in Diet Comparisons and the Effect of Analysis.
    Data for 12 months Weight Loss (kg)
 


 

    With Drop-outs SD Only Study Subjects SD
 


 

Foster, et al. low carb 4.4 6.7 7.3 7.3
  low fat 2.5 6.3 4.5 7.9
  difference 1.9   2.8  
 


 

Stern, et al. low carb 5.1 8.7 7.3 8.3
  low fat 3.1 8.4 3.7 7.7
  difference 2   3.6  
 


 

Feinman Nutrition & Metabolism 2009 6:1   doi:10.1186/1743-7075-6-1

Frank Hagensays “if you use the numbers that include the people who dropped out of the diet, in the “With Drop Outs” column, where the low carb group in the “Foster, et. al.” study only lost 1.9 kg more than the low fat group. But look at the column titled “Only Study Subjects”, comparing those that actually followed the low carb or low fat diet, and you find that the low carb dieters actually lost 2.8 kg [6 pounds] more than the low fat dieters (47% more weight). For the “Stern, et. al.” study, we find even greater numbers: a difference of 2 kg between the diets using ITT and 3.6 kg [8 pounds] when counting those that actually followed the diet plans. That’s 80% more weight loss.”  As you can see, the difference in outcomes is quite a bit more distinct when dropouts are not included.

In this study,  the authors did not segregate the data  for only people who followed the diet.  So we do not know what percentage of the low carbohydrate dieters were still on a low carbohydrate diet at the end nor what percentage were on a low calorie diet.  Judging from the triglyceride rates which drop when carbohydrates are low, few of the final group of dieters were still on a low carbohydrate diet. This is confirmed by the higher level of urinary keytones at 3 and 6 but not 12 or 24 months.  But that would happen anyway because of the design of the study.

Triglyceride Effects:

Diet Group 3 Mos. 6 Mos. 12 Mos. 24 Mos.
Low Fat -17.99 -24.3 -17.92 -14.58
Low Carb -40.08 -40.06 -31.52 -12.19

What Is A Low Carbohydrate Diet?

Common sense would say that to compare two diets, one low carbohydrate and one low calorie, you need to have some sort of set criteria for what is eaten and to run both diets similarly.  In the study, the low carb group had a very low carbohydrate induction phase followed by gradual increases of 5 grams daily each week, increasing indefinitely.  The low fat group did not increase calories during this time.  As the abstract says:

A low-carbohydrate diet, which consisted of limited carbohydrate intake (20 g/d for 3 months) in the form of low–glycemic index vegetables with unrestricted consumption of fat and protein. After 3 months, participants in the low-carbohydrate diet group increased their carbohydrate intake (5 g/d per wk) until a stable and desired weight was achieved. A low-fat diet consisted of limited energy intake (1200 to 1800 kcal/d; ≤30% calories from fat). Both diets were combined with comprehensive behavioral treatment.

Low Carb Diet Pyramid (not based on Atkins), if you must have a pyramid

Now if you are on a low carbohydrate diet for 12 weeks months, and then transition to a higher carbohydrate diet, with no outer level specified, then you are off of the low carbohydrate diet  at 100 g daily  by week 28 (or 6 months )and on a high carbohydrate diet of over 150 grams ten weeks after that. At 12 months, you’d be up to 210 grams per day which probably causes weight gain.  So even those who followed the protocol were not on a low carbohydrate diet for most of the two years. We are comparing a low-calorie weight-loss diet that lasted for two years with a low-carb diet that reached maintenance level within 6 months.

The study suggested only continuing the additional carbohydrates “until desired weight was achieved”  but since the average starting weight was 226 pounds, and average weight loss was 27 pounds at maximum, then “desired weight” was never achieved.

A better design would probably had the induction diet for two weeks, followed by a 60-80gram low carbohydrate diet for the entire period.  This is the methodology used in the Atkins diet books which the researchers claim they were using.

And What Were The Results?

According to the study, “During the first 6 months, the low-carbohydrate diet group had greater reductions in diastolic blood pressure, triglyceride levels, and very-low-density lipoprotein cholesterol levels, lesser reductions in low-density lipoprotein cholesterol levels, … had greater increases in high-density lipoprotein [good] cholesterol levels.”  The low carb group also had more adverse effects, primarily bad breath, constipation, and dry mouth during the first six months of the study which all could have been avoided with some simple counselling on which foods to eat.
Let us look at the results while participants were still on the low carb diet at 6 months:

Indicator          Low Fat          Low Carb

Weight loss          25                          27     pounds

Triglycerides     -24.3                  -40.6

HDL                          +0.9                  +6.2

TGL/HDL                 2.15                   1.39     (under 2 preferred)

As we can see, all parameters were better with a low carbohydrate diet at the 6 month period when carbohydrates had just reached maintenance levels.  Curiously blood sugar was not tested although most participants are likely to suffer from Metabolic Syndrome (diabetics were excluded.) The advantage continued at 12 months although by that time carbohydrate levels were approaching the weight gain level and some of the weight gain was noted.  By 2 years, only the gain in good cholesterol persisted, although in fact there was a “strong trend” to lower blood pressure in the formerly low carbohydrate group.

At the end of two years, while the low fat group was still dieting and the low carb group had been off their diet for a year, weight loss was the same (well there was slightly more weight loss in the low carb group but  it wasn’t considered significant.)  This should be news, although I admit the story is still muddled.  It certainly doesn’t lead to the conclusion that the type of diet doesn’t matter though, as the researchers have been saying.

