jnk wrote:Interesting stuff to keep in mind (?) :
Asia Pacific J Clin Nutr 2003;12 (4): 396-404
Review Article: Low-carbohydrate diets: what are the potential short and long-term health implications?
Shane A Bilsborough MSc (Nutrition) and Timothy C Crowe PhD
School of Health Sciences, Deakin University, Burwood, Australia
. . . Complications such as heart arrhythmias, cardiac contractile function impairment, sudden death, osteoporosis, kidney damage, increased cancer risk, impairment of physical activity and lipid abnormalities can all be linked to long-term restriction of carbohydrates in the diet. . . . Typically, low-carbohydrate diets are low in fibre, thiamin, folate, vitamins A, E, and B6, calcium, magnesium, iron, and potassium. . . .
. . . One of the main rationales promoted by advocates of low-carbohydrate diets is that insulin secretion, in response to carbohydrate ingestion, is the cause of the metabolic imbalance that promotes obesity. . . . While such a situation is true in theory it is in fact overly simplistic and the actual reality is much more complex. . . . To focus on one particular metabolic response . . . presents a very unbalanced view of the complex metabolic changes leading to obesity. What is overlooked in the simple metabolic situation promoted by proponents of low-carbohydrate diets is that dietary amino acids are also able to stimulate insulin secretion without augmenting glucose concentrations. Investigations examining the insulin response to whole foods showed that protein foods such as meat and fish elicited a greater peak insulin concentration than white pasta. . . .
. . . Long-term compliance to a low-carbohydrate [diet] may put an individual at greater risk of an array of metabolic diseases . . . Advice should be given to an individual following a low-carbohydrate diet to help avoid some of the potential metabolic consequences known to be associated with this diet. For example, advice would include: to increase the intake of water to help prevent dehydration; ensure an adequate intake of fibre from non-starch containing foods; and to consume an adequate amount of calcium either from the consumption of low-fat dairy products, canned fish with bones or from the use of supplements. The use of a general multivitamin formulation would also seem prudent in light of the array of vitamin and mineral deficiencies that may potentially exist. Certainly those with a history of heart problems should be strongly dissuaded from restricting carbohydrates whilst undertaking vigorous exercise due to potential cardiac abnormalities associated with ketogenic diets. . . .
http://dro.deakin.edu.au/eserv/DU:30008 ... s-2003.pdf
. . . Complications such as heart arrhythmias, cardiac contractile function impairment, sudden death, osteoporosis, kidney damage, increased cancer risk, impairment of physical activity and lipid abnormalities
can all be linked to long-term restriction of carbohydrates in the diet. . . . Typically, low-carbohydrate diets are low in fibre, thiamin, folate, vitamins A, E, and B6, calcium, magnesium, iron, and potassium. . . .
Funny thing is if you READ say Atkin's Diet Revolution he talks a LOT about fiber and how to add it as much as possible to help counter carbs so this statement strikes me as one more study were they focus on what they want and twist it to how they want to see things. He also talks a lot about making adjustments and supplements as well as the need to be checked regularly to see what might be needed, so don't you find yourself lacking in vitamins or other areas and warns you of what areas and what to look for. He also says to regularly consult with your Doctor and warns about the risk factors, but also counters a lot of the CAN BE linking.
People erroneously think that the first stage of the Atkin's Diet is the main focus and to run in that stage forever. They all seem to look at the first stage of the diet and stop reading. He even warns people not to stay in Stage One for too long unless Super Obese and insulin resistant, and even then that it should be monitored closely. The thing about the core of the Atkin's Diet is that it is meant in large part to be a "clinical" diet that is closely monitored and then progresses past the first stage. In these studies I wonder if they do them the right way. By lumping in All the different low carb diets in as the SAME I highly doubt they are. In order to say test the Atkins diet one would have to get a group of people together and allow them to progress as they needed, IE to get through Stage one properly and two weeks is just a ball park in the book it can be longer depending on the individual needs. Then the other stages to find each individual's daily carb needs to maintain a healthy level of weight loss( not just water loss) and then finally learn what level of daily carb intake they can handle to keep the weight stable. Then once they have done ALL this and gotten the group to their individual target weight, monitor the group long term for over all compliance and health. Find me a study with the Data Logs on that oh wait you can't because when they do this testing they say Unlimited Meat, high fat, low carb and then run with it as pointed out by Taubes I believe. Also Atkins warns about over doing it on the MEAT as it can be converted and oh ya spike your insulin levels.
I think that by trying to get the word out Atkins "FAILED" in distilling it enough for the general population, and again "FAILED" by not making more clinical enough for the Scientific/Medical community he really should have done 2 books I think, focused at each group. Also one needs to keep in mind the data when the book was published(no I have not read the updated book since his death). He also stated in the book that the Atkin's Approach or "Diet" was still a work in progress depending on studies being done at the time and studies to come IF the Scientific Community would start to at LEAST look at Carbs, Fats, Sugars, and Proteins more closely then just to say cut fat, eat less, and workout more. In this part I think he was successful as most of the low carb diets I have read and seen since are at it's core a form of Atkin's as well as getting people to rethink the way we have been doing things.
When I was preping for Gastric Bypass and planning on doing the RNY you know what I found funny in the prep work? The Atkins diet THEY tell you to go on a month or two before the surgery to induce Ketosis and the goal of this is to put the liver on a diet so they can more easily move it around when they go in Lapriscopicly. They do not call it an Atkin's of course but when I read the pre-op Diet it was Atkins at it's Stage One base. It almost looked like it was taken right out of the Atkin's Food lists for Stage One.
I do NOT believe Atkins is the single complete solution but I do think the method and a lot of the approach is right on and needs long term unbiased testing with tweaking based on sound Scientific study and METHODOLOGY. I will continue digging into the references of the posted article but I am not a Taubes.