Физик-Лирик wrote:
Я больше на количество добавленной энергии ссылался. В зеленых "сахара" меньше. Более того, читал о пользе зеленых яблок. Согласен, надо быть болеe аккуратным в высказываниях, а то я иногда пишу "глюкоза", а имею в виду "углеводы" вообще, и наборот.
А так, конечно, все продукты индивидуальны. Но мне кажется, что здесь играет заметную роль скорости реакции. Ведь если употреблено одинаковое количеств энергии, то почему исход разный? Что такое индивидуал'ные способности организма? Скорости реакциий, активность? Может в этом дело?
Мне больше интересно не про все продукты, а фрукты. Биохимию я изучала более 20 лет тому назад, поетому спрощика из меня не получится, так как в основном всё забыла. Но в целом мне показались интересными исследования вот этого дядьки:
http://www.ucdenver.edu/academics/colle ... hnson.aspx
Description of Research
Our work focuses on how diet (and in particular fructose) as well as serum uric acid may have a role in the epidemics of obesity, diabetes, hypertension, and kidney disease. Our work includes studies in cell culture, animal models, epidemiological studies and clinical trials. Recent studies include studies of fructose induced obesity, insulin resistance, leptin resistance, and fatty liver. We also are interested in the subcellular, and especially effects on the mitochondria in response to fructose and uric acid. Most recently our work has focused on how a reduction in ATP generation in response to fructose and uric acid may translate not only into obesity, but also into fatigue and decreased exercise.
Recent experimental studies include the role of ATP depletion from fructose in the proinflammatory response, the mechanisms of urate uptake, regulation of fructokinase, and the mitochondrial effects of uric acid. We are also studying the role of NADPH oxidase in response to fructose and uric acid, mechanisms of endothelial dysfunction, and the development of leptin and insulin resistance. Clinical studies include trials to lower fructose intake or to pharmacologically reduce uric acid as a means for preventing or treating features of the metabolic syndrome.
1-2 Most Significant Publications
1) Feig DI, Kang DH, Johnson RJ. Uric acid and cardiovascular risk. N Engl J Med 2008; 359:1811-21.
2) Johnson RJ, Perez-Pozo SE, Sautin YY, Manitius J, Sanchez-Lozada LG, Feig DI, Shafiu M, Segal M, Glassock RJ, Shimada M, Roncal C, Nakagawa T. Hypothesis: Could Excessive Fructose Intake and Uric Acid Cause Type 2 Diabetes? Endocr Rev 2009; 30: 96-116
3) Feig DI, Soletsky B, Johnson RJ. Effect of Allopurinol on the Blood Pressure of Adolescents with Newly Diagnosed Essential Hypertension. JAMA 2008;300(8):922-30
У Мерколы есть неплохое интрвью с ним:
http://articles.mercola.com/sites/artic ... -2010.aspx
Revisiting Fruit Consumption
So it appears as though whole fruits, even though they contain fructose, may not be nearly as problematic as fructose from added sugars. One of the reasons for this is believed to be because whole fruits contain high amounts of natural antioxidants, as well as other synergistic compounds that may help counter the detrimental effects of fructose.
“When I originally wrote my book, I was concerned that if you eat large amounts even of natural fruits you could get into trouble,” Johnson says, “and I have had cases where people were eating very large amounts of natural fruits.
When I cut it out or reduced it, they’ve had dramatic weight loss.
So I’ve had a number of people like this who are eating almost a pure fruit diet, and I don’t think that that’s particularly good, but I think that the normal individual eating two to four natural fruits a day probably is going to be fine.”
The key here though is WHOLE fruits, but I still remain convinced that many people, especially those that have insulin resistance, such as those with:
Diabetes
High blood pressure
High cholesterol
Overweight
should be particularly careful about limiting their fructose from fruit to 15 grams per day or less.
How to Know if Fruit May Be a Problem for You
However the NEW appreciation is that if you have your uric acid level checked and have a level of 4 for men, or 3.5 for women, you probably are at a very low risk for fructose toxicity and can be more liberal with these limits.
The higher your uric acid though, the more you need to limit or even avoid fructose until your uric acid level normalizes.
....
