Wenn ich den Link klicke werde ich mit Werbebannern zugeschixxen... eine seriöse Seite sieht anders aus.
Das ist die Seite Netdoktor. Keine Ahnung wie seriös sie ist. Sorry, bei mir waren keine Werbebanner(ich benutze Google Chrome). Der Artikel basiert auf diese Studie:
The population explosion that followed the Neolithic revolution was initially explained by improved health experiences for agriculturalists. However, empirical studies of societies shifting subsistence from foraging to primary food production have found evidence for deteriorating health from an increase in infectious and dental disease and a rise in nutritional deficiencies. In Paleopathology at the Origins of Agriculture (Cohen and Armelagos, 1984), this trend towards declining health was observed for 19 of 21 societies undergoing the agricultural transformation. The counterintuitive increase in nutritional diseases resulted from seasonal hunger, reliance on single crops deficient in essential nutrients, crop blights, social inequalities, and trade. In this study, we examined the evidence of stature reduction in studies since 1984 to evaluate if the trend towards decreased health after agricultural transitions remains. The trend towards a decrease in adult height and a general reduction of overall health during times of subsistence change remains valid, with the majority of studies finding stature to decline as the reliance on agriculture increased. The impact of agriculture, accompanied by increasing population density and a rise in infectious disease, was observed to decrease stature in populations from across the entire globe and regardless of the temporal period during which agriculture was adopted, including Europe, Africa, the Middle East, Asia, South America, and North America.
Geändert von pinkpoison (15.11.2012 um 22:01 Uhr).
Accumulating evidences suggest that foods that were regularly consumed during the human primates and evolution, in particular during the Paleolithic era (2.6-0.01 x 10(6) years ago), may be optimal for the prevention and treatment of some chronic diseases. It has been postulated that fundamental changes in the diet and other lifestyle conditions that occurred after the Neolithic Revolution, and more recently with the beginning of the Industrial Revolution are too recent taking into account the evolutionary time scale for the human genome to have completely adjust. In contemporary Western populations at least 70% of daily energy intake is provided by foods that were rarely or never consumed by Paleolithic hunter-gatherers, including grains, dairy products as well as refined sugars and highly processed fats. Additionally, compared with Western diets, Paleolithic diets, based on recently published estimates of macronutrient and fatty acid intakes from an East African Paleolithic diet, contained more proteins and long-chain polyunsaturated fatty acids, and less linoleic acid. Observational studies of hunter-gatherers and other non-western populations lend support to the notion that a Paleolithic type diet may reduce the risk of cardiovascular disease, metabolic syndrome, type 2 diabetes, cancer, acne vulgaris and myopia. Moreover, preliminary intervention studies using contemporary diet based on Paleolithic food groups (meat, fish, shellfish, fresh fruits and vegetables, roots, tubers, eggs, and nuts), revealed promising results including favorable changes in risk factors, such as weight, waist circumference, C-reactive protein, glycated haemoglobin (HbAlc), blood pressure, glucose tolerance, insulin secretion, insulin sensitivity and lipid profiles. Low calcium intake, which is often considered as a potential disadvantage of the Paleolithic diet model, should be weighed against the low content of phytates and the low content of sodium chloride, as well as the high amount of net base yielding vegetables and fruits. Increasing number of evidences supports the view that intake of high glycemic foods and insulinotropic dairy products is involved in the pathogenesis and progression of acne vulgaris in Western countries. In this context, diets that mimic the nutritional characteristics of diets found in hunter-gatherers and other non-western populations may have therapeutic value in treating acne vulgaris. Additionally, more studies is needed to determine the impact of gliadin, specific lectins and saponins on intestinal permeability and the pathogenesis of autoimmune diseases.
Wenn Du mal "Paleolitic diet asthma" googelst, stößt Du auf zahlreiche wissenschaftliche Artikel und episodische Selbsterfahrungeberichte von Betroffenen.
Ergänzend dazu dieser Link mit umfangreicher Quellensammlung zum Thema "Paleo und Asthma".
Vitamin D hat nur bedingt mit Ernährung zu tun - also ist es keine "Ernährungsstudie" im engeren Sinn, um die es hier geht. Interessant, abe rvöllig unklar, wie die statistische Korrelation einzuordnen ist. Korrelation bedeutet keine Kausalität...
Eine mögliche Interpretation geht in die Richtung, dass die Umwandlung von 25OHD in 1,25OH bei den langlebigen Familien effektiver funktioniert, was eine bessere Verfügbarkeit der aktiven Form des Vitamins (und damit Langlebigkeit) auf Kosten eines dafür niedrigeren Spiegels der Speicherform bedeutet. Nix gwies woas ma ned.
Jedenfalls bringt ein Blick auf die Masse der Studien (diese hier ist eine rare Ausnahme....) ein völlig anderes Bild, was die Bedeutung von Vitamin D angeht. Ganz neu zB diese Studie zum Risiko von Herz-Kreislauf-Erkrankungen. Aber auch hier: Korrelation bedeutet keine Kausalität....
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