"Researchers tracked 1,230 people ages 70 to 89 who provided information on what they ate during the previous year. At that time, their cognitive function was evaluated by an expert panel of physicians, nurses and neuropsychologists. Of those participants, only the roughly 940 who showed no signs of cognitive impairment were asked to return for follow-up evaluations of their cognitive function. About four years into the study, 200 of those 940 were beginning to show mild cognitive impairment, problems with memory, language, thinking and judgment that are greater than normal age-related changes.
Those who reported the highest carbohydrate intake at the beginning of the study were 1.9 times likelier to develop mild cognitive impairment than those with the lowest intake of carbohydrates. Participants with the highest sugar intake were 1.5 times likelier to experience mild cognitive impairment than those with the lowest levels.
But those whose diets were highest in fat -- compared to the lowest -- were 42 percent less likely to face cognitive impairment, and those who had the highest intake of protein had a reduced risk of 21 percent.
When total fat and protein intake were taken into account, people with the highest carbohydrate intake were 3.6 times likelier to develop mild cognitive impairment. "
Korrelationen begründen zwar grundsätzlich keine Kausalität, aber die modelltheoretischen biochemischen Zusammenhänge, die diese Ergebnisse begründen können, existieren bereits seit geraumer Zeit...
Neue Studie an "highly trained cyclists" aus Schweden: Training mit leeren Glykogenspeichern / Low Carb Ernährung verbessert wohl die oxidative Kapazität der Muskelzellen.
Zitat:
The results suggest that low glycogen exercise may be beneficial for improving muscle oxidative capacity
Int J Behav Nutr Phys Act. 2012 Jun 7;9:67. doi: 10.1186/1479-5868-9-67. Vegetarian diet and mental disorders: results from a representative community survey. Michalak J, Zhang XC, Jacobi F.
University of Hildesheim, Ruhr-Universität Bochum, Hildesheim, Germany. johannes.michalak@rub.de.
Zitat:
ABSTRACT:
BACKGROUND:
The present study investigated associations between vegetarian diet and mental disorders.
METHODS:
Participants were drawn from the representative sample of the German Health Interview and Examination Survey and its Mental Health Supplement (GHS-MHS). Completely vegetarian (N = 54) and predominantly vegetarian (N = 190) participants were compared with non-vegetarian participants (N = 3872) and with a non-vegetarian socio-demographically matched subsample (N = 242).
RESULTS: Vegetarians displayed elevated prevalence rates for depressive disorders, anxiety disorders and somatoform disorders. Due to the matching procedure, the findings cannot be explained by socio-demographic characteristics of vegetarians (e.g. higher rates of females, predominant residency in urban areas, high proportion of singles). The analysis of the respective ages at adoption of a vegetarian diet and onset of a mental disorder showed that the adoption of the vegetarian diet tends to follow the onset of mental disorders.
CONCLUSIONS: Vegetarian diet is associated with an elevated risk of mental disorders. However, there was no evidence for a causal role of vegetarian diet in the etiology of mental disorders.
Vegetarisch ernährte Kinder in Polen und Mangel an lebensnotwendigen Mikronährstoffen
Zitat:
The effect of vegetarian diet on selected essential nutrients in children.
CONCLUSION:
Obtained results indicated that intakes of vitamin B12 and folic acid from vegetarian diets are sufficient to maintain serum concentrations of both homocysteine and iron in the range observed in omnivorous children. High consumption of vitamin A and low vitamin E only slightly affected their serum values. Significantly lower concentration of serum vitamin E in vegetarian children in comparison to nonvegetarians may be reflected with statistically significant lowering of total antioxidant status. Insufficient intake of vitamin D and its low serum concentration should be under close monitoring in vegetarian children. In order to prevent vitamin D deficiency appropriate age-dependent supplementation should be considered.
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