| Eddie Vedder |
2008-08-19 05:15 |
Natriumglutamat och risk för övervikt.
En studie som sammankopplar tillsatser av glutamat i kosten med ökad risk för utveckla övervikt. Jag tycker den här studien är intressant sett till det faktum att det handlar om vanlig bra mat där man tillsatt glutamat på egen hand som smakförstärkare, d.v.s. hemlagad husmanskost med egentillsatt glutamat. Det innebär ju att man i just den här studien i alla fall inte kan beskylla allmän skräpmat som en confounder vilket man annars skulle kunna gör om det vore så att människorna som åt mycket glutamat och samtidigt ökade i vikt gjorde detta via hamburgare och pizza.
Fortfarande kan man ju självfallet inte dra 100%-iga slutsatser här heller, det kan man aldrig, men just den faktorn tycker jag är viktig. Det handlar trots allt om att något får grupp x att äta mer av samma bra mat än grupp y och att en variabel för grupp x är mer natriumglutamat i kosten. Förutsatt någorlunda korrekta angivelser vid kostintervjun förstås.:)
Citat:
Abstract
Animal studies indicate that monosodium glutamate (MSG) can induce hypothalamic lesions and leptin resistance, possibly influencing energy balance, leading to overweight. This study examines the association between MSG intake and overweight in humans. We conducted a cross-sectional study involving 752 healthy Chinese (48.7% women), aged 40–59 years, randomly sampled from three rural villages in north and south China. The great majority of participants prepared their foods at home, without use of commercially processed foods. Diet was assessed with four in-depth multipass 24-h recalls. Participants were asked to demonstrate MSG amounts added in food preparation. Amounts shaken out were weighed by trained interviewers. Overweight was defined as BMI 25.0 or 23.0 kg/m2(based on World Health Organization recommendations for Asian populations). Eighty-two percent of participants were MSG users. Average intake was 0.33 g/day (s.d. = 0.40). With adjustment for potential confounders including physical activity and total energy intake, MSG intake was positively related to BMI. Prevalence of overweight was significantly higher in MSG users than nonusers. For users in the highest tertile of MSG intake compared to nonusers, the multivariable-adjusted odds ratios of overweight (BMI 23.0 and 25.0) were 2.10 (95% confidence interval, 1.13–3.90, P for trend across four MSG categories = 0.03) and 2.75 (95% confidence interval, 1.28–5.95, P = 0.04). This research provides data that MSG intake may be associated with increased risk of overweight independent of physical activity and total energy intake in humans.
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http://www.nature.com/oby/journal/v1...y2008274a.html
Association of Monosodium Glutamate Intake With Overweight in Chinese Adults: The INTERMAP Study. Obesity (2008) 16 8, 1875–1880. |