Ketones and Low Carbohydrate Diets

Ketone Production

Why would they design a weight loss study this way?   Tom Naughton looked up the papers the researchers had previously done, and found a bias for low fat diets in their previous research.  I don’t necessarily suspect that they deliberately were seeking to waste $4 million or to mislead the  public about diets.  I think that the bias about a ketogenic diet’s safety and an imcomplete knowledge about how it works probably biased the study design.  First off, the Atkins diet, upon which the low carb diet was ostensibly based, starts with an induction period (usually 2 weeks of an extremely low carb ketogenic diet) and then adds carbs gradually until just before the body stops producing ketones, somewhere between 60-80 grams for most people.  It doesn’t add carbs forever.

Ketones are normal byproducts of burning fat which are water (blood) soluble.  These blood-soluble  fats are a source of energy for tissues including the muscles, brain and heart. Ketones can significantly substitute for sugar in the brain.  But both ketosis, a normal way of extracting energy from fat, and ketoacidosis, a dangerous  condition where the body is breaking down its own tissues from starvation or Type 1 Diabetes, produce ketones.  Ketones are easily measured  but distinguishing the cause is not.  So the presence of keytones seems to send off alarms even when the cause is benign.  I have heard many doctors and nurses caution against ketosis in a low carb diet “just to be sure” when what was really dangerous would be ketoacidosis- ketosis is the point of most low carb diets because it indicates burning fat.  This study did measure ketones, but didn’t distinguish between the causes, so treats the presence of ketones in the urine as potentially dangerous.  This causes me to believe that the researchers wanted to limit the time spent in ketosis, and sloppily did not put an upper limit on carbohydrates.  Unfortunately there is no discussion of the carbohydrate increase design in the study.

Low carbohydrate diets have been shown to increase weight loss in a number of studies including the current diet, the last Foster study and the Stern study discussed above,  but their reporting has been often distorted because of the low fat bias in nutrition which has been in effect since Ancel Keys promulgated the lipid hypothesis  based upon highly selected country data in 1963.  For instance in the Farmington study, high fat diets were associated with lower rates of most cancers but the headlines and research summaries focused on the few, less common cancers that were associated with high fat diets.  The researchers indicated that they wouldn’t have gotten funding for further analysis afterwards.  (Atkins archives).  A meta study (now withdrawn) by the Cochrane Group showed a weighted average of 5.1 vs 7.5 lbs at 12  months, but was reported as “no significant difference”.   A 2006 study by vegan-proponent Neil Barnard showed that a low glycemic index, flourless, vegan diet, that had fewer carbs than the American Dietetic Diet, was healthier, but it was not described as lower carbohydrate or even low grain diet.  The ADA diet has 6-11 servings of grains or starches a day plus fruits and vegetable sources of carbohydrates, giving approximately 220 g per day and allows unhealthy refined starches and vegetable oils (also avoided by the vegan group).   Only now, since Gary Taube’s New York Times article What If It’s All Been a Big Fat Lie? blasted through the establishment anti-fat bias, have low carbohydrate diets been considered potentially allowable.

Blood lipids and blood pressure were better for those who followed the diet

If you only look at weight loss, the differences between a low carbohydrate and low calorie diet are minimal unless the low carb diet is ketogenic, but the low carb diet has a slight advantage.  If you look at overall health parameters including blood sugar, HDL, TGL and blood pressure, a low carb diet has distinct advantages.  Based upon this study at every point there was no difference in bone loss.  During an induction period there are significant side effects to a low carbohydrate diet for 7-16 days, including a dry mouth, bad breath, headache and constipation but these will pass after the sugar withdrawal symptoms pass- essentially you are coming off of a drug.  Mineralization, lots of green vegetables and adequate hydration will help prevent this.

If you wish to learn more, including ways of transitioning with fewer side effects,  I cannot suggest anything better than  Paul Bergner’s course “Insulin Resistance: Pathophpysiology and Natural Therapeutics” which puts everything together with CDs and over a hundred pages of resource materials.  (I have no financial interest in promoting this, but it is the best I have found.”)

Sources:

Eades, Michael.  Metabolism and Ketosis

Foster, et. al. Weight and Metabolic Outcomes After 2 Years on a Low-Carbohydrate Versus Low-Fat Diet A Randomized Trial

Feinmann, Richard.  Intent to Treat:  What is the Question?

Hagen, Frank.  Lies, Damn Lies and Statistics.

Howard BVet al.: Low-fat dietary pattern and weight change over 7 years: the Women’s Health Initiative Dietary Modification Trial.

Howard BV, et al.: Low-fat dietary pattern and risk of cardiovascular disease: the Women’s Health Initiative Randomized Controlled Dietary Modification Trial.

Naughton, Tom.  Another Biased Study? Maybe…

Naughton, Tom.  Inside Information from “Fat Throat”

Barnard, N. Diabetes Care, August 2006; vol 29: pp 1777-1783. News release, Physicians Committee for Responsible Medicine.

Cochrane Database.  Advice on Low Fat Diets for Obesity.

Taube, Gary.  What If It’s All Been A Big Fat Lie?

See Also:

What Does Research Say About Eating Meat?

Fructose, Sugar, Poison and Obesity

The China Study Misrepresents Data: Does Not Support a Vegan Diet.

Strategies for Insulin Resistance

Simple Ways to Support Brain Function

 

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